Derek J. Hansford



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Derek J. Hansford

The Ohio State University

293 Bevis Hall, 1080 Carmack Rd., Columbus, OH 43210

Nanotech West Laboratory, 1381 Kinnear Rd., Ste. 100, Columbus, OH 43212

(614) 688 – 3449 hansford.4@osu.edu

Education


Ph.D. in Materials Science and Mineral Engineering

University of California, Berkeley, May 1999

Dissertation: Microfabrication Materials for Biomedical Microdevices

M.S. in Materials Science and Mineral Engineering

University of California, Berkeley, Dec. 1996

Thesis: Biocompatible Silicon Wafer Bonding for Biomedical Microdevices

B.S. in Materials Science and Engineering, Magna cum laude

Case Western Reserve University, May 1994


Academic Appointments

The Ohio State University Columbus, OH

Associate Professor 2007 – present

Assistant Professor 1999 – 2007



Biomedical Engineering (99-present)

Materials Science and Engineering (99-present)
The OSU Nanotech West (Ohio MicroMD) Laboratory Columbus, OH

Scientific Advisor Board Aug. 2000 – present

Chief Scientist, Microfabrication Apr. 2002 – present

Interim Director June 2004 – Sept. 2005



Other Professional Experience


UC Berkeley Berkeley, CA

Head Graduate Student Instructor Aug. 1997 - May 1998



Electrical Eng and Computer Sci 143: Processing and Design of Integrated Circuits

Ran the lab section, including re-working of lab manual and implementation of new protocols that enabled properly functioning NMOS devices. Duties included teaching of laboratory sections, supervising other TAs, providing a grading scheme for lab reports, grading lab reports, and writing lab manual sections. Also performed emergency re-work of protocols to enable fabrication without fully functioning wetbenches.

UC Berkeley Berkeley, CA

Graduate Student Researcher June 1995 – May 1999



Materials Science and Mineral Engineering

Performed research on novel materials fabrication for biomedical microdevices, including novel polymers for biocompatible silicon wafer bonding and structural materials for thin film nanoporous membranes.

Cepheid Sunnyvale, CA

Engineering Intern, Engineer June 1998 – Dec. 1998

Performed research and design on an ultrasonic spore lysing system for B. anthracis detection in a microfluidic platform, which is now used in governmental and military applications for field analysis of air samples. Also performed design of microfluidic cartridges and valving systems for simplified flow patterns.

NASA Lewis Research Center Brookpark, OH

Research Assistant June 1994 - Aug. 1994

Performed materials characterization on carbon fiber-reinforced ceramic composites. Performed heat treatments, mechanical testing of bulk specimens, and microscopic testing of fiber-matrix interfacial characteristics.


Case Western Reserve University Cleveland, OH

Research Assistant June 1991 – May 1994



Electrical Engineering and Applied Physics, Materials Science and Engineering

Performed research on operational dynamics of electrostatic micromotors. Studied the tribology of silicon micromotors according to the operational parameters, using both electrostatic and pneumatic actuation. Assisted graduate students with materials characterization and electron microscopy. Assisted graduate students on research, including operation of micromotors in dielectric fluids.




Research Funding


  • USDA/Nat. Inst. Food & Ag., “Enhanced stability and targeted delivery of microencapsulated anthocyanins for improved food quality and human health,” ($500k total) PI: Kaletunc, Co-PIs: Hansford, Giusti, Failla, 12/15/11 – 12/14/15.

  • NSF NSEC fellowship, “CANPBD: Nanopumps and microfluidics for controlled chemical release and cellular labeling,” (PI: L. James Lee, Hansford subaward of $520k for fellowship), 9/1/04-8/31/14

  • AFOSR MURI ($5,250,000, P.I.—Ken Sandhage original PI, transferred to Hansford for administrative reasons) “Genetically Engineered Microdevices (GEMs) with Tailored 3-D Shapes, Nanoscale Features, and Chemistries”, Co-P.I.s: Kenneth Sandhage (GaTech), A. Terrence Conlisk (OSU ME), Robert Rapp (OSU MSE), Morley Stone (AFRL), Rajesh Naik (AFRL), Brian Palenik (UCSD), and Mark Hildebrand (Scripps Institute) 8/1/03-1/31/10

  • NSF IGERT fellowship, “Polymer MEMS for cell force measurement,” (P.I.: L. James Lee, Hansford subaward of $92,500 for N. Ferrell fellowship), 12/1/03-11/30/08

  • NSF Connection One Center (supported by Raytheon, $105k), “3D printing on high contrast composites,” (PI: Volakis, sub-award to Hansford), 10/1/05-9/31/08

  • MacAuley-Brown, Inc. (subcontract from AFOSR, $45 for Hansford portion), “Structurally integrated reconfigurable antennas on BAT UAV & design of conformal antenna system for small UAVs,” (Roberto Rojas, P.I.) 7/1/07-6/30/08

  • BerrieHill Research Corp. (subcontract from AFOSR SBIR, $33k), “Improved radio frequency (RF) polymer substrates for antennas,” (P.I.: Kubilay Sertel, Co-PIs: Hansford and Volakis), 7/1/07-12/31/07

  • NIH R44 sub-award ($150,000, P.I.), “Polymer nanochannels for high throughput drug screening” portion of “Label-Free High-Throughput Screening Platform,” awarded to Biopraxis, Inc. (San Diego, CA), 6/1/06-5/31/07

  • OSU Office of Research Large Interdisciplinary Grant Development Program ($125,000, P.I.), “Engineered nanostructures for next generation clinical chemistry,” Co-P.I.s: Michael Bissell, A. Terrence Conlisk, Sherwin Singer, 10/1/04 – 9/30/06

  • Colciencias (Colombian Science Ministry) ($88,000 US) “Potential Applications of Portland cement as a load bearing bone substitute materials, Phase II: Development of Bioactive bone substitutes, based on modified Portland cement porous structures”, P.I.: Daniel Gallego-Perez (School of Engineering of Antioquía (EIA), Medellín, Colombia; The Ohio State University), Co-PIs: Derek J. Hansford and Ernesto Lopez (School of Health Sciences (CES), Medellín, Colombia)

  • “NIRT: Robust Manufacturing Protocol for Particulate-like Nanoporous Micro-devices (NMDs) for Biomedical and Biochemical Applications” (L. James Lee, P.I., $750,000), Co-P.I.s: Derek J. Hansford, James Rathman, C. H. Menq, L. S. Fan, 9/1/03-8/31/06

  • Ohio MicroMD MicroGrant program ($46,500, P.I.), “Fabrication of surface micro-electrode array to monitor the human brain”, Co-P.I.s: David Q. Beversdorf and Joseph Kitzmiller, 5/1/03-4/30/04

  • DARPA BAA 00-011 SymBioSys ($900,000, P.I.) “Experimental and Theoretical Development of Bio-Fluid Transport Models through Nano- and Micro-fluidic Components”, Co-P.I.s: A. Terrence Conlisk, Michael Bissell, Shuvo Roy (Cleveland Clinic), Aaron Fleischman (CCF), 7/1/00-6/30/03

  • DARPA BAA 00-011 SymBioSys ($796,000, A. Terrence Conlisk P.I. Co-P.I.) “Bio-Fluid Transport Models”, Co-P.I.s: Derek J. Hansford, Minami Yoda (GaTech), J. Michael Ramsey (Oak Ridge NL), 1/1/02-6/30/03

  • “Micro-fabricated Natural Killer Cells for the Detection and Treatment of Metastatic Tumors”, NCI Unconventional Innovations Program, ($2,100,000 overall award, Frank Martin, P.I., $200,000 subcontract from iMEDD, Inc. (Co-P.I.)), 7/17/01-12/31/02

  • “Ohio MicroMD: The Ohio BioMEMS Consortium on Medical Therapeutic Microdevices”, Hayes Investment Fund (Ohio Board of Regents) ($2,100,000 of equipment, Co-P.I.)

  • American Cancer Society 2000 Institutional Research Grant ($15,000, P.I.) “Nanopore-based Treatment of EBV Associated PTLD”, 11/1/00-10/31/01

  • OSU University Seed Grant ($26,000 plus Tuition and Fees for GRA, P.I.) “Investigation of Evaporated Titanium as a Sacrificial Layer for Polymer Micromachining”, 12/15/99-12/14/00



Research Interests


Polymer microfabrication, MEMS, tool development for the investigation of individual cells and cell clusters, biomedical microdevices, nanochannels for biomolecular manipulation, organic electronics, micro/ nanofluidic clinical chemistry assay development, microdevice assembly techniques, biofluid dynamics in micro/ nanofluidics, biocompatibility, biomaterials, tissue/cell/material interactions, tissue engineering scaffold materials, interfacial electrochemistry, design of microdevices for measurement of biological parameters

Publications (names in bold are myself or my students, *indicates equal authorship)


Book Chapters

  1. A Peláez-Vargas, D Gallego-Pérez, N Higuita-Castro, A Carvalho, L Grenho, JA Arismendi, MH Fernandes, MP Ferraz, DJ Hansford, FJ Monteiro. “Micropatterned coatings for guided tissue regeneration in dental implantology.” in Cell Interaction, S Gowder, Ed., InTech, Chap. 11, pp. 273-302. 2012.

  2. A Peláez-Vargas*, D Gallego-Pérez*, D Gomez, MH Fernandes, D Hansford, FJ Monteiro. Propagation of Human Bone Marrow Stem Cells for Craniofacial Applications. In: Stem Cells and Cancer Stem Cells (Vol. 7): Therapeutic Applications in Disease and Injury. Edited by M. A. Hayat. Springer. Chap. 10, pp. 107-122. 2012.

  3. M Ferrari, D Friend, D Hansford, SS Kulkarni, F Martin. “Medical therapy: The next frontier of biochip and biomedical nanotechnology.” in Biochips: Technology and Applications. W-L Xing and J Cheng, Eds. Springer, ISBN:3540004238, pp. 11-34, 2003.

  4. D Hansford, T Desai, and M Ferrari. “Nano-scale size-based biomolecular separation technology.” in Biochip Technologies. L. Kricka and J. Cheng, Eds. Harwood Academic Publishers, GmbH, pp. 341-362, 2001.


Journal Articles

  1. D Gallego-Perez*, L Chang*, J Shi, J Ma, SH Kim, X Zhao, V Malkoc, X Wang, M Minata, KJ Kwak, Y Wu, G Lafyatis, W Lu, DJ Hansford, I Nakano, LJ Lee, “On-chip clonal analysis of glioma stem cells motility and therapy resistance.” Nano Letters, 2016.

  2. A Carvalho, A Pelaez-Vargas, DJ Hansford, MH Fernandes, FJ Monteiro, “Effects of line and pillar array microengineered SiO2 thin films on the osteogenic differentiation of human bone marrow-derived mesenchymal stem cells,” Langmuir, 32(4): 1091-1100, 2016.

  3. V Malkoc, D Gallego-Perez, T Nelson, JJ Lannutti, DJ Hansford, “Controlled neuronal cell patterning and guided neurite growth on micropatterned nanofiber platforms,” Journal of Micromechanics and Microengineering, 25: 125001 (11pp), 2015.

  4. M Gomez-Aranzadi, S Arana, M Mujika, DJ Hansford, “Integrated microstructures to improve surface-sample interaction in planar biosensors,” IEEE Sensors Journal, 15(2):1216-1223, 2015.

  5. N Higuita-Castro, C Mihai, DJ Hansford, S Ghadiali, “Influence of airway wall compliance on epithelial cell injury and adhesion during interfacial flows,” Jo Applied Physiology, 17(11):1231-1242, 2014.

  6. A Benevente-Babace, D Gallego-Pérez, DJ Hansford, S Arana, E Pérez-Lorenzo, M Mujika, “Single-cell trapping and selective treatment via co-flow within a microfluidic platform,” Biosensors and Bioelectronics, 61: 298-305, 2014.

  7. M Laranjeira, A Carvalho, A Pelaez-Vargas, DJ Hansford, MP Ferraz, S Coimbra, E Costa, A Santos-Silva, MH Fernandes, FJ Monteiro, “Modulation of human dermal microvascular endothelial cell and human gingival fibroblast behavior by micropatterned silica coating surfaces for zirconia dental implant applications,” Sci. Technol. Adv. Mater. 15: 025001 (11pp), 2014.

  8. Y Min, Y Yang, Y Poojari, Y Liu, JC Wu, DJ Hansford, AJ Epstein, "Sulfonated polyaniline-based organic electrodes for controlled electrical stimulation of human osteosarcoma cells," Biomacromolecules, 14(6): 1727-31, 2013.

  9. B Dinan, D Gallego-Perez, H Lee, DJ Hansford, SA Akbar, “Thermally grown TiO2 nanowires for improving cell growth and proliferation on titanium based materials,” Ceramics International, 39(5): 5949-54, 2013.

  10. A Peláez-Vargas*, D Gallego-Perez*, A Carvalho, MH Fernandes, DJ Hansford, FJ Monteiro, “Effects of density of anisotropic micro-stamped silica thin films on guided bone tissue regeneration – In vitro study,” Jo Biomed Matls Res B, 101B(5):762-69, 2013.

  11. Z Fei, Y Wu, S Sharma, D Gallego-Perez, N Higuita-Castro, DJ Hansford, JJ Lannutti, LJ Lee, “Gene delivery to cultured embryonic stem cells using nanofiber-based sandwich electroporation,” Analytical Chemistry, 85: 1401-1407, 2013.

  12. N Higuita-Castro, D Gallego-Perez, K Love, MR Sands, G Kaletunc, DJ Hansford, “Soft Lithography-based fabrication of biopolymer microparticles for nutrient microencapsulation,” Industrial Biotechnology, 8:365-71, 2012.

  13. A Carvalho, A Peláez-Vargas, D Gallego-Perez, L Grenho, MH Fernandes, AH De Aza, MP Ferraz, DJ Hansford, FJ Monteiro, "Micropatterned silica thin films with nanohydroxyapatite micro-aggregates for guided tissue regeneration," Dental Materials, 28(12): 1250-1260, 2012.

  14. D Gallego-Perez, N Higuita-Castro, L Denning, J DeJesus, K Dahl, A Sarkar, DJ Hansford, “Microfabricated mimics of in vivo structural cues for the study of guided tumor cell migration,” Lab on a Chip, 12: 4424-4432, 2012.

  15. D Gallego-Perez, N Higuita-Castro, RK Reen, M Palacio-Ochoa, S Sharma, LJ Lee, JJ Lannutti, DJ Hansford, KJ Gooch, “Micro/nanoscale technologies for the development of hormone-expressing islet-like cell clusters,” Biomedical Microdevices, 14(4): 779-789, 2012.

  16. N Higuita-Castro, D Gallego-Perez, A Pelaez-Vargas, F García Quiroz, OM Posada, LE López, CA Sarassa, P Agudelo-Florez, FJ Monteiro, AS Litsky, DJ Hansford, “Reinforced Portland cement porous scaffolds for load- bearing bone tissue engineering applications,” Jo Biomed Matls Res B, 100B(2): 501-507, 2012.

  17. N Ferrell, J Woodard, DJ Hansford, “Measurement of cell forces using a microfabricated polymer cantilever sensor,” Sensors and Actuators A, 170(1-2): 84-89, 2011.

  18. HM Borteh, NJ Ferrell, RT Butler, SV Olesik, DJ Hansford, “Peptide-induced patterning of gold nanoparticle thin films,” Applied Surface Science, 258(1): 230-235, 2011.

  19. D Gallego-Perez, N Higuita-Castro, F García Quiroz, OM Posada, LE López, AS Litsky, DJ Hansford, “Portland cement for bone tissue engineering: effects of processing and metakaolin blends,” Jo Biomed Matls Res B, 98B(2): 308-315, 2011.

  20. Y Yang, YG Min, JC Wu, DJ Hansford, SE Feinberg, AJ Epstein, “Synthesis and characterization of cytocompatible sulfonated polyanilines,” Macromol Rap Comm, 32(12): 887-892, 2011.

  21. A Peláez-Vargas, D Gallego-Perez, M Magallanes, MH Fernandes, DJ Hansford, A de Aza-Helena, P Pena Castro, FJ Monteiro, “Isotropic micropatterned silica coatings on zirconia induce guided cell growth for dental implants,” Dental Materials, 27(6): 581-589, 2011.

  22. A Peláez-Vargas, D Gallego-Perez, N Ferrell, MH Hernandes, DJ Hansford, FJ Monteiro, “Early spreading and propagation of human bone marrow stem cells on isotropic and anisotropic topographies of silica thin films produced via microstamping,” Microscopy and Microanalysis, 16(6): 670-6, 2010.

  23. D Gallego-Perez, N Ferrell, N Higuita-Castro, DJ Hansford, “Versatile methods for the fabrication of polyvinylidene fluoride microstructures,” Biomedical Microdevices, 12(6): 1009-1017, 2010.

  24. N Ferrell, Y Yang, DJ Hansford, “Micropatterning of sulfonated polyaniline using a soft lithography based lift-off process,” Microsystems Technologies, 16(11): 1951-56, 2010.

  25. S Sabbani, D Gallego, A Nagy, WJ Waldman, DJ Hansford, PK Dutta, “Synthesis of micropatterned silver-zeolite films and its application as an antimicrobial substrate,” Microporous & Mesoporous Materials, 135(1-3): 131-136, 2010.

  26. F García, D Gallego, N Higuita, OM Posada, C Sarassa, DJ Hansford, P Agudelo, LE López, “Housekeeping gene stability influences the quantification of osteogenic markers during stem cell differentiation to the osteogenic lineage,” Cytotechnology, 62(2):109-120, 2010.

  27. D Gallego-Perez, N Higuita-Castro, S Sharma, RK Reen, AF Palmer, KJ Gooch, LJ Lee, JJ Lannutti, DJ Hansford, “High throughput assembly of spatially controlled 3D cell clusters on a micro/nano platform,” Lab on a Chip, 10: 775 – 782, 2010.

  28. N Ferrell, D Gallego, N Higuita, RT Butler, R Reen, KJ Gooch, DJ Hansford, “Vacuum assisted cell seeding in a microwell cell culture system,” Analytical Chemistry, 82(6): 2380-2386, 2010.

  29. J Xian, M Dapino, D Gallego-Perez, DJ Hansford, “Microphone based on Polyvinylidene Fluoride (PVDF) micro-pillars and patterned electrodes,” Sens. & Act. A: Phys, 153: 24-32, 2009.

*in ScienceDirect “Top 25 Hottest Articles” for journal April-June 2009.

  1. S Schwann, N Ferrell, DJ Hansford, U Spohn, A Heilmann, “Measurement of mechanical forces generated by plant P-protein aggregates (forisomes),” Europ Biophys Jo, 38(4): 533-536, April, 2009.

  2. *A Pelaez-Vargas, N Ferrell, MH Fernandes, DJ Hansford, and FJ Monteiro, “Cells spreading on micro-fabricated silica thin film coatings,” Microscopy and Microanalysis, 15 (Suppl. 3): 77-78, 2009.

  3. R Butler, N Ferrell, R Naik, DJ Hansford, “Soft-lithography-mediated microscale patterning of silica on diverse substrates,” Journal of Materials Research, 24(5):1632-38, 2009.

  4. A Pelaez-Vargas, N Ferrell, MH Fernandes, DJ Hansford, FJ Monteiro, “Cellular alignment induction during early in vitro culture stages using micropatterned glass coatings produced by sol-gel process,” Key Engineering Materials, 396-398: 303-306, 2009.

  5. A Bednarski Spiwak, A Horbal, R Leatherbury, DJ Hansford, “Extracorporeal tubing in the roller pump raceway: Physical changes and particulate generation,” Jo Extracorp Tech, 40(3):188-92, 2008.

  6. D Gallego-Perez, N Higuita-Castro, F Garcia, N Ferrell, and DJ Hansford, “Bioactive coatings on Portland cement substrates: Surface precipitation of Apatite-like crystals,” Materials Science and Engineering C, 28: 353-358, 2008.

  7. D Gallego-Perez, N Ferrell, Y Sun, and DJ Hansford, “Multilayer micromolding of degradable polymer tissue engineering scaffolds,” Materials Science and Engineering C, 28: 347-352, 2008.

  8. N Ferrell, J Woodard, and DJ Hansford, “Fabrication of polymer microstructures for MEMS: Sacrificial Layer Micromolding (SLaM) and Patterned Substrate Micromolding (PSM),” Biomedical Microdevices, 9: 815-821, 2007.

  9. M Palacio, B Bhushan, N Ferrell, and DJ Hansford, “Adhesion properties of polymer/silicon interfaces for biological micro-/nanoelectromechanical systems applications,” Jo Vac Sci Tech A, 25(4): 1275-84, 2007.

  10. J Kitzmiller, DJ Hansford, L Fortin, K Obrietan, V Bergdall, and D Beversdorf, “Micro-field evoked potentials recorded from the porcine sub-dural cortical surface utilizing a micro-electrode array,” Jo Neuroscience Methods, 162(1-2): 155-161, 2007.

  11. N Ferrell and DJ Hansford, “Fabrication of micro- and nanoscale polymer structures by soft lithography spin dewetting,” Macromolecules Rapid Communications, 28(8): 966-971, 2007.

  12. M Palacio, B Bhushan, N Ferrell, and D Hansford, “Nanomechanical characterization of polymer beam structures for BioMEMS applications,” Sensors and Actuators A, 135(2): 637-650, 2007.

  13. J Guan, LJ Lee, and DJ Hansford, “Fabrication of particulate-like polymer microstructures for drug delivery by soft lithography,” Small, 3 (3): 412-418, 2007.

  14. J Guan, N Ferrell, B Yu, DJ Hansford, and LJ Lee, “Simultaneous fabrication of hybrid arrays of nanowires and micro/nanoparticles by dewetting on micropillars,” Soft Matter, 3(11): 1369-1371, 2007. *cover image*

  15. S Koulouridis, G Kiziltas, Y Zhou, D Hansford, and J Volakis, “Polymer-ceramic composites for microwave applications: Fabrication and performance assessment,” IEEE Trans. Microwave Theory and Techniques, 54 (12): 4202-4208, 2007.

  16. R Butler, N Ferrell, and DJ Hansford, “Spatial and geometrical control of silicification using a patterned poly-L-lysine template”, Applied Surface Science, 252: 7337-7342, 2006.

  17. J Guan, N Ferrell, LJ Lee, and DJ Hansford, “Fabrication of polymeric microparticles for drug delivery by soft lithography,” Biomaterials, 27: 4034-4041, 2006.

  18. B Bhushan, DJ Hansford, and KK Lee, “Surface modification of silicon and PDMS surfaces with vapor phase deposited ultrathin fluorosilane films for biomedical nanodevices,” Journal of Vacuum Science and Technology A, 24:4, pp. 1197-1202, July/Aug. 2006.

  19. J Kitzmiller, DQ Beversdorf, and DJ Hansford, “Microfabrication of microelectrode arrays for neural column potentiometry”, Biomedical Microdevices, 8, pp. 81-85, 2006.

  20. J Guan, H He, DJ Hansford, and LJ Lee, “Self-folding of three-dimensional hydrogel microstructures,” Journal of Physical Chemistry B: Condensed Matter, Materials Surfaces, Interfaces, and Biophysics, 109:49, pp. 23134-7, Dec. 15, 2005.

  21. J Guan, A Chakrapani, and DJ Hansford, “Polymer microparticles fabricated by soft lithography,” Chemistry of Materials, 17:25, pp. 6627-6629, 2005.

  22. KK Lee, B Bhushan, and DJ Hansford, “Vapor phase deposition of fluoropolymers and fluorosilanes for nanochannel applications,” Journal of Vacuum Science and Technology A, 23:4, pp. 804-810, July/August 2005.

  23. G Wei, B Bhushan, N Ferrell, and DJ Hansford, “Nanomechanical characterization of materials for Polymer MEMS applications,” Journal of Vacuum Science and Technology A, 23:4, pp. 811-819, July/August 2005.

  24. Z Zheng, DJ Hansford, and AT Conlisk, “Effect of multivalent ions on electroosmotic flow in micro and nanochannels,” Electrophoresis, Vol. 24, No. 17, pp. 3006-3017, 2003.

  25. AT Conlisk, J McFerran, Z Zheng, and D Hansford, “Mass transfer and flow in electrically charged micro- and nanochannels,” Analytical Chemistry, Vol. 74 (9), pp.2139-50, 2002.

  26. T Desai, D Hansford, L Leoni, M Essenpreis, and M Ferrari, “Nanoporous anti-fouling silicon membranes for implantable biosensor applications,” Biosensors and Bioelectronics, Vol. 15 (9-10), pp. 453-462, 2000.

  27. TA Desai, DJ Hansford, and M Ferrari, “Micromachined interfaces: new approaches in cell immunoisolation and biomolecular separation,” Biomolecular Eng., Vol. 17 (1), 23-26, 2000.

  28. TA Desai, DJ Hansford, L Kulinsky, AJ Nashat, G Rasi, JK Tu, Y Wang, M Zhang, and M Ferrari, "Nanopore technology for biomedical applications," Biomedical Microdevices, Vol. 2 (1), 11-40, 2000.

  29. T Desai, D Hansford, and M Ferrari. “Characterization of Micromachined Membranes for Immunoisolation and Bioseparation Applications.” Jo. Membrane Sci. Vol. 4132. pp. 1-11. 1999.

  30. P Belgrader, D Hansford, GTA Kovacs, K Venkateswaren, F Milanovich, S Nasarabadi, R Mariella, M Okuzumi, F Pourahmadi, and MA Northrup. A minisonicator to rapidly disrupt bacterial spores. Analytical Chemistry, Vol. 71 (19). pp. 4232-4236, 1999.


Patents and patent applications

  1. M Essenpreis, TA Desai, M Ferrari, and DJ Hansford, “Implantable Analyte Sensor,” U.S. Patent US6,405,066, June 11, 2002.

  2. J Guan, DJ Hansford, and LJ Lee, “Self-Folding Polymer Microparticles,” U.S. Patent US7,364,675, April 29, 2008.

  3. DJ Hansford, RJ Walzcak, AA Boiarski, AT Conlisk, “Nanopump Devices and Methods,” U.S. Patent No. 7,799,197, September 21, 2010.

  4. AJ Epstein, SE Feinberg, DJ Hansford, Y Yang, “Electrical stimulation of cell and tissue growth with two- and three-dimensionally patterned electrodes,” US Patent No. 8,478,422, July 2, 2013.

  5. DJ Hansford, J Schley, D Gallego-Perez, “Femto-pumps: System for parallel, micro-localized, controlled delivery of femtoliters of chemistry,” US Patent filed Sept. 27, 2013.


Regional Journal Articles

  1. DJ Hansford, “Microfabricated nanochannels: new tools for molecular motion control,” Revista Ingeniería Biomédica, 3(5):95-100, 2009.

  2. GF Quiroz, OM Posada, D Gallego, N Higuita, C Sarassa, DJ Hansford, P Agudelo-Florez, LE López, “Isolation of human bone marrow mesenchymal stem cells and evaluation of their osteogenic potential. Revista Ingeniería Biomédica, 2(3):48–55, 2008.

  3. N Higuita-Castro, DJ Hansford, “Mechanical characterization of cells and tissues at the micro scale,” Revista Ingeniería Biomédica, 2(3): 56-64, 2008.

  4. D Gallego-Perez, LE Lopez, DJ Hansford, J Klemas, “El cemento portland y su potencial uso en ingeniería de tejido óseo. Fase I: estudios de biocompatibilidad-efectos del hidróxido de calico” translation:“Potential applications of portand cement on bone tissue engineering. Phase I: biocompatibility studies – calcium hydroxide effects,” Revista Ingeniería Biomédica, 1(3): 21-30, 2006.

  5. D Gallego-Perez, DJ Hansford, “Engineering materials surfaces by microfabrication techniques to regulate in vitro cell functions: A review,” Revista Ingeniería Biomédica, 2(3): 56-64, 2005.


Submitted/under review/in preparation articles

  1. H Borteh, Y Cai, R Naik, KH Sandhage, DJ Hansford, “Peptide-induced patterning of crystalline calcium molybdate particles,” in preparation.

  2. N Pussadee, DJ Hansford, “Fabrication of polydimethylsiloxane nanochannels using sacrificial layer lithography,” in preparation.

  3. N Pussadee, DJ Hansford, “Aligned micro/nanofluidic devices fabricated using sacrificial layer lithography and PDMS reactive ion etching,” in preparation.


Refereed Proceedings and Abstracts

Published in journals

  1. A Carvalho, A Pelaez-Vargas, D Gallego-Perez, MH Fernandes, DJ Hansford, FJ Monteiro. Micropatterned bioactive thin films for guided bone regeneration. Ann. Meet Swiss Soc. Biomatls, published in European Cell Material, 23 (Suppl 2): 13, 2012.

  2. A Pelaez-Vargas, D Gallego-Perez, MH Fernandes, D Hansford, FJ Monteiro, Microstructured coatings to study the behavior of osteoblast-like cells on hard materials, 3rd Joint Meeting of the European Calcified Tissue Society & the International Bone and Mineral Society, Athens, Greece, May 2011, published in Bone, 48 (S2): S105-S106, 2011.

  3. A Carvalho, A Pelaez-Vargas, D Gallego-Perez, MH Fernandes, D Hansford, FJ Monteiro, Adhesion and proliferation of mesenchymal stem cells on micropatterned thin films modified with nanohydroxyapatite particles, 3rd Joint Meeting of the European Calcified Tissue Society & the International Bone and Mineral Society, Athens, Greece, May 2011, published in Bone, Volume 48 (S2): S106, 2011.

  4. N Higuita-Perez, C Mihai, DJ Hansford, SN Ghadiali, “Influence of airway wall compliance on epithelial cell injury during cyclic airway reopening,” Experimental Biology Meeting, Washington, DC, Apr. 9-13, 2011, published in FASEB Jo, 25, 2011.

  5. A Pelaez-Vargas, D Gallego-Perez, N Higuita-Castro, DJ Hansford, FJ Monteiro, “Zirconia microtextured surfaces using soft lithography.” 88th General Session of Internat Assoc Dental Res, published in Jo Dent Res, 89(B): 4004, July 17, 2010.

  6. A Pelaez-Vargas, D Gallego-Perez, N Higuita-Castro, DJ Hansford, FJ Monteiro, “Microstamped silica films on curved zirconia surfaces.” 88th General Session of Internat Assoc Dental Res, published in Jo Dent Res, 89(B): 4005, July 17, 2010.

  7. A Pelaez-Vargas, D Gallego-Perez, MH Fernandes, DJ Hansford, FJ Monteiro, “Anisotropic microtextured silica thin films on zirconia.” 88th General Session of Internat Assoc Dental Res, published in Jo Dent Res, 89(B): 1391, July 15, 2010.

  8. A Pelaez-Vargas, N Ferrell, MH Hernandes, DJ Hansford, FJ Monteiro, “Shape control and orientation of HBM Cells on micropatterned coatings,” 86th General Session of Internat Assoc Dental Res, published in Jo Dent Res, 87(SpecIssueB):1081, 2008.


Published in proceedings or abstract books

  1. A Benavente-Babace, S Arana, DJ Hansford, E Pérez-Lorenzo, M Mujika, “Novel Fabrication and Operation of Microfluidic Platforms for On-Chip Single Cell Isolation and Bioanalysis,” 6th European Conference of the International Federation for Medical and Biological Engineering, Dubrovnik, Croatia, pp 318-321, DOI: 10.1007/978-3-319-11128-5_79, 2014.

  2. M Gomez-Aranzadi, M Mujika, S Arana, DJ Hansford, “Microchannel modification to enhance the sensitivity in biosensors,” 13th Mediterranean Conf Med Bio Engineering (MEDICON 2013), Seville, Spain, Sept. 25-28, IFMBE Proc. 41: 852-855, 2013.

  3. Gallego-Pérez D, Ma J, Sunghak K, Zhao X, Kwak K, Mao P, Wu Y, Hansford DJ, Nakano I, Lee LJ, “Probing the migratory behavior of patient-derived glioma stem cells on a micro-engineered platform – a single cell analysis,” Biomedical Engineering Society Meeting, Seattle, WA, September 2013. (oral)

  4. A Benavente-Babace, D Gallego-Pérez, DJ Hansford, S Arana, E Pérez-Lorenzo, M Mujika, “A versatile microfabricated platform for single-cell studies,” 13th Mediterranean Conf Med Bio Engineering (MEDICON 2013), Seville, Spain, Sept. IFMBE Proc. 41: 25-28, 2013.

  5. Liu YD, Yang YY, Poojari Y, Hansford DJ, Min Y, “Synthesis of end-group capped sulfonated polyaniline-based organic electrodes for human osteosarcoma cells,” 245th Nat’l Spring Meeting of Amer Chem Soc, New Orleans, LA, April 7-11, 2013.

  6. Gallego-Perez D, Kwak K, Wu Y, Wang X, Ma J, Boukany P, Li L, Mao P, Eubank T, Nakano I, Lafyatis G, Hansford DJ, Lannutti JJ, Lee LJ. On-chip capture/sorting and characterization of cancerous cells. Biomedical Engineering Society Meeting, Atlanta, GA, November 2012. (oral)

  7. M Gomez-Aranzadi, M Mujika, S Arana, DJ Hansford, “Diseño de un bioMEMS con un sensor magnetorresistivo integrado,” XXIX Congreso Annual de la Sociedad Española de Ingenieria Biomédica (CASEIB), Caceres, Spain, Nov. 16-18, 2011.

  8. V Malkoc, D Gallego-Perez, J Johnson, JJ Lannutti, DJ Hansford. Micropatterning neuronal networks on nanofiber platforms. Biomedical Engineering Society Meeting, Hartford, CT, October 2011.

  9. Gallego-Perez D, Higuita-Castro N, Reen RK, Palacio-Ochoa M, Sharma S, Lee LJ, Lannutti JJ, Hansford DJ, Gooch KJ. Micro/Nanoengineering hormone-expressing islet-like tissue subunits. Biomedical Engineering Society Meeting, Hartford, CT, October 2011.

  10. Gallego-Perez D, Higuita-Castro N, Denning L, DeJesus J, Dahl K, Sarkar A, Hansford D. Guided tumor cell migration on microscale mimics of contact guidance cues. Biomedical Engineering Society Meeting, Hartford, CT, October 2011.

  11. KJ Kwak, B Yu, K Gao, D Gallego-Perez, DJ Hansford, LJ Lee, “Tethered bilayer liposome nanoparticle microarray for sensing cell-lipoplex interaction,” AICHE Annual Meeting, Salt Lake City, UT, Nov. 7-12, 2010.

  12. D Gallego-Perez, N Higuita-Castro, JJ Lannutti, KJ Gooch, DJ Hansford, “Micropatterning and printing of functional microscale tissue subunits on nanofibrous scaffolds,” Biomedical Engineering Society Meeting, Austin, TX, Oct. 2010.

  13. D Gallego-Perez, N Higuita-Castro, R Reen, M Palacio-Ochoa, S Sharma, LJ Lee, JJ Lannutti, DJ Hansford, KJ Gooch, “Guided assembly of insulin-expressing islet-like cell clusters on polymeric micro/nanowells,” Biomedical Engineering Society Meeting, Austin, TX, Oct. 2010.

  14. M Palacio-Ochoa, D Gallego-Perez, N Higuita-Castro, J Johnson, JJ Lannutti, KJ Gooch, DJ Hansford, “Evaluation of electrospun scaffolds for the expansion of precursors of insulin-producing cells,” Biomedical Engineering Society Meeting, Austin, TX, Oct. 2010.

  15. J Xu, MJ Dapino, D Gallego-Perez, DJ Hansford, “Validation and characterization of an acoustic sensor based on PVDF micropillars and patterned electrodes,” 3rd Ann. Meeting ASME/AIAA Smart Materials, Adaptive Structures, & Intelligent Systems, Philadelphia, PA, Sept. 2010.

  16. N Ferrell, J Woodard, D Gallego-Perez, N Higuita-Castro, DJ Hansford, “Polymer MEMS for measuring single cell forces,” Abs. DETC2010-29047, ASME 2010 Internat Des Eng Tech Conf (IDETC) and Comp Info Eng Conf (CIE), Montreal, QC, Canada, August 15-19, 2010.

  17. A Pelaez-Vargas, N Higuita-Castro, D Gallego-Perez, DJ Hansford, FJ Monteiro, “Portland particulated silica coatings – Comparison between two coating techniques.” 88th General Session of Internat Assoc Dental Res, published in Jo Dent Res, 89: 4006, July 17, 2010.

  18. N Higuita-Castro, Y Huang, C Mihai, DJ Hansford, SN Ghadiali, “Influence of wall compliance on epithelial cell structure and injury during airway reopening,” Proc. ASME Summer Bioeng. Conf., Naples, FL, pp. 933-934, June 16-19, 2010.

  19. A Pelaez-Vargas, LF Restrepo, MH Fernandez, MP Ferraz, DJ Hansford, FJ Monteiro, “HGF adhesion on modified surfaces of zirconia based framework cores,” MRS Fall Meeting, Boston, MA, Abs. SS5.29, Nov. 30-Dec. 2, 2009.

  20. A Pelaez-Vargas, D Gallego-Perez, MH Fernandes, DJ Hansford, FJ Monteiro, “Micro-Structured Silica Coatings with HA Particles Using a PDMS Stamp. MRS Fall Meeting, Boston, MA, Abs. VV8.9, Nov. 30-Dec. 2, 2009.VV8.9.

  21. D Gallego-Perez, D Michalec, A Pelaez-Vargas, N Higuita-Castro, FJ Monteiro, MJ Miller, DJ Hansford, “Layer-by-Layer Microassembly of Multifunctional Bone Tissue Engineering Scaffolds,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, OP-9-3-12C, Oct. 7-10, 2009.

  22. D Gallego-Perez, N Higuita Castro, S Sharma, J Johnson, LJ Lee, JJ Lannutti, DJ Hansford, “Combination of Micro- and Nanofabricated Structures for the Production of Biomimetic Tissue Engineering Scaffolds,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, Abs. PS-10A-9, Oct. 7-10, 2009.

  23. A Pelaez-Vargas, D Gallego-Perez, N Higuita-Castro, N Ferrell, DJ Hansford, FJ Monteiro, “Silica Coatings with Portland Cement Particles for Dental Implant Surfaces Based on Sol-Gel Micromolding,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, Abs. PS-10A-23, Oct. 7-10, 2009.

  24. N Higuita-Castro, D Gallego-Perez, RK Reen, S Sharma, LJ Lee, JJ Lannutti, KJ Gooch, DJ Hansford, “Controlled Pancreatic Cluster Formation on a Bed of Electrospun Fibers,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, Abs. PS-10A-203, Oct. 7-10, 2009.

  25. E Apaydin, J Schley, D Hansford, “Flexible subdural microelectrode arrays for cortical column potential monitoring,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, Abs. PS-9B-145, Oct. 7-10, 2009.

  26. N Higuita-Castro, D Gallego-Perez, L Denning, A Sarkar, DJ Hansford, “Polymer microraceways for characterization of glioblastoma cell migratory patterns,” Biomed. Eng. Soc. Annual Meeting, Pittsburgh, PA, Abs. PS-8A-78, Oct. 7-10, 2009.

  27. A Pelaez-Vargas, D Gallego-Perez, N Ferrell, MH Fernandes, DJ Hansford, M Magallanes-Perdomo, A DeAza, P Pena, FJ Monteiro. “Microfabricated SiO2 Thin Films on Structural Dental Ceramics,” Proc. Bioceramics, 22:779-782, 2009.

  28. D Gallego, N Higuita, S Sharma, R Reen, KJ Gooch, LJ Lee, JJ Lannutti, DJ Hansford, “High throughput assembly of spatially controlled microscale tissue subunits,” Society for Biomaterials Meeting, San Antonio, TX, Apr. 2009.

  29. N Higuita, D Gallego, S Sharma, LJ Lee, JJ Lannutti, DJ Hansford, “Bioactive Portland cement porous scaffolds,” Society for Biomaterials Meeting, San Antonio, TX, Apr. 2009.

  30. J Xu, M Dapino, D Gallego-Perez, DJ Hansford, “Design and micro-fabrication of a PVDF acoustic sensor,” SPIE Smart Structures/Non-Destructive Evaluation, San Diego, CA, Abs. 7290-9, Mar. 8-12, 2009.

  31. C Wongwanitwattana and DJ Hansford, “Direct measurement of biomolecular affinity to modified PDMS surface using AFM,” AsiaNANO 2008, Singapore, Nov. 3-6, 2008.

  32. J Xian, M Dapino, D Gallego-Perez, DJ Hansford, “Acoustic sensor with PVDF micro-pillars and patterned electrodes,” Proc. ASME Conf. Smart Materials, Adaptive Structures and Intelligent Systems, Ellicot, MD, Oct. 28-30, 1: 721-727, 2008.

  33. N Ferrell, D Gallego, N Higuita, R Butler, R Reen, K Gooch, DJ Hansford, “Microwell cell traps for high throughput cell isolation,” Biomed. Eng. Soc. Annual Meeting, St. Louis, MO, Abs. P6.83, Oct. 2-4, 2008.

  34. F Garcia-Quiroz, O Posada, D Gallego, N Higuita, DJ Hansford, P Agudelo-Florez, and L Lopez, “Simultaneous evaluation of cell proliferation and gene expression via MTT-coupled real-time RT-PCR,” Biomed. Eng. Soc. Annual Meeting, St. Louis, MO, Abs. P6.41, Oct. 2-4, 2008.

  35. R Reen, D Gallego, N Higuita, N Ferrell, S Sharma, LJ Lee, JJ Lannutti, DJ Hansford, and K Gooch, “Spatially Controlled Aggregation of Pancreatic Cells in Microfabricated Wells on Polymer Membranes,” Biomed. Eng. Soc. Annual Meeting, St. Louis, MO, Abs. P5.139, Oct. 2-4, 2008.

  36. D Gallego, N Higuita, S Sharma, LJ Lee, JJ Lannutti, and DJ Hansford, “Polymer micro-nano devices for applications in guided cell assembly,” Biomed. Eng. Soc. Annual Meeting, St. Louis, MO, Abs. P4.85, Oct. 2-4, 2008.

  37. S Sabbani, D Gallego, P Dutta, DJ Hansford, “Microfabrication of zeolite membrane on patterned porous alumina support using soft lithography,” 12th Int. Meeting Chem. Sensors, Columbus, OH, July 2008.

  38. F Garcia, OP Posada, D Gallego, N Higuita, P Agudelo, C Sarassa, DJ Hansford, LE Lopez, “Evaluation of housekeeping gene stability during human bone marrow mesenchymal stem cells differentiation to the osteogenic lineage,” 6th Ann. Meeting Int. Soc. Stem Cell Res., Philadelphia, PA, June 2008.

  39. D Gallego, N Higuita, F Garcia, O Posada, LE Lopez, AS Litsky, DJ Hansford, “Biocompatibility ,bioactivity, and mechanical properties of Portland cement and Portland cement-metakaolin blends for bone tissue engineering applications,” Materials Research Society Meeting, San Francisco, CA, March 2008.

  40. A Pelaez-Vargas, N Ferrell, MH Fernandes, DJ Hansford, FJ Monteiro, “HBM cells spreading on microfabricated silica thin film coatings,” INCOMAM 08 – Int. Conf. Microscopy Microanalysis, Porto, Portugal, 2008.

  41. I Tzanidis, S Koulouridis, K Sertel, D Hansford, JL Volakis, “Characterization of low-loss magnetodielectric composites for antenna size reduction,” 2008 IEEE Antennas and Propagation Soc. Internat. Symp., V1-9 : 4210-4213, 2008.

  42. Y Zhou, E Apaydin, S Koulouridis, Y Bayram, D Hansford, JL Volakis, “High conductivity printing on polymer-ceramic composites,” 2008 IEEE Antennas and Propoagation Soc. Internat. Symp., V1-9 : 3223-3226, 2008.

  43. E Apaydin, Y Zhou, D Hansford, S Koulouridis, JL Volakis, “Patterned Metal Printing on Pliable Composites for RF Design,” 2008 IEEE Antennas and Propagation Soc. Internat. Symp., V1-9 : 2650-2653, 2008.

  44. V Malkoc, H Borteh, DJ Hansford. “Silica-deposition gradient study in microfluidic channels by poly-L-lysine,” 235th ACS National Meeting, New Orleans, LA April 6-10,2008.

  45. N Ferrell, J Woodard, DJ Hansford, “Measurement of Cell Forces Using a Polymer MEMS Sensor.” in Proc. 1st Int. Conf. Biomed. Electronics and Devices, edited by T.B. Filho, H. Gamboa, INSTICC, 2: 151-155, Setúbal, Portugal, 2008.

  46. D Gallego, N Ferrell, N Higuita, DJ Hansford, “Soft lithographic production of electroactive polyvinylidene fluoride microstructures for BioMEMS technologies,” BioMED 2008, Innsbruck, Austria, Feb. 2008.

  47. N Higuita, D Gallego, F García, LE López, C Sarassa, P Agudelo, AS Litsky, DJ Hansford, “Development of polydimethylsiloxane-reinforced Portland cement porous scaffolds for load-bearing bone tissue engineering applications,” Int. Conf. Mech. of Biomaterials and Tissues, Lihue, HI, Dec. 13, 2007.

  48. N Ferrell, D Gallego, J Woodard, D Hansford, “Microfabrication Techniques for Polymer MEMS.” in Proc. 22nd Ann. Meet. Amer. Soc. Prec. Eng., Raleigh, NC, 2007.

  49. DJ Hansford, “Polymer-Ceramic Electro-Magnetic Composites for RF/Microwave Antennas and Circuits,” Composites at Lake Louise, Lake Louise, Canada, Oct. 30, 2007.

  50. N Higuita, D Gallego, F García, OM Posada, LE López, AS Litsky, DJ Hansford, “Portland cement-metakaolin blends as novel biomaterials for application in load-bearing tissue engineering,” Biomed. Eng. Soc. Annual Meeting, Los Angeles, CA, Abs. P6.138, Sept. 29, 2007.

  51. N Ferrell, R Butler, D Gallego, N Higuita, and DJ Hansford, “Microfabricated membranes for isolation and morphological control of cells,” Biomed. Eng. Soc. Annual Meeting, Los Angeles, CA, Abs. P3.80, Sept. 28, 2007.

  52. N Ferrell, J Woodard, and DJ Hansford, “A polymer MEMS sensor for measuring single cell forces,” Biomed. Eng. Soc. Annual Meeting, Los Angeles, CA Abs. 409, Sept. 27, 2007.

  53. H Borteh and DJ Hansford. “Peptide-induced patterning of calcium molybdate nanoparticles on different substrates.” 234th ACS National Meeting, Boston, MA, August 19-23, 2007.

  54. I Tzanidis, CC Chen, D Hansford, and JL Volakis, “Spiral antenna miniaturization using variable magnetic material loading,” URSI 2007, Ottawa, Canada, July 22-26, 2007.

  55. F García Quiroz, D Gallego-Peréz, N Higuita-Castro, DJ Hansford, L María, C Pineda, P Agudelo, CA Sarassa Velásquez, LM Jaramillo Estrada, LE López Rojas, “Obtención de células madre mesenquimatosas de la médula ósea humana y su potencial uso como modelo de evaluación de biomateriales,” III Simposio sobre Biofábricas: La Biotechnología como Herramienta para el Desarrollo y el Bioenstar, Medellín, Colombia, July 2007.

  56. E Apaydin, DJ Hansford, S Koulouridis, J Volakis, “Integrated RF circuits design and packaging in high contrast ceramic-polymer composites,” IEEE International Symposium on Antennas and Propagation, 201.9, Honolulu, HI, June 10-15, 2007.

  57. DJ Hansford and KH Sandhage, “Novel polymer-ceramic composites for conformable RF applications,” IEEE International Symposium on Antennas and Propagation, 201.5, Honolulu, HI, June 10-15, 2007.

  58. AJ Spiwak, S Warron, S Sullivan, C Sopkovich, DJ Hansford, “Effect of pump operation on temperature change and weight change of a new tubing product for peristaltic pump operation,” Amer Soc Extracorp Tech, Atlanta, GA, Apr 25-28, 2007. **Fellowship Award for outstanding scientific presentation**

  59. AJ Spiwak, C Sopkovich, T Preston, G Agarwal, DJ Hansford, “A visualization of extracorporeal technology by atomic force microscopy to appreciate surface characteristics for blood and tissue interactions,” Amer Soc Extracorp Tech, Atlanta, GA, Apr 25-28, 2007.

  60. N Ferrell, A Bross, DJ Hansford, “Micro/nanofabrication by spin dewetting on a poly (dimethylsiloxane) mold,” in Printing Methods for Electronics, Photonics and Biomaterials, edited by G. Gigli, MRS Spring Meeting 2007, 1002-N05-11, San Francisco, April 12, 2007.

  61. H Borteh, N Ferrell, R Butler, S Olesik, and DJ Hansford, “Electroless deposition of gold nanoparticles over silicon-based substrates,” MRS Spring Meeting 2007, B8.17, San Francisco, CA, April 11, 2007

  62. R Butler, N Ferrell, R Naik, DJ Hansford, “Controlled silica deposition on soft-lithography fabricated poly-L-lysine templates,” MRS Spring Meeting 2007, T5.28, San Francisco, April 11, 2007. **Outstanding Original Research Paper of Symposium T Proceedings **

  63. D Gallego-Perez, N Ferrell, DJ Hansford, “Fabrication of piezoelectric Polyvinylidene Fluoride (PVDF) microstructures by soft lithography for tissue engineering and cell biology applications,” MRS Spring Meeting 2007, N4.5, San Francisco, April 11, 2007.

  64. S Olesik, J Shearer, N Ferrell, D Hansford, “Glassy Carbon-based Micro/Nanofluidic Devices for Separation Science.” PittCon 2007: 58th Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Chicago, IL, February 25-March 2, 2007.

  65. N Ferrell, J Woodard, DJ Hansford, “Fabrication of Suspended Polymer Microstructures Using Sacrificial Layer Micromolding and Patterned Substrate Micromolding.” in Precision Micro/Nano Scale Polymer Based Component and Device Fabrication, Spring Topical Meeting, American Society for Precision Engineering, Raleigh, NC, 2007.

  66. D Gallego-Perez, N Higuita-Castro, F Garcia, N Ferrell, DJ Hansford, “Bioactive coatings on Portland cement: Surface precipitation of apatite-like crystals,” Symposium on Advanced Processing of Biomaterials, Materials Science and Technology 2006, Cincinnati, OH, Oct. 16-19, 2006.

  67. D Gallego-Perez, N Ferrell, Y Sun, DJ Hansford, “Microfabrication of degradable polymer tissue engineering scaffolds,” Symposium on Advanced Processing of Biomaterials, Materials Science and Technology 2006, Cincinnati, OH, Oct. 16-19, 2006.

  68. H Borteh, N Ferrell, R Butler, SV Olesik, DJ Hansford. "Deposition of gold nanoparticles over silicon-based substrates patterned with peptides." 232nd ACS National Meeting, September 10-14, 2006, San Francisco, CA.

  69. SV Olesik, J Shearer, M Umaedi, N Ferrell, and DJ Hansford, “Selective carbon microfabricated liquid chromatographic devices for separation of biomolecules,” HPLC Symposium 2006, San Francisco, CA, June 2006.

  70. N Higuita-Castro, D Gallego-Perez, F Garcia, LE Lopez, C Sarassa, P Agudelo, DJ Hansford, “Fabrication of biocompatible Portland cement porous scaffolds for bone tissue engineering applications,” 8th New Jersey Symp. Biomaterials Sci., New Brunswick, NJ, Nov. 2006.

  71. A Chakrapani, N Ferrell, DJ Hansford, “Fabrication of Biodegradable Polymer Microdevices for Controlled Drug Delivery Systems.” Particles 2006: Medical/Biochemical  Diagnostic, Pharmaceutical, and Drug Delivery Applications of Particle Technology, May 13-16, 2006, Orlando, FL

  72. N Ferrell, J Woodard, and DJ Hansford, “Polymer MEMS sensors for measuring single cell biomechanics,” Proc. 1st Internat’l Conf. Mech. of Biomat’ls & Tissues, Waikoloa, HI, Dec. 11-15, 2005.

  73. H He, J Guan, DJ Hansford, and LJ Lee, “Hydrogel-based multifunctional delivery devices for oral protein administration,” ACS Polymer Materials: Science and Engineering, 92, pp. 28, 2005.

  74. D Gallego, N Higuita, F Garcia, DJ Hansford, E Lopez, “Fabrication of Portland Cement porous scaffolds: Potential applications as load bearing bone substitutes,” 2nd Colombian Congress of Bioengineering and Biomedical Engineering, Bogotá, Colombia, ISBN 958-33-8404-6, October 2005.

  75. D Gallego, N Higuita, F Garcia, DJ Hansford, “Biocompatibility improvement of Portland Cement through the introduction of pozzolanic materials: Effects of metakaolin on the cytotoxicity,” 2nd Colombian Congress of Bioengineering and Biomedical Engineering, Bogotá, Colombia, ISBN 958-33-8404-6, October 2005.

  76. D Gallego, LE Lopez, DJ Hansford, J Klemas, “Bone Tissue Engineering applications of Portland Cement Phase I: Biocompatibility studies – Effects of Calcium Hydroxide,” Third International Materials Congress, Cartagena, Colombia, ISBN 958-655-889-4, Sept. 2005.

  77. J Volakis, K Kurabayashi, and DJ Hansford, “Miniature autonomous and wireless sensors based on nano-optofluidic microsystems for toxic gas detection,” Working Together: R&D Partnerships in Homeland Security (Dept. Homeland Sec. Sci. & Tech. Dir.), (poster) Boston, MA, Apr. 27-28, 2005.

  78. DJ Hansford, “Polymer MEMS devices for homeland security sensing applications,” Working Together: R&D Partnerships in Homeland Security (Dept. Homeland Sec. Sci. & Tech. Dir.), (oral pres.) Boston, MA, Apr. 27-28, 2005.

  79. DA Grewell, A Benatar, DA Ditmer, and DJ Hansford, “Beam shaping with diffractive optics for laser micro-welding of plastics,” Proc. Precision Micro/Nano Scale Polymer Based Component and Device Fabrication (ASPE Spring Topical Meeting), Columbus, OH, Apr. 18-19, 2005.

  80. NJ Ferrell, J Woodard, and DJ Hansford, “Fabrication of suspended polymer microstructures using sacrificial layer micromolding and patterned substrate micromolding,” Proc. Precision Micro/Nano Scale Polymer Based Component and Device Fabrication (ASPE Spring Topical Meeting), Columbus, OH, Apr. 18-19, 2005.

  81. D Gallego, J Klemas, E Lopez, DJ Hansford, “Biocompatibility studies on Portland Cement substrates: Potential Bone Tissue Engineering Applications,” II Symposium about Biofactories and Biotechnology Advances in C olombia, Medellín, Colombia, ISBN 958-8256-05-4, March 2005.

  82. J Woodard, N Ferrell, and DJ Hansford, “Design, fabrication, and optimization of a polymer MEMS sensor measuring single cell mechanics,” Proc. IASTED Internat’l Conf Biomed Eng, Feb. 25-26, 2005, Innsbruck, Austria.

  83. G Wei, B Bhushan, N Ferrell, and DJ Hansford, “Microfabrication and nanomechanical characterization of polymer MEMS for biological applications,” Amer Vac Soc 51st Intn’l Symp, Nov. 14-18, 2004, Session MN-MoM11, Abs. #1210, Anaheim, CA.

  84. KK Lee, B Bhushan, and DJ Hansford, “Nanotribological characterization of perfluoropolymer thin films for BioMEMS applications,” Amer Vac Soc 51st Intn’l Symp, Nov. 14-18, 2004, Session MN-MoM3, Abs. #1222, Anaheim, CA.

  85. N Ferrell, J Woodard, and DJ Hansford, “Fabrication of a Polymer MEMS Sensor for Measuring Single Cell Biomechanics.” Proc IASTED Internat’l Conf Biomech, Aug 23-25, 2004, Honolulu, HI.

  86. N Ferrell, J Woodard, and DJ Hansford, “Fabrication of Polymer MEMS for Biological Applications.” BioMEMS & Biomed Nanotech 2004 Conf, Aug 17-18, 2004, Washington, D.C.

  87. Y Sun, N Ferrell, and DJ Hansford, “Use of soft lithography for Multi-layer MicroMolding (MMM) of 3-D PCL scaffolds for tissue engineering,” Matls Res Soc Proc., O5.3.2/W9.3.2, 2004.

  88. DJ Hansford, D Gallego, D Patiño, D Calderón, N Ferrell, A Chakrapani, “Microfabricación y evaluación in vitro de scaffolds en PLGA–ácido poli (DL-lactico-co-glicolico): Microfabrication and in vitro evaluation of PLGA scaffolds,” 1st Colombian Congress of Bioengineering and Biomedical Engineering, Medellín, Colombia, Oct. 15-18, 2003.

  89. S Wang, S Lai, Y Yang, J Guan, DJ Hansford, and LJ Lee, “Nanoporous Membranes Based on Polymer Nanofabrication Methods,” AIChE 2002, Indianapolis, IN, Nov. 3-8, 2002.

  90. J Guan, LJ Lee, and DJ Hansford, “Microfabricated Polymer Particles for Drug Delivery,” AIChE 2002, Indianapolis, IN, Nov. 3-8, 2002.

  91. J Guan, N Ferrell, A Chakrapani, H He, R Short, LJ Lee, and DJ Hansford, “Engineered polymer microparticles for drug delivery,” BioMEMS and Biomedical Nanotechnology, 2002, Columbus, OH, Sept. 6-8, 2002. **awarded outstanding poster award**

  92. R Short, N Ferrell, J Guan, and DJ Hansford, “Scaling up production of injectable microfabricated polymer particles for controlled drug delivery applications,” BioMEMS and Biomedical Nanotechnology, 2002, Columbus, OH, Sept. 6-8, 2002.

  93. AT Conlisk, J McFerran, D Hansford, and Z Zheng, “Fluid Flow and Mass Transfer in Micro/Nano-Channels,” 54th Annual Meeting of the Division of Fluid Dynamics, American Physical Society, San Diego, CA, Nov. 18-20, 2001.

  94. TA Desai, L Leoni, D Hansford, and M Ferrari, “Microfabricated interfaces for biomolecular separation,” World Congress in Bioeng. And Medical Physics, Chicago, IL, 2000.

  95. D Hansford, TA Desai, and M Ferrari. “Microfabricated membranes for immunoisolation,” 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society, p. 736, 1999.

  96. D Hansford, T Desai, and M Ferrari. “Microfabricated inorganic membranes for protein separation and immunoisolation.” MRS Proc., San Francisco, CA, 1999.

  97. TA Desai, DJ Hansford, M Ferrari, and C Rastellini, “Implantation of rat islet-filled micromachined biocapsules in mice,” 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Annual Fall Meeting of the Biomedical Engineering Society, p.749, 1999.

  98. D Hansford, LP Lee, and M Ferrari. “A novel technique for the fabrication of free-standing adhesive films using a polymer template,” MRS Spring Conference. Microelectromechanical Structures for Materials Research Symposium. p. 111-15, 1998.

  99. TA Desai, DJ Hansford, WH Chu, T Huen, and M Ferrari, “Investigating islet immunoisolation parameters using microfabricated membranes,” MRS Proc., Vol. 530, pp. 7-12, 1998.

  100. D Hansford, TA Desai, J Tu, and M Ferrari. “Biocompatible Silicon Wafer Bonding for Biomedical Microdevices.” Micro and Nanofabricated Electro Optical  Mechanical Systems for Biomedical and Environmental Application, vol. 3258, pp. 164-168, 1998.

  101. M Ferrari, WH Chu, T Desai, D Hansford, G Mazzoni, and M Zhang. "Silicon nanotechnology for biofiltration and immunoisolated cell xenografts." Thin films and surfaces for bioactivity and biomedical applications. MRS Proc. Vol. 414. 1996.

  102. W Chu, M Mehregany, D Hansford, and P Pirouz. "Effect of thermal oxidation on residual stress distribution through the thickness of p+ silicon films." In 5th IEEE Solid-State Sensor and Actuator Workshop. SD Senturia, ed. pp. 90-93. Hilton Head Island, South Carolina, June 22-25, 1992.


Non-refereed Proceedings

  1. K. H. Sandhage, R. L. Snyder, R. R. Naik, M. Hildebrand, B. P. Palenik, R. A. Rapp, D. J. Hansford, and A. T. Conlisk, “Manufacturing with Micro-organisms,” 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM), Honolulu, HI, Dec. 15-20, 2005. (invited)

  2. K. H. Sandhage, S. Shian, C. S. Gaddis, M. R. Weatherspoon, Y. Cai, S. Yoo, M. S. Haluska, R. L. Snyder, Y. Liu, M. Liu, N. Ferrell, D. J. Hansford, M. Hildebrand, B. P. Palenik, “Biologically Enabled Syntheses of Nanostructured 3-D Sensor Materials: The Potential for 3-D Genetically Engineered Microdevices (3-D GEMs),” 6th East Asia Conference on Chemical Sensors, Guilin, China, Nov. 6, 2005. (Plenary talk)

  3. DL Tomasko, DJ Hansford, J Merrill, and W Walters, “Panel - Nanotechnology Curriculum and Research Opportunities in Undergraduate Engineering Education,” Frontiers in Education, FIE 2005, p. S3B-1, Oct. 19-22, 2005.

  4. DJ Hansford, “Integrated Micro- and Nanochannels: New Tools for Molecular Motion Control,” 1st Colombian Congress of Bioengineering and Biomedical Engineering, Medellín, Colombia, Oct. 15-18, 2003 (invited).

  5. DJ Hansford, “Massively parallel nanochannels in silicon and polymers: New tools for molecular motion control,” International Workshop on Nanotechnology in Health Care, SASTRA University, Thanjavur, Tamil Nadu, India, January 11-12, 2003.

  6. DJ Hansford, “Nanochannels in Silicon and Polymers: New Tools for Analytical Chemistry,” Rochester Section of American Chemical Society Fall Symposium, October 17-18, 2002, Rochester, NY.

Invited Presentations



  • “Engineering the cellular microenvironment,” Human Effectiveness Directorate seminar, 711th Human Performance Wing, Wright Patterson Air Force Base, September 4, 2014.

  • “Modification and sampling of cellular microenvironment using femto-pumps,” Center for Regenerative Medicine and Cell-Based Therapies 3rd Annual Retreat, Mohican State Park Lodge, OH, August 1-2, 2014.

  • “Medical and Biomedical Research Applications of Microfluidics,” Make@OSU symposium, May 20, 2014.

  • “Engineering the cellular microenvironment for cell biology studies,” Center for Regenerative Medicine and Cell-Based Therapies 2nd Annual Retreat, Mohican State Park Lodge, OH, July 26-27, 2013.

  • “Nanofluidic microdevices for controlling the cell microenvironment,” OSU Materials Week, Columbus, OH, May 9, 2013.

  • “Polymer biomedical microdevices for studying cell biology,” OSU BME Departmental Seminar Series, Columbus, OH, January 24, 2013.

  • “Biomedical microdevices for Diagnosis, Prognosis, and Biomedical Research,” Keynote presentation at CASEIB 2012 (Annual Conference of the Spanish Biomedical Engineering Society), San Sebastian, Spain, Nov. 21, 2012.

  • “Polymer BioMEMS for cell biology,” Parca Scientifica Barcelona, June 20, 2011.

  • “Polymer BioMEMS for cell biology,” MicroGUNE annual meeting, Mondragón, Spain, June 14, 2011

  • “Polymer BioMEMS for cell biology,” CEIT, University of Navarra, San Sebastián, Spain, April 15, 2011

  • “Micro/Nanowells for cell biology,” Institute of Biomedical Engineering (INEB), Porto, Portugal, March 9, 2011

  • “Engineering the bio-material interface,” School of Engineering, Universidad do Porto (FEUP), October 10, 2010

  • “Tools for individual cell biology experiments,” Eng. Med. Interdisc. Res. Symp.: Eng. Approaches to Cancer Translational Research, OSU, April 26, 2010.

  • “Nanofabrication of Biomaterials,” Ohio Nanotechnology Summit, Big Wolf Lodge, Mason, OH, Apr. 11, 2008.

  • “Biomedical Microdevices,” Honeywell Research Corp., Shanghai, PRC, March 18, 2008.

  • “Background, Materials, and Biological applications of Biomedical Microdevices,” Shanghai Jiao-Tong University, Shanghai, PRC, March 15, 2008.

  • “Micro- and nano-technologies for biological research,” Food, Agricultural, and Bio-Engineering seminar, OSU, Nov. 9, 2007.

  • “Polymer-ceramic electro-magnetic composites for RF/ microwave antennas and circuits,” Composites at Lake Louise 2007, Lake Louise, Alberta, Canada, Oct. 28-Nov. 1, 2007.

  • “Polymer and ceramic micro- and nanofabrication for biomedical devices and biomaterials,” Institute of Biomedical Engineering (INEB), University of Porto, Portugal, Oct. 8, 2007.

  • “Microfabrication of degradable polymer tissue engineering scaffolds,” Symposium on Advanced Processing of Biomaterials, Materials Science and Technology 2006, Cincinnati, OH, Oct. 16-19, 2006.

  • “Microfabrication of biomedical polymers,” Materials, Medicine, and Nanotechnology Summit, Cleveland, OH, Oct. 2-5, 2006.

  • “Biological micro-mechanics and biomedical microdevices,” Fraunhofer Institut für Werkstoffmechanik Biologische und Biomedizinische, Halle, Germany, August 21, 2006.

  • “Micro- and nanofabrication at The Ohio State University,” EAFIT, Medellín, Colombia, August 8, 2006.

  • “Micro- and nanotechnologies for biomedical engineering,” Escuela de Enginería de Antioquía (EIA), Medellín, Colombia, August 3, 2006.

  • “Polymer microfabrication for biomedical microdevices,” OSU BME 881 seminar, April 6, 2006.

  • “Polymer-ceramic materials for antenna and microwave applications,” NSF Connection One annual meeting, San Diego, CA, June 1, 2006.

  • “Engineered nanostructures for next generation clinical chemistry,” OSU Pathology Grand Rounds, Columbus, OH, Nov. 16, 2005.

  • “Polymer microfabrication at the Ohio MicroMD Laboratory,” Wright State University, Dayton Area Microdevice Users Interest Group, March 15, 2004.

  • “Nanotechnology and its Applications to Biomedical Engineering,” NSF SBIR Conference, Cleveland, OH, Oct. 27-30, 2003.

  • “Micro- and Nanotechnology for Biomedical Applications,” 1st Colombian Congress of Bioengineering and Biomedical Engineering, Medellín, Colombia, Oct. 15-18, 2003.

  • “Electroviscosity and electroosmosis at the nanoscale,” Defense Science Research Committee (DSRC) Workshop on Electrotribology, San Diego, CA, January 29-30, 2003.

  • “Use of nanotechnology for drug delivery systems,” Nanotechnology & Health Care, Thanjavur, Tamil Nadu, India, January 11-12, 2003

  • "Nanochannels in silicon and polymers: new tools for analytical chemistry," Rochester chapter of American Chemical Society Annual meeting, Rochester, NY, October 17-18, 2002

  • “Engineering of microparticle geometry through microfabrication for enhanced
    functionality,” Microparticles 2002, Orlando, FL, April 20-23, 2002

  • “Nanochannels in silicon and polymers for the control of biomolecular flow,” Chemical Engineering seminar (OSU), Feb. 7, 2002

  • “Polymer microfabrication for biomedical micro- and nanodevices,” Wright State University, Biomedical Engineering seminar, January 11, 2002

  • “Polymer Surface Microfabrication for Biomedical Therapeutic and Diagnostic Devices,” The Glennan Microsystems Initiative Breakfast Speaker Series, April 6, 2001

  • “Nanofluidic Devices and Therapeutic Applications,” Chips to Hits 2000, Philadelphia, PA, November 6-9, 2000

  • “Medical Therapeutics: the Next Frontier in Biochips,” International Forum on Biochip Technologies, Beijing, PRC, October 11-14, 2000

  • “Polymer Microfabrication Technologies for Therapeutic Applications,” BioMEMS and Biomedical Nanotechnology World 2000, Columbus, OH, September 24, 2000

  • “Nanoscale Fluidics,” Workshop on Design and Modeling of BioMEMS, Cleveland Clinic Foundation, June 20, 2000

  • “Therapeutic applications of biomedical microdevices,” Center for Materials Research (OSU), Feb. 10, 2000

  • “Therapeutic applications of biomedical microdevices,” BME 881 seminar (OSU)

  • “Nanotechnology and novel vistas in drug delivery,” The John J. Bonica Memorial Symposium on Cancer Pain and Palliative Care, Palermo, Italy, August 17-20, 1999




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