Publications

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*Corresponding author

2018

Jain, T. Saylor, D., Piard, C., Liu, Q. , Patel, V., Kaushal, R., Choi, J.W., Fisher, J., Isayeva, I., Joy, A., “The effect of dexamethasone as a bioactive filler on ambient temperature 3D printing, rheology, and degradation of a low modulus polyester,” Biofabrication, Under review.

Emon, M.O.F., Lee, J., Choi, J.W.*, “Characterization of a 3D Printable Soft-Sensor on the basis of Ionic Liquid Concentration and Thickness of the Piezoresistive Layer,” Sensors and Actuators A – Physical, Under review.

Vatani, M., Alkadi, F., Choi, J.W.*, “Algorithm to Reduce Leading and Lagging in Conformal Direct-Print,” ASME Journal of Manufacturing Science and Engineering, Under review.

Govindarajan, S.R., Jain, T., Choi, J.W., Joy, A., Isaeyva, I., Vorvolakos, K., “Viscoelastic Copolyester “CPP8515” for 3D Printing of Low Modulus Degradable Hydrogels: Chemistry, Rheology and Interface Formation,” Polymers, Under review.

Copploe, A., Vatani, M., Amini, R., Choi, J.W., Tavana, H., “Engineered Airway Models to Study Liquid Plug Splitting at Bifurcations: Effects of Orientation and Airway Size,” ASME Journal of Biomechanical Engineering, Under review.

Jo, K.H., Lee, S.H., Choi, J.W.*, “Liquid Bridge Stereolithography – A Proof of Concept,” International Journal of Precision Engineering and Manufacturing, In press.

Alkadi, F., Lee, J., Yeo, J.S., Hwang, S.H., Choi, J.W.*, 2018, “3D printed tire treads using recycled tire rubbers,” International Journal of Precision Engineering and Manufacturing – Green Technology, In press.

Lee, J., Lu, Y., Kashyap, S., Alamdari, A., Emon, M.O.F., Choi, J.W.*, 2018, “Liquid Bridge Microstereolithography,” Additive Manufacturing, Vol. 21, pp. 76-83.

Lee, J.K., Choi, J.W., Lee, K.C., Lee, S., 2018, “Development of a Direct-Printed Tactile Sensor for Slip Detection and Its Application to Gripper Control,” International Journal of Control, Automation and Systems, Vol. 16 (2), pp. 929-936.

2017

Thyagaraj, S., Pahlavian, S.H., Loth, F., Vatani, M., Choi, J.W., Tubbs, S., Giese, D., Kroger, J.-R., Bunck, A.C., Martin, B., 2017, “An MRI-Compatible Hydrodynamic Simulator of Cerebrospinal Fluid Motion in the Cervical Spine,” IEEE Transactions on Biomedical Engineering, Issue: 99, TBME-00907-2017 (8 pages).

Lee, J., Kim, H.C., Choi, J.W., and Lee, I.H., 2017, “A review on 3D printed smart devices for 4D printing,” International Journal of Precision Engineering and Manufacturing – Green Technology, Vol. 4, No. 3, pp. 373-383.

Emon, M.O.F., Choi, J.W.*, 2017, “Flexible piezoresistive sensors embedded in 3D printed tires,” Sensors, Vol. 17, No. 3, 656 (13 pages).

Vatani, M., Choi, J.W.*, 2017, “Direct-print photopolymerization for 3D printing,” Rapid Prototyping Journal, Vol. 23, Issue 2, pp. 337-343.

Lee, J., Emon, M.O.F., Vatani, M., Choi, J.W.*, 2017, “Effect of degree of crosslinking and polymerization of 3D printable polymer/ionic liquid composites on performance of stretchable piezoresistive sensors,” Smart Materials and Structures, Vol. 26, 035043 (8 pages).

2016

Govindarajan, S.R., Xu, Y., Swanson, J.P., Jain, T., Lu, Y., Choi, J.W., Joy, A., 2016, “A Solvent and Initiator Free, Low-Modulus, Degradable Polyester Platform with Modular Functionality for Ambient-Temperature 3D Printing,” Macromolecules, Vol. 49, No. 7: pp. 2479 – 2437.

Vatani, Morteza, Vatani, Mohammad, Choi, J.W.*, 2016, “Multi-layer stretchable pressure sensors using ionic liquids and carbon nanotubes,” Applied Physics Letters, Vol. 108, pp. 061908 (5 pages).

Hasan, M.N., Vatani, M., Chandy, A., Choi, J.W.*, 2016, “Experimental and Numerical Analysis of Filament Front Deformation for Direct-Print,” ASME Journal of Manufacturing Science and Engineering, Vol. 138, No. 1, pp. 011003 (12 pages).

2015

Lu, Y., Yun, H.Y., Vatani, M., Kim, H.C., Choi, J.W.*, 2015, “Direct-Print/Cure as a Molded Interconnect Device (MID) Process for Fabrication of Automobile Cruise Controllers,” Journal of Mechanical Science and Technology, Vol. 29, No. 12, pp. 5377-5385.

Hasan, M.N., Chandy, A., Choi, J.W.*, 2015, “Numerical Analysis of Droplet Impact and Consequent Deformation for Direct-Print,” Engineering Applications of Computational Fluid Mechanics, Vol. 9, No. 1, pp. 554-566.

Lu, Y., Mantha, S.N., Crowder, D.C., Chinchilla, S., Yun, Y.H., Wicker, R.B., Choi, J.W.*, 2015, “Microstereolithography and Characterization of Poly(propylene fumarate)-based Drug-loaded Microneedle Arrays,” Biofabrication, Vol. 7, pp. 045001 (13 pages), (Media released in IOP Publishing).

Engeberg, E., Dilibal, S., Vatani, M., Choi, J.W., Lavery, J., 2015, “Anthropomorphic Finger Antagonistically Actuated by SMA Plates,” Bioinspiration & Biomimetics, Vol. 10, pp. 056002 (15 pages).

Vatani, M., Engeberg, E.D., Choi, J.W.*, 2015, “Conformal Direct-Print of Piezoresistive Polymer/Nanocomposites for Compliant Multi-layer Tactile Sensors,” Additive Manufacturing, 7, pp. 73-82.

Vatani, M., Lu, Y., Engeberg, E.D., Choi, J.W.*, 2015, “Combined 3D Printing Technologies and Materials for Fabrication of Tactile Sensors,” International Journal of Precision Engineering and Manufacturing, Vol. 16, No. 7, pp. 1375-1383.

2014

Vatani, M., Engeberg, E.D., Choi, J.W.*, 2014, “Detection of the Position, Direction, and Speed of Sliding Contact with a Multi-layer Compliant Tactile Sensor Fabricated using Direct-Print Technology,” Smart Materials and Structures, Vol. 23, pp. 0905008 (11pp).

2013

Lu, Y., Vatani, M., Choi, J.W.*, 2013, “Direct-Write/Cure Conductive Polymer Nanocomposites for 3D Structural Electronics,” Journal of Mechanical Science and Technology, Vol. 27, No. 10, pp. 2929-2934.

Vatani, M., Engeberg, E.D., Choi, J.W.*, 2013, “Force and Slip Detection with Direct-Write Compliant Tactile Sensors Using Multi-Walled Carbon Nanotube/Polymer Composites,” Sensors and Actuators A – Physical, Vol. 195, pp. 90-97 (Featured in the ScienceDirect Top 25 List of Most Downloaded Articled).

Vatani, M., Lu, Y., Lee, K.S., Kim, H.C., Choi, J.W.*, 2013, “Direct-write stretchable sensors using single-walled carbon nanotubes/polymer matrix,” ASME Journal of Electronic Packaging, Vol. 135, pp. 011009-1-5.

2012

Wu, H., Hu, W., Hu, H-C., Lin, X-W., Zhu, G., Choi, J.W., Chigrinov V., Lu, Y-Q. 2012, “Arbitrary photo-patterning in liquid crystal alignments using DMD based lithography system,” Optics Express, Vol. 20, Iss. 15, pp. 16684-16689.

2011

Choi, J.W.*, Quintana, R., Wicker, R. 2011, “Fabrication and characterization of embedded horizontal micro-channels using line-scan stereolithography,” Rapid Prototyping Journal, Vol. 17, Issue 5, pp. 351-361.

Choi, J.W., Kim, H.C., Wicker, R. 2011, “Multi-material stereolithography,” Journal of Materials Processing Technology, Vol. 211, pp. 318-328.

Choi, J.W., Medina, F., Kim, C., Espalin, D., Rodriguez, D., Stucker, B., Wicker, R. 2011, “Development of a mobile fused deposition modeling system with enhanced manufacturing flexibility,” Journal of Materials Processing Technology, Vol. 211, pp. 424-432.

Before 2010

Choi, J.W.*, Yamashita, M., Sakakibara, J., Kaji, Y., Oshika, T., Wicker, R. 2010, “Combined Micro and Macro Additive Manufacturing of a Swirling Flow Coaxial Phacoemulsifier Sleeve with Internal Micro-Vanes,” Biomedical Microdevices, Vol. 12, pp. 875-886.

Choi, J.W.*, MacDonald, E., Wicker, R.B. 2010, “Multi-Material Microstereolithography,” International Journal of Advanced Manufacturing Technology, Vol. 49, No. 5, pp. 543-551.

Kim, H.C., Choi, J.W., Wicker, R.B. 2010, “Scheduling and process planning for multiple material stereolithography,” Rapid Prototyping Journal, Vol. 16, No. 4, pp. 232-240.

Kim, H.C., Choi, J.W., MacDonald, E., Wicker, R.B. 2010, “Slice Overlap Detection Algorithm for the Process Planning of Multiple Material Stereolithography Apparatus,” International Journal of Advanced Manufacturing Technology, Vol. 46, No. 9, pp. 1161 – 1170.

Quintana, R., Choi, J.W., Puebla, K., Wicker, R.B. 2010, “Effects of build orientation on tensile strength for stereolithography manufactured ASTM D-638 Type I specimens of DSM SOMOS® 11120 resin,” International Journal Advanced Manufacturing Technology, Vol. 46, No. 1-4, pp. 201-215.

Choi, J.W., Choi, K.H., Chung, I., Ha, C.S., Lee, S.H., Wicker, R.B. 2009, “Fabrication of 3D Biocompatible/biodegradable Micro-Scaffolds using dynamic Mask Projection Microstereolithography,” Journal of Materials Processing Technology, Vol. 29, pp. 5494-5503.

Choi, J.W., Wicker, R.B., Cho, S.H., Ha, C.S., Lee, S.H. 2009, “Cure depth control for complex 3D microstructure fabrication in dynamic mask projection microstereolithography,” Rapid Prototyping Journal, Vol. 15, No. 1, pp. 59-70.

Park, I.B., Choi, J.W., Lee, S.H. 2009, “Multiple fabrications of sacrificial layers to enhance the dimensional accuracy of microstructures in maskless projection microstereolithography,” International Journal of Precision Engineering and Manufacturing, Vol. 10, No. 1, pp. 91-98.

Ha, Y.M., Choi, J.W., Lee, S.H. 2008, “Mass Production of 3-D Microstructures Using Projection Microstereolithography,” Journal of Mechanical Science and Technology, Vol. 22, No. 3, pp. 514~521.

Choi, J.W., Ha, Y.M., Choi, K.H., Lee, S.H. 2007, “Fabrication of 3-Dimensional Microstructures using Dynamic Image Projection,” Key Engineering Materials, Vol. 339, pp. 473-478.

Choi, J.W., Ha, Y.M., Lee, S.H., Choi, K.H. 2006, “Design of Microstereolithography System based on Dynamic Image Projection for Fabrication of Three-Dimensional Microstructures,” Journal of Mechanical Science and Technology, Vol. 20, No. 12, pp. 2094-2104.

Choi, J.W., Hur, S.M., Lee, S.H. 2002, “Free-form Surface Generation from Measuring Points using Laser Scanner,” International Journal of the Korean Society of Precision Engineering, Vol. 3, No. 4, pp. 15-23.