Journal Publications—By Year

               

* Senior author

2026

1. B. Quintanar and L. F. Velásquez-García*, “Scalable, Uniform, Three-Layered Microencapsulation Enabled by 3D-Printed Triaxial Electrospray Emitter Arrays,” Virtual and Physical Prototyping, Vol. 21, No. 1, e2676503, 2026.
2. J. Cañada, Z. Bigelow, and L. F. Velásquez-García*, “Fully 3D-Printed Electric Motor Manufactured via Multi-Modal, Multi-Material Extrusion,” Virtual and Physical Prototyping, Vol. 21, No. 1, e2613185 (24 pp), 2026.
3. J. Cañada, S. W. Wright, M. E. Kiziroglou, E. M. Yeatman, and L. F. Velásquez-García, “Magnetic Flux Guides by Material Extrusion of Microparticle-Doped Composites,” Advanced Science, e17310 (14 pp), February 2026.
4. D. J. Balter, C. McMillen, A. Ewe, J. Thomas, S. Silverman, L. Parameswaran, L. F. Velásquez-García, E. Whiting, S. Patterson, H. Koerner, and K. A. Brown, “Giant Flexoelectricity of Additively Manufactured Polylactic Acid,” Additive Manufacturing, 105066, (8 pp) January 2026.

2025

1. J. Cañada, J. M. López-Villegas, N. Vidal, S. F. Nagle, and L. F. Velásquez-García*, “Geometry Optimization of Broadband, Planar, Spiral Inductors via Continuous Trace Width Modulation,” Scientific Reports, Vol. 15, 38728 (13 pp), November 2025.
2. H. Kim and L. F. Velásquez-García*, “High-Impulse, Modular, 3D-Printed CubeSat Electrospray Thrusters Throttleable via Pressure and Voltage Control,” Advanced Science, Vol. 12, No. 13, 2413706 (13pp), April 2025.

2024

1. J. Cañada and L. F. Velásquez-García*, “Semiconductor-Free, Monolithically 3D-Printed Logic Gates and Resettable Fuses” Virtual and Physical Prototyping, Vol. 19. No. 1, e2404157 (15pp), September 2024, doi:
2. A. Kachkine and L. F. Velásquez-García*, “High-Performance, Low-Cost, Additively Manufactured Electrospray Ion Sources for Mass Spectrometry,” Journal of the American Society for Mass Spectrometry, Vol. 35, No. 5, pp. 862–870, May 2024.
3. A. Diaz and L. F. Velásquez-García*, “Compact, Monolithically 3-D Printed Quadrupole Mass Filters for CubeSat Mass Spectrometry,” IEEE Transactions in Instrumentation and Measurement, Vol. 73, pp. 1-10, Art no. 9505910, March 2024.
4. Z. Bigelow and L. F. Velásquez-García*, “Autonomous, Additively Manufactured, Multi Langmuir Probe for CubeSat Plasma Diagnostics,” IEEE Transactions in Instrumentation and Measurement, Vol. 73, pp. 1-13, Art no. 9505713, March 2024.
5. J. Cañada, H. Kim, and L. F. Velásquez-García*, “Three-Dimensional, Soft Magnetic-Cored Solenoids via Monolithic, Multi-Material Extrusion,” Virtual and Physical Prototyping, Vol. 19. No. 1, e2310046 (18pp) February 2024.
6. C. C. Eckhoff, N. K. Lubinsky, L. J. Metzler, R. E. Pedder, and L. F. Velásquez-García*, “Low-Cost, Compact Quadrupole Mass Filters with Unity Mass Resolution via Ceramic Resin Vat Photopolymerization,” Advanced Science, Vol. 11, No. 9, 2307665, March 2024.

2023

• H.-J. Lee, J. Cañada, and L. F. Velásquez-García*, “Compact Peristaltic Vacuum Pumps via Multi-Material Extrusion,” Additive Manufacturing, Vol. 68, 103511 (11pp), April 2023.

2022

• J. Izquierdo-Reyes, Z. Bigelow, N. K. Lubinsky, and L. F. Velásquez-García*, “Compact Retarding Potential Analyzers Enabled by Glass-Ceramic Vat Polymerization for CubeSat and Laboratory Plasma Diagnostics,” Additive Manufacturing, Vol. 58, 103034, Oct. 2022.
• Y. Kornbluth, R. H. Mathews, L. Parameswaran, L. Racz, and L. F. Velásquez-García*, “Fully 3D-Printed, Ultrathin Capacitors via Multi-Material Microsputtering”, Advanced Materials Technologies (, Vol 7, No. 8, 2200097 (12pp), August 2022.
• L. F. Velásquez-García*, J. Izquierdo-Reyes, and H. Kim, “Review of In-Space Plasma Diagnostics for Studying the Earth’s Ionosphere,” Journal of Physics D – Applied Physics, Vol. 55, No. 26, 263001 (26pp), June 2022.
• A. Beckwith, J. Borenstein, and L. F. Velásquez-García*, “Physical, Mechanical, and Microstructural Characterization of Novel, 3D-Printable, Tunable, Lab-Grown Plant Materials Generated from Zinnia Elegans Cell Cultures,” Materials Today, Vol. 54, pp. 27–41, April 2022.

2021

• L. F. Velásquez‐García* and Y. Kornbluth, “Biomedical Applications of Metal 3D Printing,” Annual Review of Biomedical Engineering, Vol. 23, pp. 307–338, July 2021.
• A. L. Beckwith, J. Borenstein, and L. F. Velásquez‐García*, “Tunable Plant-based Biomaterials via in vitro Cell Culture using a Zinnia ElegansModel,” Journal of Cleaner Production, Vol. 288, 125571 (10pp), March 2021.

2020

• D. Melo Máximo and L. F. Velásquez-García*, “Additively Manufactured Electrohydrodynamic Ionic Liquid Pure-Ion Sources for Nanosatellite Propulsion”, Additive Manufacturing, Vol 36, 101719 (11pp), December 2020.
• Y. Kornbluth, R. H. Mathews, L. Parameswaran, L. Racz, and L. F. Velásquez-García*, “Nano-Additively Manufactured Gold Thin Films with High Adhesion and Near-Bulk Electrical Resistivity via Jet-Assisted, Nanoparticle-Dominated, Room-Temperature Microsputtering,” Additive Manufacturing, Vol. 36, 101679 (11pp), December 2020.
• A. P. Taylor, J. Izquierdo Reyes, and L. F. Velásquez-García*, “Compact, Magnetically Actuated, Additively Manufactured Pumps for Liquids and Gases,” Journal of Physics D – Applied Physics, Vol. 53, No. 35, 355002 (13pp) August 2020.
• Z. Sun and L. F. Velásquez-García*, “Miniature, Metal 3D-Printed, Multiplexed Electrohydrodynamic Gas Pumps,” Plasma Research Express, Vol. 2, No. 2, 025009 (21pp), June 2020.
• E. Segura-Cárdenas and L. F. Velásquez-García*, “Additively Manufactured, Robust Microfluidics via Silver Clay Extrusion,” IEEE Journal of Microelectromechanical Systems, Vol. 29, No. 3, pp. 427 – 437, June 2020.

2019

• I. A. Perales and L. F. Velásquez-García*, “Fully 3D-Printed Carbon Nanotube Field Emission Electron Sources with In-Plane Gate Electrode,” IOP Nanotechnology, Vol. 30, No. 49, 495302 (12pp), December 2019.
• B. García-Farrera and L. F. Velásquez-García*, “Sub-100 nm Ceramic Piezoelectric Films via Electrohydrodynamic Deposition for Printed, High-Frequency Applications,” ACS Applied Materials & Interfaces, Vol. 11, No. 32, pp. 29167 – 29176, August 2019.
• Y. Kornbluth, R. H. Mathews, L. Parameswaran, L. Racz, and L. F. Velásquez-García*, “Room-Temperature, Atmospheric-Pressure Deposition of Dense, Nanostructured Metal Films via Microsputtering,” IOP Nanotechnology, Vol. 30, No. 28, 285602 (10pp), July 2019.
• A. P. Taylor, C. Vélez Cuervo, D. Arnold, and L. F. Velásquez-García*, “Fully 3D-Printed, Monolithic Magnetic Actuators for Low-Cost, Compact Systems,” Journal of Microelectromechanical Systems, Vol. 28, No. 3, pp. 481 – 493, June 2019.
• A. L. Beckwith, L. F. Velásquez-García, and J. T. Borenstein, “Microfluidic Model for Evaluation of Immune Checkpoint Inhibitors in Human Tumors,” Advanced Healthcare Materials, Vol. 8, No. 11, 1900289 (6pp), June 2019.
• C. Yang and L. F. Velásquez-García*, “Low-Cost, Additively Manufactured Electron Impact Gas Ionizer with CNT Field Emission Cathode for Compact Mass Spectrometry,” Journal of Physics D – Applied Physics, Vol. 52, No. 7, 075301 (9pp), February 2019.

2018

• Z. Sun, G. Vladimirov, E. Nikolaev, and L. F. Velásquez-García*, “Exploration of Metal 3-D Printing Technologies for the Microfabrication of Freeform, Finely Featured, Mesoscaled Structures”, IEEE Journal of Microelectromechanical Systems, Vol. 27, No. 6, pp. 1171 – 1185, December 2018.
• A. L. Beckwith, J. T. Borenstein, and L. F. Velásquez-García*, “Monolithic 3D-Printed Microfluidic Platform for Assessment of Immunotherapy Treatments”, IEEE Journal of Microelectromechanical Systems, Vol. 27, No. 6, pp. 1009 – 1022, December 2018.
• E. Nikolaev, M. Sudakov, G. Vladimirov, L. F. Velásquez-García, P. Borisovets, and A. Fursova, “Multi-Electrode Harmonized Kingdon Traps”, Journal of the American Society for Mass Spectrometry, Vol. 29, No. 11, pp. 2173 – 2181, November 2018.
• Y. Kornbluth, R. H. Mathews, L. Parameswaran, L. M. Racz, and L. F. Velásquez-García*, “Microsputterer with Integrated Ion-Drag Focusing for Additive Manufacturing of Thin, Narrow, Conductive Lines,” Journal of Physics D – Applied Physics, Vol. 51, No. 16, 165603 (11pp), April 2018.

2017

• Z. Sun and L. F. Velásquez-García*, “Monolithic FFF Printed, Biodegradable, Biocompatible, Dielectric–Conductive Microsystems,” IEEE Journal of Microelectromechanical Systems, Vol. 26, No. 6, pp. 1356 – 1370, December 2017.
• A. P. Taylor and L. F. Velásquez-García*, “Miniaturized Diaphragm Vacuum Pump by Multi-Material Additive Manufacturing,” IEEE Journal of Microelectromechanical Systems, Vol. 26, No. 6, pp. 1316 – 1326, December 2017.
• E. García-López, D. Olvera-Trejo, and L. F. Velásquez-García*, “3-D Printed Multiplexed Electrospinning Sources for Large-Scale Production of Aligned Nanofiber Mats with Small Diameter Spread,” IOP Nanotechnology, Vol. 28, No. 42, 425302 (12pp), October 2017. Paper was selected to IOP Nanotechnology’s Highlights of 2017 Collection as one of the top 6 papers in Patterning and Nanofabrication published that year.

2016

• A. Basu and L. F. Velásquez-García*, “Electrostatic Ion Pump with Nanostructured Si Field Emission Electron Source and Ti Particle Collectors for Supporting Ultra-High Vacuum in Miniaturized Atom Interferometry Systems,” Journal of Micromechanics and Microengineering, Vol. 26, No. 12, 124003 (10pp), December 2016.  Paper was selected to the Journal of Micromechanics and Microengineering 2016 Highlights Collection—the top 25 papers from the pool of articles published that year.
• D. Olvera-Trejo and L. F. Velásquez-García*, “Additively Manufactured MEMS Multiplexed Coaxial Electrospray Sources for High-Throughput, Uniform Generation of Core-Shell Microparticles,” Lab on a Chip, Vol. 16, No. 21, pp. 4121 – 4132, November 2016.  Paper was the featured article and outside back cover of the volume 16, issue 21 of the RSC Journal Lab on a Chip.
• P. J. Ponce de Leon and L. F. Velásquez-García*, “Optimization of Capillary Flow Through Open-Microchannel and Open-Micropillar Arrays,” Journal of Physics D – Applied Physics, Vol. 49, No. 5, 055501 (13pp), February 2016.  Paper was selected to the Journal of Physics D: Applied Physics Highlights of 2016 as one of the top 6 papers in Interdisciplinary Applied Physics published by the journal that year.

2015

• L. F. Velásquez-García*, “SLA 3D-Printed Arrays of Miniaturized, Internally-Fed, Polymer Electrospray Emitters,” IEEE Journal of Microelectromechanical Systems, Vol. 24, No. 6, pp. 2117 – 2127, December 2015.
• A. P. Taylor and L. F. Velásquez-García*, “Electrospray-Printed Nanostructured Graphene Oxide Gas Sensors,” IOP Nanotechnology, Vol. 26, No. 50, 505301 (8pp), December 2015.
• E. V. Heubel and L. F. Velásquez-García*, “Microfabricated Retarding Potential Analyzers with Enforced Aperture Alignment for Improved Ion Energy Measurements in Plasmas,” IEEE Journal of Microelectromechanical Systems, Vol. 24, No. 5, pp. 1355 – 1369, October 2015.
• C. Dong, M. E. Swanwick, D. Keithley, F. X. Kärtner, and L. F. Velásquez-García*, “Multiplexing and Scaling-Down of Nanostructured, Photon-Triggered Silicon Field Emitter Arrays for Maximum Total Electron Yield,” IOP Nanotechnology, Vol. 26, No. 26, 265202 (11pp), June 2015.
• J. Ponce de Leon, F. A. Hill, E. V. Heubel, and L. F. Velásquez-García*, “Parallel Nanomanufacturing via Electrohydrodynamic Jetting from Microfabricated Externally-Fed Emitter Arrays,” IOP Nanotechnology, Vol. 26, No. 22, 225301 (10pp), June 2015.  Paper was the featured article and cover of the issue 22, volume 26 of the IOP Journal Nanotechnology.
• A. Basu, M. E. Swanwick, A. A. Fomani, and L. F. Velásquez-García*, “A Portable X-ray Source with a Nanostructured Pt-coated Silicon Field Emission Cathode for Absorption Imaging of low-Z Materials,” Journal of Physics D – Applied Physics, Vol. 48, No. 22, 225501 (11pp), May 2015.  Paper was the featured article the week of May 18 in the website of the IOP Journal of Physics D – Applied Physics (2015).
• S. Cheng, F. A. Hill, E. V. Heubel, and L. F. Velásquez- García*, “Low-Bremsstrahlung X-ray Source Using a Low-Voltage High-Current-Density Nanostructured Field Emission Cathode and a Transmission Anode for Markerless Soft Tissue Imaging,” IEEE Journal of Microelectromechanical Systems, Vol. 24, No. 2, pp. 373 – 383, April 2015. Paper was selected as one of the three JMEMS RightNow Papers of the April 2015 bi-monthly issue of JMEMS, recognizing its excellent quality.

2014

• X. Xie, Y. Zaitsev, L. F. Velásquez-García, S. J. Teller, and C. Livermore, “Scalable, MEMS-Enabled, Vibrational Tactile Actuators for High Resolution Tactile Displays,” Journal of Micromechanics and Microengineering, Vol. 24, No. 12, 125014 (11pp), November 2014.
• R. G. Hobbs, Y. Yang, P. D. Keathley, M. E. Swanwick, L. F. Velásquez-García, F. X. Kärtner, W. S. Graves, and K. K. Berggren, “High-Density Au Nanorod Optical Field-Emitter Arrays,” IOP Nanotechnology, Vol. 25, No. 46, 465304 (7pp), October 2014.
• F. A. Hill, E. V. Heubel, P. J. Ponce de Leon, and L. F. Velásquez-García*, “High-Throughput Ionic Liquid Ion Sources Using Arrays of Microfabricated Electrospray Emitters with Integrated Extractor Grid and Carbon Nanotube Flow Control Structures,” IEEE Journal of Microelectromechanical Systems, Vol. 23, No. 5, pp. 1237 – 1248, October 2014.  Paper was selected as one of the three JMEMS RightNow Papers of the October 2014 bi-monthly issue of JMEMS, recognizing its excellent quality.
• E. F. C. Chimamkpam, E. S. Field, A. I. Akinwande, and L. F. Velásquez-García*, “Resilient Batch-Fabricated Planar Arrays of Miniaturized Langmuir Probes for Real-Time Measurement of Plasma Potential Fluctuations in the HF to Microwave Frequency Range,” IEEE Journal of Microelectromechanical Systems, Vol. 23, No. 5, pp. 1131 – 1140, October 2014.
• M. E. Swanwick, P. D. Keathley, A. Fallahi, P. R. Krogen, G. Laurent, F. X. Kärtner, and L. F. Velásquez-García*, “Nanostructured Ultrafast Silicon-Tip Optical Field Emitter Arrays,” Nano Letters, Vol. 14, No. 9, pp. 5035 – 5043, July 2014.
• A. Fomani, S. Guerrera, L. F. Velásquez-García, and A. I. Akinwande, “Toward Amp-level Field Emission with Large-area Arrays of Pt-coated Self-Aligned Gated Nano-scale Tips,” IEEE Transactions in Electron Devices, Vol. 61, No. 7, pp. 2538 – 2546, July 2014.
• A. Fomani, L. F. Velásquez-García, and A. I. Akinwande, “Low-voltage Field Ionization of Gases up to Torr-level Pressures using Massive Arrays of Self-Aligned Gated Nano-scale Tips,” IEEE Transactions on Electron Devices, Vol. 61, No. 5, pp. 1520 – 1528, May 2014.

2013

• P. D. Keithley, A. Sell, W. P. Putnam, S. Guerrera, L. F. Velásquez-García, and F. X. Kärtner, “Strong-Field Photo-Emission from Silicon Field Emitter Arrays,” Annalen Der Physik, Vol. 525, No. 1-2, pp. 144 – 150, 2013.  Paper was featured article and frontispiece of Feb 2013 Issue of the Journal Annalen Der Physik.

2012

• S. Guerrera, L. F. Velásquez-García, and A. I. Akinwande, “Scaling of High-Aspect-Ratio Current Limiters for the Individual Ballasting of Large Arrays of Field Emitters,” IEEE Transactions on Electron Devices, Vol. 59, pp. 2524 – 2530, September 2012.

2011

• L-Y. Chen, L. F. Velásquez-García, X. Wang, K. Cheung, K. Teo, and A. I. Akinwande, “A Micro Ionizer for Portable Mass Spectrometers using Double-Gated Isolated Vertically Aligned Carbon Nanofiber Arrays,” IEEE Transactions on Electron Devices, Vol. 58, No. 7, pp. 2149 – 2158, July 2011.
• L. F. Velásquez-García, S. Guerrera, Y. Niu, and A. I. Akinwande, “Uniform High-Current Cathodes Using Massive Arrays of Si Field Emitters Individually Controlled by Vertical Si Ungated FETs – Part 2: Device Fabrication and Characterization,” IEEE Transactions on Electron Devices, Vol. 58, No. 6, pp. 1783 – 1791, June 2011.
• L. F. Velásquez-García, S. Guerrera, Y. Niu, and A. I. Akinwande, “Uniform High-Current Cathodes Using Massive Arrays of Si Field Emitters Individually Controlled by Vertical Si Ungated FETs – Part 1: Device Design and Simulation,” IEEE Transactions on Electron Devices, Vol. 58, No. 6, pp. 1775 – 1782, June 2011.

2010

• F. Eid, L. F. Velásquez-García, and C. Livermore, “Design, Fabrication, and Demonstration of a MEMS Steam Generator for Ejector Pump Applications,” Journal of Micromechanics and Microengineering, Vol. 20, No. 20, 104007, September 2010.
• T. J. Hogan, S. Taylor, K. Cheung, L. F. Velásquez-García, A. I. Akinwande, and R. E. Pedder, “Performance Characteristics of a MEMS Quadrupole Mass Filter with Square Electrodes – Experimental and Simulated Results,” IEEE Transactions on Instrumentation and Measurement, Vol. 59, No. 9, pp. 2458 – 2464, September 2010.
• B. Gassend, L. F. Velásquez-García, and A. I. Akinwande, “Design and Fabrication of DRIE-Patterned Complex Needle-Like Structures,” IEEE Journal of Microelectromechanical Systems, Vol. 19, No. 3, pp. 589 – 598, June 2010.
• L. F. Velásquez-García, B. Gassend, and A. I. Akinwande, “CNT-based MEMS Ionizers for Portable Mass Spectrometry Applications,” IEEE Journal of Microelectromechanical Systems, Vol. 19, No. 3, pp. 484 – 493, June 2010.
• K. Cheung, L. F. Velásquez-García, and A. I. Akinwande, “Chip-Scale Quadrupole Mass Filters for Portable Mass Spectrometry,” IEEE Journal of Microelectromechanical Systems, Vol. 19 No. 3, pp. 469 – 483, June 2010.

2009

• B. Gassend, L. F. Velásquez-García, A. I. Akinwande and M. Martinez-Sanchez, “A Microfabricated Planar Electrospray Array Ionic Liquid Ion Source with Integrated Extractor,” IEEE Journal of Microelectromechanical Systems, Vol. 18, No. 3, pp. 679 – 694, June 2009.
• B. Gassend, L. F. Velásquez-García, and A. I. Akinwande, “Precision In-Plane Hand Assembly of Bulk-Microfabricated Components for High Voltage MEMS Arrays Applications,” IEEE Journal of Microelectromechanical Systems, Vol. 18, No. 2, pp. 332 – 346, April 2009.

2008

• L. F. Velásquez-García, K. Cheung, and A. I. Akinwande, “An Application of 3D MEMS Packaging: Out-Of-Plane Quadrupole Mass Filters,” IEEE Journal of Microelectromechanical Systems, Vol. 16, No. 6, pp. 1430 – 1438, December 2008.
• L. F. Velásquez-García and A. I. Akinwande, “Fabrication of Large Arrays of High-Aspect-Ratio, Single Crystal Silicon Columns with Isolated Vertically Aligned Multi-Walled Carbon Nanotube Tips,” IOP Nanotechnology Vol. 19, No. 40, 405305 (6pp), October 2008.  Paper was the featured article and cover of the issue 40, volume 19 of the IOP Journal Nanotechnology.
• B. A. Wilhite, K. F. Jensen, T. F. Hill, L. F. Velásquez-García, A. H. Epstein, and C. Livermore, “Design of a Silicon-Based Microscale Trickle-Bed System for Singlet-Oxygen Production,” American Institute of Chemical Engineering Journal, Vol. 54, No. 9, pp. 2441 – 2455, September 2008.

2007

• T. F. Hill, L. F. Velásquez-García, B. A. Wilhite, W. T. Rawlins, S. Lee, K. F. Jensen, A. H. Epstein, and C. Livermore, “A MEMS Singlet Oxygen Generator – Part II: Experimental Exploration of the Performance Space,” IEEE Journal of Microelectromechanical Systems, Vol. 16, No. 6, pp. 1492 – 1505, December 2007.
• L. F. Velásquez-García, T. F. Hill, B. A. Wilhite, K. F. Jensen, A. H. Epstein, and C. Livermore, “A MEMS Singlet Oxygen Generator – Part I: Device Fabrication and Proof of Concept Demonstration,” IEEE Journal of Microelectromechanical Systems, Vol. 16, No. 6, pp. 1482 – 1491, December 2007.
• L. F. Velásquez-García, A. I. Akinwande and M. Martínez-Sánchez, “Precision Hand Assembly of MEMS Subsystems using DRIE-patterned Deflection Spring Structures: An Example of an Out-of-Plane Substrate Assembly,” IEEE Journal of Microelectromechanical Systems, Vol. 16, No. 3, pp. 598 – 612, June 2007.

2006

• L. F. Velásquez-García, A. I. Akinwande, and M. Martínez–Sánchez, “A Planar Array of Micro-Fabricated Electrospray Emitters for Thruster Applications,” IEEE Journal of Microelectromechanical Systems, Vol. 15, No. 5, pp. 1272 – 1280, October 2006.
• L. F. Velásquez-García, A. I. Akinwande, and M. Martínez–Sánchez, “A Micro-Fabricated Linear Array of Electrospray Emitters for Thruster Applications,” IEEE Journal of Microelectromechanical Systems, Vol. 15, No. 5, pp. 1260 – 1271, October 2006.