Contact Details

George Chiu
School of Mechanical Engineering
Purdue University
585 Purdue Mall
West Lafayette, IN 47907 US
+1 (765) 494-2688
gchiu at purdue.edu

Download Curriculum Vitae

About Me

I am a Professor in the School of Mechanical Engineering with courtesy appointments in the School of Electrical and Computer Engineering and the Department of Psychological Sciences at Purdue University. From September 2011 to June 2014, I served as a Program Director in the US National Science Foundation managing the Control Systems Program and the National Robotics Initiative (NRI) for the Engineering Directorate. Currently, I have a 50% appointment as the Assistant Dean for Global Engineering Programs and Partnerships.

Before joining Purdue University, I worked for HP and was part of the team that developed the HP Copyjet product line in the late 1990s. At Purdue, I teach courses in the systems, measurements and control (SMAC) area and conduct research in mechatronics, dynamical systems and control, functional printing.

In 1999, working with a team of Purdue students and Mr. Steve Florence, a West Lafayette High School teacher, we founded the Purdue FIRST Programs, a student organization that supports and mentors local and Indiana K-12 students through the FIRST Robotics activities. To facilitate and sustain PFP’s community service, I offer a hands-on experiential style course for PFP college mentors to develop their mentoring, project and event management, and leadership skills.

I served as the the Editor-in-Chief for the IEEE/ASME Transactions on Mechatronics from 2017-19 and as the Editor for the Journal of Imaging Science and Technology from 2012-14. I was the Division Chair for the ASME Dynamic Systems and Control Division in 2013-14, and served on its Executive Committee from 2007-15. I am a Fellow of the American Society of Mechanical Engineers (ASME) and the Society for Imaging Science and Technology (IS&T).

Education

PhD (1994) University of California at Berkeley
MS (1990) University of California at Berkeley
BS (1985) National Taiwan University

Research

Our research centers around mechatronics and dynamic systems and control with applications to digital printing and imaging systems, digital fabrications and functional printing, human motor control, motion and vibration perception and control, and robotics. Our efforts focus on application motivated research, where research problems are formulated from application specific characteristics, constraints and objectives. Novel solutions that meet implementation constraints are developed using integrated systems approaches and appropriate technology translations. Results from our research group have impacted products such as hydraulic lifts, laser and inkjet printers, document scanners and off-road vehicles.

Current Projects

Journal Publications

(Partial list since 2014)

  1. Z. Siefker, J. Hodul, C. Flores-Hansen, G. Chiu, J. Braun, J. Rhoads, and B. Boudouris, “Sorption Kinetics of Poly(ethyleneimine)-Poly(ethylene oxide) Blends and the Implication for Low-Cost, Small-Scale CO2 Sensors,” ACS Applied Polymer Materials, May 2022, 10.1021/acsapm.2c00361
  2. C. Cheng, G.T-C. Chiu, and B. Han, “A Scaling Law of Particle Transport in Inkjet-Printed Particle-Laden Polymeric Drops,” International Journal of Heat and Mass Transfer, April 2022, 10.1016/j.ijheatmasstransfer.2022.122840
  3. Z. Siefker, X. Zhao, N. Bajaj, A. Boyina, J. Braun, G. Chiu, B. Boudouris, and J. Rhoads, “A Carbon Nanotube-Functional Polymer Composite Film for Low-Power Indoor CO2 Monitoring,” IEEE Sensor Journal, November 30, 2021, 10.1109/JSEN.2021.3131428
  4. M. McConnell, A. Murray, B. Boudouris, I. Gunduz, S. Son, G. Chiu, and J. Rhoads, “Conductive Polymer Spark Gap Igniters,” Propellants, Explosives, Pyrotechnics, August 2021, 10.1002/prep.202100016
  5. Y. Wu and G. Chiu, “An Improved Model of Height Profile for Drop-On-Demand Print of Ultraviolet Curable Ink,” ASME Letters on Dynamic Systems and Control. Vol. 1, No. 3, pp. 031010, July 2021, 10.1115/1.4050012
  6. Z.A. Siefker, J.N. Hodul, X. Zhao, N. Bajaj, K.M. Brayton, C. Flores-Hansen, W. Zhao, G.T.-C. Chiu, J.E. Braun, J.F. Rhoads, and B.W. Boudouris, “Manipulating Polymer Composition to Create Low-cost, High-fidelity Sensors for Indoor CO2 Monitoring,” Scientific Reports, Vol. 11, 13237, June 2021, 10.1038/s41598-021-92181-4
  7. A. Kanach, T. Bottorff, M. Zhao, J. Wang, G.T.-C. Chiu, and B. Applegate, “Evaluation of Anhydrous Processing and Storage Methods of the Temperate Bacteriophage ɸV10 for Integration into Foodborne Pathogen Detection Methodologies,” PLoS ONE, Vol. 16, No. 4, pp. e0249473, April 2021, 10.1371/journal.pone.0249473
  8. D. Feng, J. Wang, G.T-C. Chiu, and A. Raman, “Vibration of Air-Coupled Wed Systems,” ASME Journal of Vibration and Acoustics, Vol. 143, No. 1, pp. 011004, February 2021, 10.1115/1.4047702
  9. F. Browne, B. Rees, G.T-C. Chiu, and N. Jain, “Iterative Learning Control with Time Delay Compensation: An Application to Twin Roll Strip Casting,” IEEE Transactions on Control Systems Technology, Vol. 29, Iss. 1, January 2021, 10.1109/TCST.2020.2971452
  10. N. Bajaj, J.S. Laster, B.W. Boudouris, G.T.-C. Chiu, and J.F. Rhoads, “A Vapor Phase Trinitrotoluene Threshold Detector Enabled by Nonlinear Feedback,” IEEE Sensors Letters, Vol. 4, Iss. 11, pp. 1-4, November 2020, Art no. 2501504, 10.1109/LSENS.2020.3032394
  11. J.N. Hodul, A.K. Murray, N.F. Carneiro, J.R. Meseke, J. Morris, X. He, D. Zemlyanov, G.T.-C. Chiu, J.E. Braun, J.F. Rhoads, and B.W. Boudouris, “Modifying the Surface Chemistry and Nanostructure of Carbon Nanotubes Facilitates the Detection of Aromatic Hydrocarbon Gases,” ACS Applied Nano Materials 2020, Vol. 3, No. 10, pp. 10389-10398, 10.1021/acsanm.0c02295
  12. S. Diaz-Amaya, M. Zhao, J. Allebach, G.T-C. Chiu, and L. Stanciu, “Ionic Strength Influences on Biofunctional Au-Decorated Microparticles for Enhanced Performance in Multiplexed Colorimetric Sensors,” ACS Applied Materials & Interfaces, Vol. 12, Iss. 29, pp. 32397-32409, 10.1021/acsami.0c07636
  13. C. Cheng, Y.J. Moon, S.H. Kim, Y-C. Jeong, J.Y. Hwang, G.T-C. Chiu, and B. Han, “Water-Matrix Interaction at the Drop-Drop Interface during Drop-on-Demand Printing of Hydrogels,” International Journal of Heat and Mass Transfer, Vol. 150, 119327, April 2020, 10.1016/j.ijheatmasstransfer.2020.119327
  14. N. Murrell, R. Bradley, N. Bajaj, J. Whitney, and G.T.-C. Chiu, “New Calibration Method for Implementing Machine Learning (ML) in Low-Cost Sensor Applications,” IEEE Sensor Letters, Vol. 4, Iss. 2, February 2020, 10.1109/LSENS.2020.2971714
  15. F. Browne, G.T-C. Chiu, and N. Jain, “A Nonlinear Dynamic Switched-Mode Model of Twin-Roll Steel Strip Casting,” ASME Journal of Dynamic Systems, Measurements and Control, Vol. 141, No. 8, pp. 081004, August 2019, 10.1115/1.4042952
  16. S. Díaz-Amaya, M. Zhao, L-K. Lin, C. Ostos, J.P. Allebach, G.T-C. Chiu, A. Deering, and L.A. Stanciu, “Inkjet Printed Nanopatterned Aptamer‐Based Sensors for Improved Optical Detection of Foodborne Pathogens,” Small, Vol. 15, 1805342, April 2019, 10.1002/smll.201805342
  17. E.R. Westphal, A. K. Murray, M.P. McConnell, T.J. Fleck, G.T.-C. Chiu, J.F. Rhoads, I.E. Gunduz, and S.F. Son, “The Effects of Confinement on the Fracturing Performance of Printed Nanothermites,” Propellants, Explosives, Pyrotechnics, Vol. 44, Iss. 1, January 2019, 10.1002/prep.201800188
  18. N. Murrell, R. Bradley, N. Bajaj, J. Whitney, and G.T.-C. Chiu, “A Method for Sensor Reduction in a Supervised Machine Learning Classification System,” IEEE/ASME Transactions on Mechatronics, Vol 24, Iss. 1, February 2019, 10.1109/TMECH.2018.2881889
  19. I.E. Gunduz, M.S. McClain, P. Cattani, G.T.-C. Chiu, J.F. Rhoads, and S.F. Son, “3D printing of Extremely Viscous Materials Using Ultrasonic Vibrations,” Additive Manufacturing, Vol. 22, pp. 98-103, August 2018, 10.1016/j.addma.2018.04.029
  20. A. Murry, W. Novotny, T. Fleck, I.E. Gunduz, S. Son, G. Chiu and J. Rhoads, “Selectively-Deposited Energetic Materials: A Feasibility Study of the Piezoelectric Inkjet Printing of Nanothermites,” Additive Manufacturing, Vol. 22, pp. 69-74, August 2018, 10.1016/j.addma.2018.05.003
  21. A. Murray, W. Novotny, N. Bajaj, I. Gunduz, S. Son, G. Chiu, and J. Rhoads, “Piezoelectric Inkjet Printed Metallic Igniters,” Journal of Imaging Science and Technology, Vol. 62, No. 4, pp 40406-1-40406-6, July 2018, 10.2352/J.ImagingSci.Technol.2018.62.4.040406
  22. N. Bajaj, G.T.-C. Chiu, and J. Rhoads, “A Megahertz-Frequency Tunable Piecewise-Linear Electromechanical Resonator Realized via Nonlinear Feedback,” Journal of Sound and Vibration, Vol. 425, pp. 257-274, July 2018, 10.1016/j.jsv.2018.02.053
  23. J-S. Hyun, G.T.-C. Chiu, and S. Zhang, “High-speed and High-accuracy 3D Surface Measurement using a Mechanical Projector,” Optics Express, Vol. 26, Iss. 2, pp. 1474-1487, 2018, 10.1364/OE.26.001474
  24. M. Wadas, M. Tweardy, N. Bajaj, A. Murray, G.T.-C. Chiu, E. Nauman, and J. Rhoads, “Detection of Traumatic Brain Injury Protein Biomarkers with Resonant Microsystems,” IEEE Sensors Letters, Vol. 1, No. 6, pp. 1-4, December 2017, 10.1109/LSENS.2017.2768514
  25. S. Jin, Y. Heo, L-K. Lin, A. Deering, G.T.-C. Chiu, J.P. Allebach and L.A. Stanciu, “Gold Decorated Polystyrene Particles for Lateral Flow Immunodetection of Escherichia coli O157:H7,” Microchimica Acta, Vol. 184, Iss. 12, pp. 4879-4886, December 2017, 10.1007/s00604-017-2524-5
  26. A.K. Murray, T. Isik, V. Ortalan, I.E. Gunduz, S. Son, G.T.-C. Chiu, and J. Rhoads, “Two-Component Additive Manufacturing of Nanothermite Structures via Reactive Inkjet Printing,” Journal of Applied Physics, Vol. 122, Iss. 18, 184901, November 2017. 10.1063/1.4999800
  27. N. Bajaj, J.F. Rhoads, and G.T.-C. Chiu, “Characterization of Resonant Mass Sensors Using Inkjet Deposition,” ASME Journal of Dynamic Systems, Measurements and Control, Vol. 139, No. 11, pp. 114505-1-114505-6, November 2017, 10.1115/1.4036873
  28. T. Fleck, A. Murray, I.E. Gunduz, S. Son, G.T.-C. Chiu, and J. Rhoads, “Additive Manufacturing of Multifunctional Reactive Materials,” Additive Manufacturing, Vol. 17, pp. 176-182, October 2017, 10.1016/j.addma.2017.08.008
  29. T. Fleck, A. Murry, W. Novotny, I.E. Gunduz, S. Son, G.T.-C. Chiu, and J. Rhoads, “Controlled Substrate Destruction using Nanothermite,” Propellants, Explosives, Pyrotechnics, Vol. 42, Iss. 6, pp. 579-584, June 2017, 10.1002/prep.201700008
  30. M. Mukhtar, J. Yi, and G.T.-C. Chiu, “Color Registration Error Reduction in Flatbed Document Scanner using Iterative Velocity Command Synthesis,” Journal of Imaging Science and Technology, Vol. 61, No. 3, pp. pp. 30504-1-10, May, 2017, 10.2352/J.ImagingSci.Technol.2017.61.3.030504
  31. B. Cheng, B.W. Tobalske, D.R. Powers, T.L. Hedrick, S.M. Wethington, G.T.-C. Chiu, and X. Deng, “Flight Mechanics and Control of Escape Maneuvers in Hummingbirds I. Flight Kinematics,” Journal of Experimental Biology, Vol. 219, No. 12, pp. 3518-3531, November 15, 2016, 10.1242/jeb.137539
  32. B. Cheng, B.W. Tobalske, D.R. Powers, T.L. Hedrick, Y. Wang, S.M. Wethington, G.T.-C. Chiu, and X. Deng, “Flight Mechanics and Control of Escape Maneuvers in Hummingbirds II. Aerodynamic Force Production, Flight Control and Performance Limitations,” Journal of Experimental Biology, Vol. 219, No. 12, pp. 3532-3543, November 15, 2016, 10.1242/jeb.137570
  33. S. Sung, N. Bajaj, J. Rhoads, G. Chiu, and B. Boudouris, “Radical Polymers Improve the Metal-Semiconductor Interface in Organic Field-Effect Transistors,” Organic Electronics, Vol. 37, pp. 148-154, October 2016, 10.1016/j.orgel.2016.06.020
  34. B. Han, G.Y. Yun, J.W. Boley, S.H. Kim, J.Y. Hwang, G.T.-C. Chiu, and K. Park, “Dropwise Gelation-Dehydration Kinetics during Drop-on-Demand Printing of Hydrogel-based Materials,” International Journal of Heat and Mass Transfer, Vol. 97, pp. 15-25, June 2016, 10.1016/j.ijheatmasstransfer.2016.01.030
  35. N. Bajaj, A. Sabater, J. Hickey, G.T.-C. Chiu, and J. Rhoads, “Design and Implementation of a Tunable, Duffing-Like Electromechanical Resonator Via Nonlinear Feedback,” IEEE Journal of Microelectromechanical Systems, Vol. 25, Iss. 1, pp. 2-10, February 2016, DOI: 10.1109/JMEMS.2015.2493447
  36. J. Mynderse and G.T.-C. Chiu, “Two Degree-of-Freedom Hysteresis Compensation for a Dynamic Mirror Actuator,” IEEE/ASME Transactions on Mechatronics, Vol. PP, Iss. 99, October 2015, DOI: 10.1109/TMECH.2015.2493038
  37. J. Shelton and G.T.-C. Chiu, “Efficiently Generating the Ballistic Phase of Human-like Aimed Movement,” IEEE/ASME Transactions on Mechatronics, Vol. 19, No. 6, December 2014, DOI: 10.1109/TMECH.2014.2316156
  38. J. Mynderse and G.T.-C. Chiu, “Modeling of a Dynamic Mirror with Antagonistic Piezoelectric Stack Actuation,” ASME Journal of Dynamic Systems, Measurement and Control, Vol. 136, No. 2, pp. 0245011-02405105, March 2014, DOI: 10.1115/1.4025671
  39. J.W. Boley, E.L. White, G.T.-C. Chiu, and R.K. Kramer, “Direct Writing Gallium-Indium Alloy for Stretchable Electronics,” Advanced Functional Materials, Vol. 24, pp 3501-3507, DOI: 10.1002/adfm.201303220

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