ORiD: https://orcid.org/0000-0002-6507-9595

Google Scholar: https://scholar.google.co.in/citations?user=YfSA7c8AAAAJ&hl=en

LIST OF JOURNAL PUBLICATIONS:
1. Rui Miguel Raposo Pinto, Mohammadmahdi Faraji, K B Vinayakumar*
“A 3D‐Printed Printhead: Custom Inkjet Dispenser for Medium Viscosity Fluids”
Advanced Engineering Materials, 25 March 2024
https://onlinelibrary.wiley.com/doi/full/10.1002/adem.202400205

2. Siva Sankar Nemala, João Fernandes, João Rodrigues, Vicente Lopes, Rui MR Pinto, KB Vinayakumar, Ernesto Placidi, Giovanni De Bellis, Pedro Alpuim, Rui S Sampaio, Maria F Montemor, Andrea Capasso
“Sustainable graphene production for solution-processed microsupercapacitors and multipurpose flexible electronics”
Nano Energy Volume 127, August 2024
https://www.sciencedirect.com/science/article/pii/S2211285524005299

3. Hao Yang, Nan Zhang, Shanshan Xie, Mohammadmahdi Faraji, Rui MR Pinto, Pedro M Silva, Wei Ren, Zuo-Guang Ye, Miguel A Cerqueira, KB Vinayakumar*
“Ethylcellulose and Bismuth Sodium Titanate-Barium Zirconate Titanate (BNT-BZT) Composite Fibers for Triboelectric Energy Harvesting”
Materials Today Communications, Available online 28 July 2024
https://www.sciencedirect.com/science/article/pii/S2352492824019093

4. Raquel L Pereira, KB Vinayakumar*, Sanna Sillankorva
“Polymeric Microneedles for Health Care Monitoring: An Emerging Trend”
ACS sensors April 24, 2024
https://pubs.acs.org/doi/full/10.1021/acssensors.4c00612

5. Hao Yang, Rui M. R. Pinto, Pedro González-Losada, Mohammadmahdi Faraji, Rosana Dias, and K. B. Vinayakumar*
“Geometry-Optimized Ferroelectret Prepared by LASER Patterning of an Adhesive Spacer”
IEEE Sensors, Volume: 24, Issue: 7, 01 April 2024
https://ieeexplore.ieee.org/abstract/document/10453464

6. Sandeep Sanjeeva, Jyothilakshmi Rudresh, K. B. Vinayakumar, K. K. Nagaraja
“A strong dependence of sputtering power on c‐axis oriented aluminium nitride on Si (111): A structural and electrical study”
IET Nanodielectrics, 2024
https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/nde2.12076

7. Rui MR Pinto, Siva Sankar, Mohammadmahdi Faraji, Joao Fernandes, Clara Ponte, Giovanni De Bellis, Aritz Retolaza, KB Vinayakumar*, Andrea Capasso
“Material jetting of carbon nano onions for printed electronics”
Nanotechnology, Volume 34, Number 36, 2023
https://iopscience.iop.org/article/10.1088/1361-6528/acdad7/meta

8. K. B. Vinayakumar, Maria Daniela Silva, Stephen Mundy, Pedro González-Losada, Sanna Sillankorva
“Levofloxacin-loaded microneedles produced using 3D-printed molds for Klebsiella pneumoniae biofilm control”
Advanced Therapeutics, 2023,
https://onlinelibrary.wiley.com/doi/full/10.1002/adtp.202200320

9. P González-Losada, M Martins, K.B. Vinayakumar
“Pyroelectrically Polarity Switched Electret for Flexible Invisible Digital Memory and Self-Powered Sensors”
IEEE Sensors Journal 2022/12/21
https://ieeexplore.ieee.org/abstract/document/9996360

10. Hao Yang, Jinyan Zhao, Wei Ren, Zuo-Guang Ye, K. B. Vinayakumar, Rosana A. Dias, Rui M. R. Pinto, Jian Zhuang, and Nan Zhang
“Lead free 0.9Na1/2Bi1/2TiO3–0.1BaZr0.2Ti0.8O3 thinfilm with large piezoelectric electrostrain”
Applied Physics Letter. 121, 000000 (2022);
https://aip.scitation.org/doi/full/10.1063/5.0106934

11. Pedro González-Losada, Marco Martins, Elvira Paz, K. B Vinayakumar, Domingos Pereira, Ana R Cortez, Diogo Elói Aguiam
“Design of Arbitrary Magnetic Patterns on Magnetic Polymer Composite Objects: A Finite Element Modelling Tool”
Polymers 2022, 14, 3713.
https://doi.org/10.3390/polym14183713

12. González-Losada, Pedro, Rui MR Pinto, Mohammadmahdi Faraji, and K. B. Vinayakumar. "Pyroelectrically-Charged Piezoelectrets for Force Sensing."
IEEE Transactions on Dielectrics and Electrical Insulation (2022): https://ieeexplore.ieee.org/document/9771215

13. Pinto, Rui MR, Ved Gund, Rosana Alves Dias, K. K. Nagaraja, and K. B. Vinayakumar.
"CMOS-Integrated Aluminum Nitride MEMS: A Review."
IEEE Journal of Microelectromechanical Systems (2022), https://ieeexplore.ieee.org/document/9774849

14. Edoardo Sotgiu, Pedro González-Losada, Rui M. R. Pinto, Hao Yang, Mohammadmahdi Faraji, and K. B. Vinayakumar
“Pyroelectrically Charged Flexible Ferroelectret-Based Tactile Sensor for Surface Texture Detection”
Electronics 2022, 11(15), 2329:
https://doi.org/10.3390/electronics11152329

15. Ani, Aninamol, P. Poornesh, Albin Antony, Igor V. Shchetinin, K. K. Nagaraja, Saikat Chattopadhyay, and K. B. Vinayakumar.
"Impact of Ag on the Limit of Detection towards NH3-Sensing in Spray-Coated WO3 Thin-Films."
Sensors 22, no. 5 (2022): 2033.:
https://doi.org/10.3390/s22052033

16. Pinto, Rui MR, Ved Gund, Carlos Calaza, K. K. Nagaraja, and K. B. Vinayakumar.
"Piezoelectric aluminum nitride thin-films: A review of wet and dry etching techniques." Microelectronic Engineering (2022): 111753.:
https://doi.org/10.1016/j.mee.2022.111753

17. K. B. Vinayakumar, Ved Gund, Amit Lal
“Pyroelectric lithium niobate electron emission-based ion-pump”,
Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 39(2), 2021, 024202.: https://doi.org/10.1116/6.0000882

18. Shrihari N V, K. B. Vinayakumar , Nagaraja K K
“Magnetoelectric coupling in bismuth ferrite: Challenges and perspectives”
  Coatings, 2020, 10 (12), 1221.:
https://doi.org/10.3390/coatings10121221

19. Pires, L. R., K. B. Vinayakumar., Turos, M., Miguel, V., & Gaspar, J.
“A Perspective on Microneedle-Based Drug Delivery and Diagnostics in Paediatrics”
Journal of personalized medicine, 9(4), 49, (2019).:
https://doi.org/10.3390/jpm9040049

20. K. B. Vinayakumar, Ardanuc, S., Ji, Q., Persaud, A., Seidl, P., Schenkel, T., & Lal, A.
“Demonstration of waferscale voltage amplifier and electrostatic quadrupole focusing array for compact linear accelerators”
Journal of Applied Physics, 125(19), 194901, (2019).:
https://doi.org/10.1063/1.5091979

21. Gund, V., Ruyack, A., Leonardi, A., K. B. Vinayakumar, Ober, C., & Lal, A.
“Spatially Controlled Transience of Graphene‐Polymer Electronics with Silicon Singulation“
Advanced Functional Materials, 1900592, (2019).:
https://doi.org/10.1002/adfm.201900592

22. P.A. Seidl,A. Persaud,W. Ghiorso, Q. Ji, W.L. Waldron, K. B. Vinayakumar A. Lal, and T. Schenkel
“Source-to-accelerator quadrupole matching section for a compact linear accelerator”
Review of Scientific Instruments, Vol 89, 053302 (2018):
https://doi.org/10.1063/1.5023415

23. A. Persaud, Q. Ji, E. Feinberg, P.A. Seidl, W.L. Waldron, T. Schenkel, A. Lal, K. B. Vinayakumar, and S. Ardanuc,
“A compact linear accelerator based on a scalable microelectromechanical-system RF-structure”
Review of Scientific Instruments, Vol 88 no. 6, (2017):
https://doi.org/10.1063/1.4984969

24. K. B. Vinayakumar, Girish nadiger, Vikas r shetty, N.S Dinesh, M.M Nayak and K Rajanna, ”Packaged peristaltic Micropump for Controlled Drug Delivery Application”
Review of Scientific Instruments 88, no.1 (2016) :
https://doi.org/10.1063/1.4973513

25. K. B. Vinayakumar, Prachit G. Kulkarni, M. M. Nayak, N. S. Dinesh, Gopalkrishna M. Hegde, S. G. Ramachandra, and K. Rajanna.
"A hollow stainless steel microneedle array to deliver insulin to a diabetic rat."
Journal of Micromechanics and Microengineering 26, no. 6 (2016): 065013 (Cover Page): https://iopscience.iop.org/article/10.1088/0960-1317/26/6/065013

26. K. B. Vinayakumar, G. Naveen Kumar, M. M. Nayak, N. S. Dinesh, and K. Rajanna.
"Peristaltic pump-based low range pressure sensor calibration system."
Review of Scientific Instruments 86, no. 11 (2015): 115113. :
https://doi.org/10.1063/1.4935837

27. K. B. Vinayakumar, G. M. Hegde, M. M. Nayak, N.S Dinesh, K. Rajanna,
“Development of Cup Shaped Microneedle Array for Transdermal Drug Delivery”
Biointerphases 10(2), June 2015, 021008-1. :
https://doi.org/10.1116/1.4919779

28. K. B. Vinayakumar, G. M. Hegde, M. M. Nayak, N.S Dinesh, K. Rajanna,
“Fabrication and characterization of gold coated hollow silicon microneedle array for drug delivery”
Microelectronic Engineering 128 (2014) 12–18: https://www.sciencedirect.com/science/article/pii/S0167931714002524

LIST OF CONFERENCE PROCEEDINGS:
1. Rui Pinto, Mohammadmahdi Faraji, and K.B. Vinayakumar
“Textile-Based Stretchable Strain Sensor for Human Activity and Health Monitoring”
Transducers 2023 Conference, Accepted for publication
https://ieeexplore.ieee.org/abstract/document/10516871

2. Rui Pinto, Mohammadmahdi Faraji, and K.B. Vinayakumar
“Light-Controlled Pyroelectric Effect: Direct Conversion of Light-Induced Heat to Physical Actuation”
Transducers 2023 Conference, Accepted for publication
https://ieeexplore.ieee.org/abstract/document/10517184

3. H Yang, RMR Pinto, P González, A Ainla, M Faraji, and K.B. Vinayakumar
“Self-Powered Flexible Piezoelectret Array for Wearable Applications”
2023 IEEE 36th International Conference on Micro Electro Mechanical Systems (IEEE MEMS), 2023/1/15
https://ieeexplore.ieee.org/abstract/document/10052352

4. González-Losada, P., Yang, H., Pinto, R. M., Faraji, M., Dias, R., & K. B. Vinayakumar
“Flexible ferroelectret for zero power wearable application”.
In 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (pp. 1-4). IEEE.:
https://ieeexplore.ieee.org/document/9781488

5. Pinto, R. M., Nemala, S. S., Faraji, M., Capasso, A., & K. B. Vinayakumar.
“Inkjet-Printing of Carbon Nano Onions for Sensor Applications in Flexible Printed Electronics”.
In 2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS) (pp. 1-4). IEEE.:
https://ieeexplore.ieee.org/document/9781548

6. Pinto, Rui, Pedro González-Losada, Mohammadmahdi Faraji, and K. B. Vinayakumar. "Pyroelectrically-Charged Flexible Piezoelectret Sensors: Route Towards Sustainable Functional Electronics."
In 2022 IEEE 35th MEMS, pp. 547-550. IEEE, 2022.: https://ieeexplore.ieee.org/document/9699473

7. González-Losada, Pedro, Marco Martins, and K. B. Vinayakumar.
"Pyroelectrically Generated High Voltage to Digitally Code Invisible Electrostatic Information on Flexible Polymer for Application in Security and Anti-Counterfeit."
In 2022 IEEE 35th MEMS, pp. 473-476. IEEE, 2022.: https://ieeexplore.ieee.org/document/9699558

8. Pedro Gonzalez, Filipe Alves, Marco Martin, Stephan Mundy, Rosana Dias and K. B. Vinayakumar “Pyroelectrically Rechargeable Electret for Continuous Vibration Energy Harvester”
In 2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers) (pp. 928-931). IEEE. :
https://ieeexplore.ieee.org/document/9495485

9. K. B. Vinayakumar, Marco Martins, João Gaspar, and Tanya Hutter
“Ionization Potential Tunable Pyroelectric Ambient Pressure Multi-Gas Detection Platform”
In 2021 IEEE 34th International Conference on Micro Electro Mechanical Systems (MEMS) (pp. 795-798). IEEE.:
https://ieeexplore.ieee.org/abstract/document/9375386

10. Di Ni, K. B. Vinayakumar, Amit Lal
"Multi Kilovolt Lithium Niobate Pyroelectric Cantilever Switched Power Supply"
IEEE MEMS 2019, Coex, Seoul, South Korea, 27-31 January 2018 :  https://ieeexplore.ieee.org/document/8870799

11. Di Ni, Adarsh Ravi, K. B. Vinayakumar and Amit Lal
"A Mechanically Tunable GHz Passive Voltage Element using Microstrip Resonator"
PowerMEMS 2019, Florida, USA, 4-7 December 2018: https://iopscience.iop.org/article/10.1088/1742-6596/1407/1/012051

12. K. B. Vinayakumar, A. Persaud, P. A. Seidl, Q. Ji, W. L. Waldron, T. Schenkel, S. Ardanuc, and A. Lal
“Waferscale Electrostatic Quadrupole Array for Multiple Ion Beam Manipulation”
IEEE MEMS 2018, Belfast, Northern Ireland, UK, 21-25 January 2018: https://ieeexplore.ieee.org/document/8346681

13. V. Gund , A. Ruyack, K. B. Vinayakumar, C. K. Ober, A. Lal
“Individually detachable polymer-silicon micro-parts for vaporizable electronics”
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2017 19th International Conference, Taiwan :
https://ieeexplore.ieee.org/abstract/document/7994141

14. Persaud, P. A. Seidl, Q. Ji, W. L. Waldron, T. Schenkel, S. Ardanuc, K. B. Vinayakumar, Z.A. Schaffer, A. Lal,
“A compact MEMS-based ion accelerator”
Physics Procedia, 2017, Vol 90:
https://doi.org/10.1016/j.phpro.2017.09.040

15. K. B. Vinayakumar, V. Gund, N. Lambert, S. Lodha, and A. Lal,
“Enhanced Lithium Niobate based pyroelectric ionization for chip-scale ion mobility-based gas sensing”,
IEEE Sensors, 2016 USA :
https://ieeexplore.ieee.org/abstract/document/7808451