Publications

Journal Papers

● D. Duran-Arteaga, W. Chen, D. Rackus and V. Valente. Selective laser etching fabrication of stacked microporous membranes for multisize particle separation in 3D microfluidics. Sci Rep 15, 36236 (2025). https://doi.org/10.1038/s41598-025-20267-4. Selective laser etching fabrication of stacked microporous membranes for multisize particle separation in 3D microfluidics | Scientific Reports
● S. Darbasi, Y. S. Shama, E. Abdel-Rahman and V. Valente. Design and analysis of a dual-actuator force-balanced MEMS pressure sensor. J. Micromech. Microeng. 35 085001, 2025.
● V. Valente and H. Ashrafirad. Time-based wireless synchrounous detection of bioimpedance signals. IET Electronics Letters,61: e70181, 2025. https://doi.org/10.1049/ell2.70181.
● N. Becker, Q. Currier-Moritsugu and V. Valente. Tuned Amplifier With Embedded Dual-Parameter LC Sensor. IEEE Sensors Letters, vol. 9, no. 1, pp. 1-4, Jan. 2025, Art no. 5500304, doi: 10.1109/LSENS.2024.3508272.
● Andrea Celentano , Carmine Paolino , Fabio Pareschi, Virgilio Valente, Riccardo Rovatti, Wouter A. Serdijn, Gianluca Setti. A Primary-side Maximum Efficiency Transfer Solution in Wireless Power Transfer Systems: Theory and Validation. TechRxiv. April 07, 2023.
● Valente, V. Evolution of Biotelemetry in Medical Devices: From Radio Pills to mm-Scale Implants. IEEE Transactions on Biomedical Circuits and Systems, vol. 16, no. 4, pp. 580-599, Aug. 2022.

——————— Prior to Toronto Metropolitan University ———————
● Liu, Y., Urso, A., da Ponte, R. M., Costa, T., Valente, V., Giagka, V., Serdijn, W. A., Constandinou, T. G., & Denison, T. Bidirectional bioelectronic interfaces: System design and circuit implications. IEEE Solid-State Circuits Magazine, 12(2), 30–46, 2020.
● Valente, V., Neshatvar, N., Pilavaki, E., Schormans, M., & Demosthenous, A. 1.2-V Energy-Efficient Wireless CMOS Potentiostat for Amperometric Measurements. IEEE Transactions on Circuits and Systems II: Express Briefs, 67(10), 1700–1704, 2019.
● Schormans, M., Jiang, D., Valente, V., & Demosthenous, A. Short-range quality-factor modulation (SQuirM) for low power high speed inductive data transfer. IEEE Transactions on Circuits and Systems I: Regular Papers, 66(9), 3254–3265, 2019.
● Schormans, M., Valente, V., & Demosthenous, A. (2018). A low-power, wireless, capacitive sensing frontend based on a self-oscillating inductive link. IEEE Transactions on Circuits and Systems I: Regular Papers, 65(9), 2645–2656.
● Schormans, M., Valente, V., & Demosthenous, A. (2018). Practical inductive link design for biomedical wireless power transfer: A tutorial. IEEE Transactions on Biomedical Circuits and Systems, 12(5), 1112–1130.
● Pilavaki, E., Valente, V., & Demosthenous, A. (2018). CMOS image sensor for lateral flow immunoassay readers. IEEE Transactions on Circuits and Systems II: Express Briefs, 65(10), 1405–1409.
● Liu, X., Valente, V., Zong, Z., Jiang, D., Donaldson, N., & Demosthenous, A. (2016). An implantable stimulator with safety sensors in standard cmos process for active books. IEEE Sensors Journal, 16(19), 7161–7172.
● Valente, V., & Demosthenous, A. (2016). Wideband fully-programmable dual-mode CMOS analogue front-end for electrical impedance spectroscopy. Sensors, 16(8), 1159.
● Schormans, M., Valente, V., & Demosthenous, A. (2016). Frequency splitting analysis and compensation method for inductive wireless powering of implantable biosensors. Sensors, 16(8), 1229.
● Valente, V., Eder, C., Donaldson, N., & Demosthenous, A. (2014). A high-power CMOS class-D amplifier for inductive-link medical transmitters. IEEE Transactions on Power Electronics, 30(8), 4477–4488.
● Eder, C., Valente, V., Donaldson, N., & Demosthenous, A. (2014). A CMOS smart temperature and humidity sensor with combined readout. Sensors, 14(9), 17192–17211.
● Valente, V., Demosthenous, A., & Bayford, R. (2011). A tripolar current-steering stimulator ASIC for field shaping in deep brain stimulation. IEEE Transactions on Biomedical Circuits and Systems, 6(3), 197–207.

Conference Papers

●Ashrafirad, H. and Valente, V. Time-Based Sensor Readout Circuit With Dual-Frequency Pulse-Harmonic Modulation (PHM) Wireless Transmitter. 2024 IEEE Midwest Symposium on Circuits and Systems (MWSCAS), Springfield, USA.
● S. Patel, S. Darbasi, M. A. Antoniades and V. Valente. Inductively-Coupled MEMS Pressure Sensor. 2023 IEEE Biomedical Circuits and Systems Conference (BioCAS), Toronto, ON, Canada, 2023, pp. 1-5, doi: 10.1109/BioCAS58349.2023.10389171.
●Ashrafirad, H. and Valente, V. A time-based CMOS readout for amperometric biosensors. 2023 IEEE International Conference on PhD Research in Microelectronics and Electronics (PRIME), Valencia, Spain
● Celentano, A., Pareschi, F., Valente, V., Rovatti, R., Serdijn, W. A., & Setti, G. A Comparison between Class-E DC-DC Design Methodologies for Wireless Power Transfer. 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), 71–74, East Lansing, USA.
● Celentano, A., Pareschi, F., Valente, V., Rovatti, R., Serdijn, W. A., & Setti, G. A Wireless Power Transfer System for Biomedical Implants based on an isolated Class-E DC-DC Converter with Power Regulation Capability. 2020 IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS), 190–193, Springfield, USA.

——————— Prior to Toronto Metropolitan University ———————
● Guan, R., Emmer, K. M., Valente, V., & Serdijn, W. A. (2019). A Power-Efficient and Safe Neural Stimulator Using Ultra-High Frequency Current Pulses for Nerve Conduction Block. 2019 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), 397–400.
● Valente, V., Schormans, M., & Demosthenous, A. (2018). An energy-efficient 1.2 V 4-channel wireless CMOS potentiostat for amperometric biosensors. 2018 IEEE International Symposium on Circuits and Systems (ISCAS), 1–4.
● Schormans, M., Valente, V., & Demosthenous, A. (2018). Intermittent Excitation of High-Q Resonators for Low-Power High-Speed Clock Generation. 2018 IEEE International Symposium on Circuits and Systems (ISCAS), 1–4.
● Pilavaki, E., Valente, V., Serdijn, W., & Demosthenous, A. (2017). Compact pixel architecture for cmos lateral flow immunoassay readout systems. 2017 13th Conference on Ph. D. Research in Microelectronics and Electronics (PRIME), 313–316.
● Valente, V., & Demosthenous, A. (2017). A 32-by-32 CMOS microelectrode array for capacitive biosensing and impedance spectroscopy. 2017 IEEE International Symposium on Circuits and Systems (ISCAS), 1–4.
● Schormans, M., Valente, V., & Demosthenous, A. (2017). Single-pulse harmonic modulation for short range biomedical inductive data transfer. 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS), 1–4.
● Jiang, D., Eder, C., Perkins, T. A., Vanhoestenberghe, A., Schormans, M., Liu, F., Valente, V., Donaldson, N., & Demosthenous, A. (2016). An implantable wireless multi-channel neural prosthesis for epidural stimulation. 2016 IEEE International Symposium on Circuits and Systems (ISCAS), 2026–2029.
● Valente, V., Jiang, D., & Demosthenous, A. (2016). Dual-mode CMOS analog front-end (AFE) for electrical impedance spectroscopy (EIS) systems. 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 1914–1917.
● Valente, V., Jiang, D., & Demosthenous, A. (2015). Design of a wideband CMOS impedance spectroscopy ASIC analog front-end for multichannel biosensor interfaces. 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 885–888.
● Schormans, M., Valente, V., & Demosthenous, A. (2015). Efficiency optimization of class-D biomedical inductive wireless power transfer systems by means of frequency adjustment. 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 5473–5476.
● Mohammed, A., Valente, V., Bayford, R., & Demosthenous, A. (2015). Output stage of a dynamic current steering deep brain stimulator. 2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS), 81–84.
● Valente, V., Demosthenous, A., & Bayford, R. (2013). Output stage of a current-steering multipolar and multisite deep brain stimulator. 2013 IEEE Biomedical Circuits and Systems Conference (BioCAS), 85–88.
● Valente, V., & Demosthenous, A. (2013). CMOS analog power meter and delay line for automatic efficiency optimization in medical power transmitters. 2013 IEEE 20th International Conference on Electronics, Circuits, and Systems (ICECS), 249–252.
● Valente, V., Eder, C., Demosthenous, A., & Donaldson, N. (2012). Towards a closed-loop transmitter system with integrated class-D amplifier for coupling-insensitive powering of implants. 2012 19th IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2012), 29–32.
● Tong, K., Valente, V., Demosthenous, A., & Bayford, R. (2011). Achieving electric field steering in deep brain stimulation. 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS), 245–248.
● Valente, V., Demosthenous, A., & Bayford, R. (2010). Design of a current-steering implantable stimulator with electric field shifting for deep brain stimulation. 2010 Biomedical Circuits and Systems Conference (BioCAS), 162–165.
● Valente, V., Demosthenous, A., & Bayford, R. (2010). Electric field focusing and shifting technique in deep brain stimulation using a dynamic tripolar current source. Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2091–2094.
● Valente, V., Demosthenous, A., & Bayford, R. (2008). Towards the development of phased array systems for deep brain stimulation. 2008 IEEE Biomedical Circuits and Systems Conference, 261–264.

Talks, Abstracts and Poster Presentations

● Irene Miah, Ashkan Koushanpour, Darius Rackus and Virgilio Valente. . Microfluidic microneedle platform for real-time transdermal muscle injury monitoring. CSME-CFDSC-CSR 2025 International Congress, Montreal, May 25-28, 2025.
●V. Valente. iBEST Visiting Lecturer Series. Wireless Medical Sensors. From Patients in Labs to Labs in Patients. Institute for Biomedical Engineering, Science and Technology (iBEST), April 2022.
● Yelkenci, A., da Ponte, R., & Valente, V. (2019). Co-integration of flip-tip patch clamp and microelectrode arrays for in-vitro recording of electrical activity of heart cells. 7th Dutch Biomedical Engineering Conf. (BME) 2019.
● Bedini, F., & Valente, V. (2019). Lab-on-chip device for high-throughput multi-analysis single-cell studies. 7th Dutch Biomedical Engineering Conf. (BME) 2019.
● Sfakianou, A., de Vrij, F. M. S., Kushner, S. A., & Valente, V. (2019). Microelectrode array (MEA) measurements from human pluripotent stem cell-derived neural cultures for psychiatric disorders. 7th Dutch Biomedical Engineering Conf. (BME) 2019.
● Jiang, D., Eder, C., Perkins, T. A., Vanhoestenberghe, A., Schormans, M., Liu, F., Valente, V., Donaldson, N., & Demosthenous, A. (2016). Live demonstration: An implantable wireless multi-channel neural prosthesis for epidural stimulation. 2016 IEEE International Symposium on Circuits and Systems (ISCAS), 2372.
● Giagka, V., Eder, C., Valente, V., Vanhoestenberghe, A., Donaldson, N., & Demosthenous, A. (2013). A dedicated electrode driving ASIC for epidural spinal cord stimulation in rats. 2013 IEEE 20th International Conference on Electronics, Circuits, and Systems (ICECS), 469–472.
● Valente, V., Demosthenous, A., & Bayford, R. (2009). Modeling the Behavior of Phased Arrays in Brain Tissue: Application to Deep Brain Stimulation. COMSOL Conference.

Theses/Reports

● Saad Ahmed. Modeling, simulation and fabrication of a high-throughput sperm preparation device. M.Eng in BME, TMU (2025)
● Irene Miah. Microfluific microneedle platform for real-time transdermal muscle injury monitoring. M.Sc. in BME, TMU (2025)
● Kanhchana Ly. Modeling and simulation of a piezoelectric microprobe array for sub-mm spatial mapping of tissue stiffness. M.Eng. in BME, TMU (2025)
● Shae Smith. Evaluation of the electrochemical performance and aging of PEDOT:PSS electrodes for implantable biosensors. M.Sc. in BME, TMU (2025)
● Diego Duran-Arteaga. Fabrication of multilayer microfilters using selective laser etching and laser microwelding. M.Eng in BME, TMU (2024)
● Sneh Patel. Investigation of spiral-based structures in inductively-coupled MEMS pressure sensors and implantable antenna. MSc. EE, TMU (2024) – Co-supervised with Dr. M. Antoniades.
● Pravin Rajanayagam. Inductive MEMS pressure sensor. M.Eng BME, TMU (2022)

——————— Prior to Toronto Metropolitan University ———————
● Brian Nanhekhan. PWM-based readout unit for wearable transthoracic bioimpedance measurements. MSc EE, TU Delft (2021)
● Asli Yelkenci. A 16-channel CMOS reconfigurable recording unit for simultaneous in-vitro microelectrode array (MEA) recording and current-clamp measurements. MSc EE, TU Delft (2020). Winner of the Best Academic Thesis Award at CadenceLive Europe 2021 (Academic and Entrepreneur Tracks at CadenceLIVE Europe 2021 – Cadence Academic Network – Cadence Blogs – Cadence Community)
● Shengjie Chen. A 3-by-3 400-MHz LC microsensor array for wireless capacitive biosensing. MSc EE, TU Delft (2020)
● Gayatri Agarwal. PVT-Tolerant Transconductor for Low-Voltage Highly-Selective High-Frequency Filter of MRI. MSc EE, Philips/TU Delft (2020)
● Nikhita Baladari. Oscillator-based analog-to-digital converter for action potential readout in microelectrode arrays. MSc BME, ETHZ/TU Delft (2020)
●Areti Skafianou. Microelectrode array measurements from human-induced pluripotent stem cell-derived neural cell cultures for psychiatric disorders. MSc BME, EMC/TU Delft (2019)
● Y. Sai Reddy Vyza. Capacitive microelectrode arrays for in-vitro analysis of neural activity. MSc EE, ETHZ/TU Delft (2019)
● Federico Bedini. Lab-on-chip device for high-throughput multi-analysis single-cell studies. MSc BME, TU Delft/ Politecnico di Torino (2019)
● Makrina Sekeri. Impedance-based bioassay for characterization of single malignant melanoma cancer cells using CMOS-MEA systems. MSc BME, IMEC/TU Delft MSc (2018)
● Matthew Schormans. Inductive links for biomedical wireless power and data telemetry. PhD EE, UCL (UK).