- Gidado, I.M., Nwokoye, I.I., Triantis, I.F., Qassem, M. and Kyriacou, P.A. (2024). Multi-Modal Spectroscopic Assessment of Skin Hydration. Sensors, 24(5), pp. 1419–1419. doi:10.3390/s24051419.
- Rabbani, M., Rahman, E., Powner, M.B. and Triantis, I.F. (2024). Making Sense of Electrical Stimulation: A Meta-analysis for Wound Healing. Annals of Biomedical Engineering, 52(2), pp. 153–177. doi:10.1007/s10439-023-03371-2.
- Rahman, E., Liatsis, P., Hashim, Z.Q., Kyriacou, P.A. and Triantis, I.F. (2024). A Quadruple-Sweep Bioimpedance Sensing Method for Arterial Stenosis Detection. IEEE Access, 12, pp. 18594–18605. doi:10.1109/access.2024.3356564.
- Rabbani, M., Rahman, E., Al Aishan, A., Powner, M.B. and Triantis, I.F. (2023). A Low-Cost, Scalable, and Configurable Multi-Electrode System for Electrical Bio-Interfacing with In-Vitro Cell Cultures. Applied Sciences, 14(1), pp. 162–162. doi:10.3390/app14010162.
- Gidado, I.M., Qassem, M., Triantis, I.F. and Kyriacou, P.A. (2022). Review of Advances in the Measurement of Skin Hydration Based on Sensing of Optical and Electrical Tissue Properties. Sensors, 22(19), pp. 7151–7151. doi:10.3390/s22197151.
- Sheikh, M., Qassem, M., Triantis, I.F. and Kyriacou, P.A. (2022). Advances in Therapeutic Monitoring of Lithium in the Management of Bipolar Disorder. Sensors, 22(3), pp. 736–736. doi:10.3390/s22030736.
- Hantschke, M. and Triantis, I.F. (2022). Optimisation of an Electrical Impedance Sensor for Use in Microfluidic Chip Electrophoresis. IEEE Sensors Journal, 22(1), pp. 16–24. doi:10.1109/jsen.2021.3127320.
- Jenkins, E.P.W., Finch, A., Gerigk, M., Triantis, I.F., Watts, C. and Malliaras, G.G. (2021). Electrotherapies for Glioblastoma. Advanced Science, 8(18). doi:10.1002/advs.202100978.
- Hantschke, M. and Triantis, I.F. (2021). Modeling the Impact of Sensitivity Distribution Variations of Tetrapolar Impedance Configurations in Microfluidic Analytical Devices. IEEE Sensors Journal, 21(2), pp. 1655–1664. doi:10.1109/jsen.2020.3019170.
- Hashim, Z.Q., Constantinou, L. and Triantis, I.F. (2020). Modelling Dynamically Re-Sizeable Electrodes (DRE) for Targeted Transcutaneous Measurements in Impedance Plethysmography. IEEE Transactions on Biomedical Circuits and Systems, 14(1), pp. 104–112. doi:10.1109/tbcas.2019.2959437.
- Qassem, M., Constantinou, L., Triantis, I.F., Hickey, M., Palazidou, E. and Kyriacou, P.A. (2019). A Method for Rapid, Reliable, and Low-Volume Measurement of Lithium in Blood for Use in Bipolar Disorder Treatment Management. IEEE Transactions on Biomedical Engineering, 66(1), pp. 130–137. doi:10.1109/tbme.2018.2836148.
- Rahman, E., Powner, M.B., Kyriacou, P.A. and Triantis, I.F. (2018). Assessment of the Complex Refractive Indices of Xenopus Laevis Sciatic Nerve for the Optimisation of Optical (NIR) Neurostimulation. IEEE Transactions on Neural Systems and Rehabilitation Engineering. doi:10.1109/TNSRE.2018.2878107.
- Qassem, M., Triantis, I., Hickey, M., Palazidou, E. and Kyriacou, P. (2018). Methodology for rapid assessment of blood lithium levels in ultramicro volumes of blood plasma for applications in personal monitoring of patients with bipolar mood disorder. Journal of Biomedical Optics, 23(10), pp. 1–1. doi:10.1117/1.jbo.23.10.107004.
- Constantinou, L., Triantis, I., Hickey, M. and Kyriacou, P.A. (2016). On the merits of tetrapolar impedance spectroscopy for monitoring lithium concentration variations in human blood plasma. IEEE Transactions on Biomedical Engineering pp. 1–1. doi:10.1109/tbme.2016.2570125.
- May, J., Hickey, M., Triantis, I., Palazidou, E. and Kyriacou, P.A. (2015). Spectrophotometric analysis of lithium carbonate used for bipolar disorder. Biomedical Optics Express, 6(3), pp. 1067–1067. doi:10.1364/boe.6.001067.
- Kassanos, P., Constantinou, L., Triantis, I.F. and Demosthenous, A. (2014). An Integrated Analog Readout for Multi-Frequency Bioimpedance Measurements. IEEE Sensors Journal, 14(8), pp. 2792–2800. doi:10.1109/jsen.2014.2315963.
- Shen, Y., Tsang, K.F., Lee, W.C., Hung, F.H., Triantis, I.F. and Xuan, K. (2014). Design of low‐phase‐noise CMOS transformer‐based gate‐coupled quadrature VCO. Electronics Letters, 50(6), pp. 434–436. doi:10.1049/el.2014.0093.
- Constantinou, L., Triantis, I.F., Bayford, R. and Demosthenous, A. (2014). High-Power CMOS Current Driver With Accurate Transconductance for Electrical Impedance Tomography. IEEE Transactions on Biomedical Circuits and Systems.
- Kassanos, P., Triantis, I.F. and Demosthenous, A. (2013). A CMOS magnitude/phase measurement chip for impedance spectroscopy. IEEE Sensors Journal, 13(6), pp. 2229–2236. doi:10.1109/JSEN.2013.2251628.
- Mou, Z., Triantis, I.F., Woods, V.M., Toumazou, C. and Nikolic, K. (2012). A simulation study of the combined thermoelectric extracellular stimulation of the sciatic nerve of the Xenopus laevis: the localized transient heat block. IEEE Trans Biomed Eng, 59(6), pp. 1758–1769. doi:10.1109/TBME.2012.2194146.
- Woods, V.M., Triantis, I.F. and Toumazou, C. (2011). Offset prediction for charge-balanced stimulus waveforms. Journal of Neural Engineering, 8(4). doi:10.1088/1741-2560/8/4/046032.
- Sharma, S., Moniz, A.R.B., Triantis, I., Michelakis, K., Trzebinski, J., Azarbadegan, A. … Cass, A. (2011). An integrated silicon sensor with microfluidic chip for monitoring potassium and pH. Microfluidics and Nanofluidics, 10(5), pp. 1119–1125. doi:10.1007/s10404-010-0740-y.
- Triantis, I.F. and Demosthenous, A. (2008). Tripolar-cuff deviation from ideal model: Assessment by bioelectric field simulations and saline-bath experiments. Medical Engineering and Physics, 30(5), pp. 550–562. doi:10.1016/j.medengphy.2007.06.002.
- Triantis, I.F. and Demosthenous, A. (2006). The effect of interference source proximity on cuff imbalance. IEEE Transactions on Biomedical Engineering, 53(2), pp. 354–357. doi:10.1109/TBME.2005.862569.
- Demosthenous, A. and Triantis, I.F. (2005). An adaptive ENG amplifier for tripolar cuff electrodes. IEEE Journal of Solid-State Circuits, 40(2), pp. 412–420. doi:10.1109/JSSC.2004.840957.
- Triantis, I.F., Demosthenous, A. and Donaldson, N. (2005). On cuff imbalance and tripolar ENG amplifier configurations. IEEE Transactions on Biomedical Engineering, 52(2), pp. 314–320. doi:10.1109/TBME.2004.840470.
- Demosthenous, A., Taylor, J., Triantis, I.F., Rieger, R. and Donaldson, N. (2004). Design of an adaptive interference reduction system for nerve-cuff electrode recording. IEEE Transactions on Circuits and Systems I: Regular Papers, 51(4), pp. 629–639. doi:10.1109/TCSI.2004.823677.
Contact details
Address
Northampton Square
London EC1V 0HB
United Kingdom
About
Overview
Dr Iasonas* F. Triantis a Senior Lecturer at the Research Centre for Biomedical Engineering (RCBE), City, University of London. He is conducting interdisciplinary research in medical devices for electroceuticals, neural engineering and bioimpedance. More specifically, his research focuses on opto-electrical stimulation, bioimpedance, blood dielectric spectroscopy, electrical impedance tomography front-end design, and FEM sensor-tissue simulations for sensor optimization. Since 2014, he has raised £1.4M in research funding from NiHR, UKRI (Innov. UK, EPSRC), and industry and a further £1.6M for developing and equipping laboratories.
He is one of the sixteen 2023 awardees of the Royal Academy of Engineering Industrial Fellowship carrying out research at Delta-T devices Ltd to develop plant health biosensors. He recently co-founded and jointly leads the "Biomodulation Technology" research team with Dr Mike Powner, a neurobiologist from the School of Health & Psychological Sciences, including 3 postdocs, and 4 PhD students. The team aims to improve human health through personalized therapy for conditions like diabetes, wound healing, and peripheral arterial disease, and in parallel using his bio-interfacing techniques in agricultural/environmental applications for crop sustainability and food security.
Previously (2010-12) he was a Senior Researcher at the Electronic and Electrical Engineering Department, UCL, focusing on front end ASICs for electrical impedance tomography (EIT). Between 2005-10 he was a Research Associate at Imperial College focusing on multi-modal neuroprostheses and vagus nerve interfaces. Between 2000-5 he was Research Assistant at UCL, where he also received his PhD on implantable neural amplifiers. In 2000 he received an Electronic Engineering Meng from UMIST.
He has authored/co-authored more than 75 research outputs, including journal publications (mostly Q1 max IF 17), international conference papers, book chapters, and patents. He has served as Programme Director for two Biomedical Engineering MSc courses, the later being the MSc in Biomedical Engineering with Data Analytics which will run in 2024. He has carried out teaching in both undergraduate and postgraduate levels, covering nine different modules, many as module lead, including microelectronics, analogue electronics, biomedical instrumentation, and introduction to biomedical engineering. He received an EEE departmental Teaching Award and was a top-three finalist for both City's Academic Impact Awards and President Awards.
He is a Senior IEEE Member and has reviewed numerous research proposals and journal papers. He supervised/co-supervised two PostDocs and nine PhD researchers to project completion and examined over 10 PhD vivas (internal/external). His collaborations include the University of Cambridge (Sabbatical in Bioelectronics), Uni. of Surrey / Surrey and Sussex NHS Trust (Sabbatical: Diabetic Foot clinics), and BARTS and his industrial partners include GMD Ltd., TSL Ltd., and Delta-T Devices Ltd.
(*Iasonas, Iason or Jason)
Qualifications
- PhD Electronic Engineering (Biomedical Microelectronics), University College London, United Kingdom, 2005
- MEng Electronic Engineering, University of Manchester, United Kingdom, 2000
Employment
- Senior Lecturer, City, University of London, 2014 – present
- Lecturer, City, University of London, 2012 – 2014
- Senior Research Associate, University College London, 2010 – 2012
- Research Associate, Imperial College London, 2005 – 2010
- Research Assistant & Teaching Assistant, University College London, 2000 – 2005
Memberships of committees
- Member, IPEM, Feb 2024 – Jan 2025
Memberships of professional organisations
- Senior Member, IEEE, 2002 – present
Research
Dr Triantis is conducting interdisciplinary research in analogue bioelectronics and medical devices with a focus on electroceuticals for neural engineering and bioimpedance sensing. His research encompasses the development of targeted diagnostic and therapeutic technology; new sensing methods for point-of-care diagnostics; and empowering patients by improving therapy management. He has worked on technology applicable to spinal cord injury, vagus nerve stimulation, lung and bowel cancer imaging, mental health therapy management, peripheral vascular disease, and wound healing. His research work is documented in more than 70 journal (mostly Q1, with IF up to 16.8) and international conference papers, book chapters and patents.
Publications
Publications by category
Chapters (3)
- TRIANTIS, I., Radomska-Botelho Moniz, A., Michelakis, K., Sharma, S., Trzebinski, J., Garner, B. … Eftekhar, A. (2011). Ionic Neural Sensing. In Kramme, R., Hoffmann, K.-.P. and Pozos, R.S. (Eds.), Springer Handbook of Medical Technology Springer. ISBN 978-3-540-74657-7.
- Demosthenous, A., TRIANTIS, I. and Liu, X. (2008). Circuits for Implantable Neural Recording and Stimulation. In Iniewski, K. (Ed.), VLSI Circuits for Biomedical Applications Artech House Publishers. ISBN 978-1-59693-317-0.
- TRIANTIS, I., Demosthenous, A., Donaldson, N. and Rahal, M. (2007). ENG recording amplifier configurations for tripolar cuff electrodes. In Akay, M. (Ed.), Handbook of Neural Engineering (pp. 555–567). Wiley-IEEE Press. ISBN 978-0-470-06828-1.
Conference papers and proceedings (40)
- Ioakim, P. and Triantis, I.F. (2020). On-Demand MEMS Accelerometer Dynamic Response Acquisition and Output Dithering via Self Test Pin Actuation. 2020 IEEE SENSORS 25-28 October. doi:10.1109/sensors47125.2020.9278789
- Sunny, A.I., Kallos, E., Kosmas, P., Rahman, M., Koutsoupidou, M., Cano-Garcia, H. … Triantis, I. (2019). Feasibility Experiments to Detect Skin Hydration Using a Bio-Impedance Sensor. 2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) 23-27 July. doi:10.1109/embc.2019.8857470
- Hantschke, M., Sideris, D., Panayiotis Kyriacou, A. and Triantis, A.I.F. (2018). Optimization of Tetrapolar Impedance Electrodes in Microfluidic Devices for Point of Care Diagnostics using Finite Element Modeling. 2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 18-21 July. doi:10.1109/embc.2018.8513467
- Hanuschek, A., Hantschke, M., Triantis, I.F. and Sideris, D. (2018). Simulation of Temperature Profiles due to Joule Heating in Microfluidic Systems. 2018 IEEE International Symposium on Circuits and Systems (ISCAS) 27-30 May. doi:10.1109/iscas.2018.8351502
- Ioakim, P. and Triantis, I.F. (2018). Auto-zero baseline correction circuit for MEMS accelerometer based seismic sensor. 2018 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL) 26-29 March. doi:10.1109/isiss.2018.8358160
- Constantinou, L., Kyriacou, P.A. and Triantis, I.F. (2017). Towards an optimized tetrapolar electrical impedance lithium detection probe for bipolar disorder: A simulation study. 2017 IEEE SENSORS 29 Oct 2017 – 1 Nov 2017. doi:10.1109/icsens.2017.8234225
- Ioakim, P. and Triantis, I.F. (2017). The challenges of deriving displacement trends from MEMS accelerometric data. 2017 IEEE SENSORS 29 Oct 2017 – 1 Nov 2017. doi:10.1109/icsens.2017.8234152
- Hashim, Z.Q., Constantinou, L., Kyriacou, P.A. and Triantis, I.F. (2016). A novel approach to transcutaneous localization of blood vessels using a dynamically reconfigurable electrode (DRE) array. 2016 IEEE Biomedical Circuits and Systems Conference (BioCAS) 17-19 October. doi:10.1109/biocas.2016.7833822
- Shen, Y., Tsang, K.F., Triantis, I.F. and Lee, T.C.C. (2016). High frequency sensors for robust transmission in telemedicine system. 2016 IEEE 14th International Conference on Industrial Informatics (INDIN) 19-21 July. doi:10.1109/indin.2016.7819307
- Yi Shen, , Kim-Fung Tsang, , Faan Hei Hung, and Triantis, I.F. (2016). A 2.4 GHz CMOS power amplifier. 2016 IEEE 25th International Symposium on Industrial Electronics (ISIE) 8-10 June. doi:10.1109/isie.2016.7745057
- May, J.M., Hickey, M., Triantis, I., Palazidou, E. and Kyriacou, P.A. (2014). Optical analysis of lithium carbonate: Towards the development of a portable lithium blood level analyzer for bipolar disorder patients. 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) 26-30 August. doi:10.1109/embc.2014.6944025
- Kassanos, P. and Triantis, I.F. (2014). A CMOS multi-sine signal generator for multi-frequency bioimpedance measurements. 2014 IEEE International Symposium on Circuits and Systems (ISCAS) 1-5 June. doi:10.1109/iscas.2014.6865112
- Kassanos, P., Triantis, I.F. and Demosthenous, A. (2011). A novel front-end for impedance spectroscopy. IEEE Sensors 2011 October, Limerick, Ireland.
- TRIANTIS, I., Constantinou, L., Kassanos, P., Demosthenous, A. and Bayford, R. (2011). Towards the development of a fully integrated circuit for multi-frequency impedance measurements. 12th International Conference EIT Bath, UK.
- Triantis, I.F., Demosthenous, A., Rahal, M., Hong, H. and Bayford, R. (2011). A multi-frequency bioimpedance measurement ASIC for electrical impedance tomography. doi:10.1109/ESSCIRC.2011.6044974
- Constantinou, L., Demosthenous, A., Langlois, P., Bayford, R. and Triantis, I. (2011). An improved CMOS current driver for electrical impedance tomography. doi:10.1109/ECCTD.2011.6043343
- (2011). "Capacitive" pulse shapes for platinum cuff electrodes.
- Hong, H., Demosthenous, A., TRIANTIS, I., Langlois, P. and Bayford, R. (2010). A high output impedance CMOS current driver for bioimpedance measurement. IEEE BioCAS Paphos, Cyprus.
- Sharma, S., Radomska, A., TRIANTIS, I., Michelakis, K., Trzebinski, J., Field, B.C.T. … Cass, A.E.G. (2010). Ion sensitive field effect transistor based micro-fluidic devices for monitoring physiological changes. 20th World Congress Biosensors Glasgow, UK.
- Liu, X., Demosthenous, A., Triantis, I. and Donaldson, N. (2010). A current generator circuit for tripolar stimulation and insensitive to temperature and supply variations. doi:10.1109/ISCAS.2010.5537387
- Hong, H., Demosthenous, A., Triantis, I.F., Langlois, P. and Bayford, R. (2010). A high output impedance CMOS current driver for bioimpedance measurements. doi:10.1109/BIOCAS.2010.5709613
- Eftekhar, A., Constandinou, T.G., Abbruzzese, D., Woods, V., TRIANTIS, I., Drakakis, E.M. … Toumazou, C. (2009). A Programmable Neural Interface for Investigating Arbitrary Stimulation Strategies. 14th Annual Conference IFESS.
- Woods, V.M., TRIANTIS, I. and Toumazou, C. (2008). A reconfigurable and automated system for the study of stimulus waveform parameters. 13th Annual Conference IFESS 21-25 September, Freiburg, Germany.
- Schuettler, M., TRIANTIS, I., Rubehn, B. and Stieglitz, T. (2007). Matrix cuff electrodes for fibre and fasicle selective peripheral nerve selective recording and stimulation. Proceedings of 12th Annual Conference IFESS 10-14 November, Philadelphia, PA, USA.
- Li, X., Constandinou, T., Eftekhar, A., Georgiou, P., TRIANTIS, I. and Toumazou, C. (2007). Towards a bionic neural link for implantable prosthetics. 3rd International IEEE/EMBS Conference on Neural Engineering 2-5 May, Kohala Coast, Hawaii.
- Eftekhar, A., Constandinou, T.G., Triantis, I.F., Toumazou, C. and Drakakist, E.M. (2007). Towards a reconfigurable sense-and-stimulate neural interface generating biphasic interleaved stimulus. doi:10.1109/CNE.2007.369703
- Georgiou, P., Triantis, I.F., Constandinou, T.G. and Toumazou, C. (2007). Spiking Chemical Sensor (SCS): A new platform for neuro-chemical sensing. doi:10.1109/CNE.2007.369628
- TRIANTIS, I. and Demosthenous, A. (2006). Bioelectric field simulations for studying cuff-electrode interface errors in peripheral nerve signal recordings. IEEE ITAB 26-28 October, Ioannina, Greece.
- TRIANTIS, I. (2006). An implantable system for nerve signal recording to treat spinal cord injury. 1st IDEALeague Summer School 17-22 September, Ascona, Switzerland.
- Triantis, I.F. and Demosthenous, A. (2006). Interference severity in nerve cuff recordings due to muscle source relative proximity.
- Triantis, I.F. and Demosthenous, A. (2005). An improved, very long time-constant CMOS integrator for use in implantable neuroprosthetic devices. doi:10.1109/ECCTD.2005.1523049
- Triantis, I.F. and Demosthenous, A. (2005). A bicmos ENG amplifier with high SIR output. doi:10.1109/ISCAS.2005.1464695
- TRIANTIS, I. and Demosthenous, A. (2004). An adaptive ENG amplifier for FES applications. IFESS/FESnet Bournemouth, UK.
- Triantis, I.F. and Demosthenous, A. (2004). A high-performance adaptive ENG amplifier.
- TRIANTIS, I., Demosthenous, A. and Donaldson, N. (2003). Comparison of three ENG tripolar cuff recording configurations. IEEE EMBS CNE 2003 20-22 March, Capri, Italy.
- TRIANTIS, I., Demosthenous, A., Donaldson, N. and Struijk, J. (2003). Experimental assessment of imbalance conditions in a tripolar cuff for ENG recordings. IEEE EMBS CNE 20-23 March, Capri, Italy.
- TRIANTIS, I., Demosthenous, A. and Donaldson, N. (2003). An ENG amplifier for EMG cancellation and cuff imbalance removal. EPSRC PREP '03 Exter, UK.
- TRIANTIS, I., Rieger, R., Taylor, J., Demosthenous, A. and Donaldson, N. (2002). A CMOS adaptive interference reduction system for nerve cuff recordings. 28th IEEE ESSCIRC 24-26 September, Florence, Italy.
- TRIANTIS, I., Donaldson, N. and Demosthenous, A. (2002). Saline-bath testing of a system for removing artifact from ENG signals. FESnet '02 Glasgow, UK.
- Triantis, I., Rieger, R., Taylor, J. and Donaldson, N. (2001). Adaptive interference reduction in nerve cuff electrode recordings.
Internet publication
- Triantis, I.F. Home Page.
Journal articles (27)
Patents (3)
- TRIANTIS, I. and Vekinis, S. (2011). An In-Vivo Plant Monitoring with Integrated in Real-Time Remedial Management and Certification System. Patent no. GB1116167.6
- TRIANTIS, I. and Toumazou, C. (2007). Methods and apparatus for stimulating activity in the peripheral nervous system. Patent no. GB0709542.5
- TRIANTIS, I. and Toumazou, C. Method and apparatus for measuring activity in the peripheral nervous system. Patent no. WO/2008/007065
Other
- TRIANTIS, I., Woods, V., Eftekhar, A., Georgiou, P., Constandinou, T.G., Drakakis, E.M. … Toumazou, C. Advances in neural interfacing.