Multiscale real time and high sensitivity ion detection with complementary organic electrochemical transistors amplifier
| Autor: | Paolo Romele, Paul W. M. Blom, Katharina Lieberth, Paschalis Gkoupidenis, Zsolt Miklós Kovács-Vajna, Fabrizio Torricelli, Dimitrios A. Koutsouras |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Transistors Electronic Orders of magnitude (temperature) Polymers Science General Physics and Astronomy 02 engineering and technology 010402 general chemistry Transistors 01 natural sciences General Biochemistry Genetics and Molecular Biology Article Ion law.invention Electricity law Computer Systems Electronic devices Electronic Humans Sensitivity (control systems) Organic Chemicals lcsh:Science Ions Bioelectronics Multidisciplinary Amplifiers Electronic business.industry Amplifier Transistor Electrochemical Techniques Potassium General Chemistry 021001 nanoscience & nanotechnology Electrical and electronic engineering Sensors and biosensors 0104 chemical sciences Amplifiers Optoelectronics lcsh:Q 0210 nano-technology business Order of magnitude Organic electrochemical transistor |
| Zdroj: | Nature Communications Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020) |
| Popis: | Ions are ubiquitous biological regulators playing a key role for vital processes in animals and plants. The combined detection of ion concentration and real-time monitoring of small variations with respect to the resting conditions is a multiscale functionality providing important information on health states. This multiscale functionality is still an open challenge for current ion sensing approaches. Here we show multiscale real-time and high-sensitivity ion detection with complementary organic electrochemical transistors amplifiers. The ion-sensing amplifier integrates in the same device both selective ion-to-electron transduction and local signal amplification demonstrating a sensitivity larger than 2300 mV V−1 dec−1, which overcomes the fundamental limit. It provides both ion detection over a range of five orders of magnitude and real-time monitoring of variations two orders of magnitude lower than the detected concentration, viz. multiscale ion detection. The approach is generally applicable to several transistor technologies and opens opportunities for multifunctional enhanced bioelectronics. Though organic electrochemical transistor (OECT)-based ion sensors are attractive for highly sensitive ion detection and monitoring, its limited sensitivity hinders its practical applicability. Here, the authors report real-time, high sensitivity ion detection with complementary OECT amplifiers. |
| Databáze: | OpenAIRE |
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