Battery-Powered Miniature Bipotentiostats for Amperometric Biosensors

Autor:	J. G. Wagner, C. P. Quinn, Adam Heller, Chaim N. Yarnitzky
Rok vydání:	1996
Předmět:	Materials science business.industry General Chemical Engineering Electrical engineering Battery (vacuum tube) Signal Potentiostat Amperometry Data logger Personal computer business Instrumentation Pulse-width modulation General Environmental Science Voltage
Zdroj:	Instrumentation Science & Technology. 24:263-275
ISSN:	1525-6030 1073-9149
DOI:	10.1080/10739149608001212
Popis:	The design and characterization of two miniature bipotentiostats for use with amperometric biosensors is described. The bipotentiostats are powered by 9V batteries and have counter electrode potential swings of ± 1.5 V and ± 3.0 V, respectively. In the first, a voltage signal, proportional to the current generated by the sensor, is transferred to a data logger. In the second, the output signal is transmitted to a personal computer through an opto-coupler by pulse width modulation so as to electrically isolate the system in or on the body from the external AC line. The devices accurately measure currents in the nA range and their output signals are stable for over 100 h. They are suitable for use in both in vitro and in vivo studies requiring accurate amperometry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::781fed38a34c47e662cc692663b5d9b1 https://doi.org/10.1080/10739149608001212 Zobrazit plný text záznamu