Search academic texts

Information × Registration Number 0223U000554, 0120U002200 , R & D reports Title The increasing of informativeness and metrological reliability of electrochemical enzyme biosensor systems on the basis of modern materials. 1. Development of the new principles of construction and prototype of measurement channels of electrochemical type biosensory systems. popup.stage_title Head Melnyk Volodymyr H., Доктор технічних наук Registration Date 12-01-2023 Organization Institute of Electrodynamics of the National Academy of Sciences of Ukraine popup.description2  The object of research is a basic hardware and software complex for building electrochemical measuring channels of a biosensor system based on measuring cells with amperometric and conductometric sensors.The main purpose of the work is to expand the functionality, increase the informativeness and metrological reliability (reliability of measurement results), improve the performance of biosensor systems of electrochemical type.A set of technical documentation (schemes, drawings of printed circuit boards) and software of the internal microcontroller of the experimental sample (prototype) of the basic module of the electrochemical analyzer have been developed. Its experimental sample was manufactured and adjusted. The program for controlling the operation of the test signal generator in the frequency range of 0 - 1 MHz has been developed, and the results of its testing with the hardware unit have been obtained. Complex laboratory tests of the hardware part and the developed software of the basic module of the analyzer together with the measuring circuit unit and electrical equivalents of the sensors in the working frequency range were carried out, as well as the approbation of measurements of the parameters of real impedance objects. The functional and metrological characteristics provided by the technical task have been confirmed. The possibility of measuring impedance parameters at frequencies up to 1 MHz with amplitude and phase errors not exceeding 0.1% has been proven. Realized adjustment of the test voltage and constant voltage on the object of measurement with errors at the level of 0.02 - 0.05%. The obtained results will make it possible to create a compact and inexpensive biosensor analyzer for measurements by the spectral impedance method and studies of the characteristics of biosensor transducers. Product Description popup.authors Belyaev Vitaly K. Borschov Pavlo I Vasilenko Оlexander D. Melnyk Volodymyr H. Cherkasova Tetyana М. popup.nrat_date 2023-01-12 Close