Search academic texts

Information × Registration Number 0223U001073, 0120U103201 , R & D reports Title Optoelectronic smart sensor with electrochemical functions. Section 1. Development and optimization of optoelectronic sensor with electrochemical functions popup.stage_title Head Chegel Volodymyr I., Доктор фізико-математичних наук Registration Date 25-01-2023 Organization VE Lashkarev Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine popup.description2 An optimized design of the prototype of a portable electrochemical LSPR smart sensor, specialized for the use of two-channel plasmonic nanochips with a dedicated reference electrode, was developed. The proposed prototype is designed to work in smart sensor mode with the transfer of experimental data set to a smartphone using the HC-05 Bluetooth module, allows to work in autonomous mode for up to 16 hours and to measure the electrochemical and optical properties of the analyzed analytes in the visible spectral range of wavelengths. An algorithm for reading and processing data via a Bluetooth channel has been developed for a mobile application on an Android smartphone. The calibration of the mobile application prototype for the portable smart sensor was carried out on real samples. The smart sensor was tested in cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy modes with simultaneous measurement of light extinction kinetics. The possibility of combining various electrochemical methods (electrochemical impedance spectroscopy, cyclic voltammetry and chronoamperometry) for simultaneous registration of biomolecules using a smart sensor in electrochemical and optical mode is shown. Registration of bovine serum albumin molecules in a buffer solution was achieved at a concentration of 1 pg/ml (chronoamperometry, electrochemical impedance spectroscopy) and 10 pg/ml (light extinction kinetics). Product Description popup.authors Demydov Petro V. Kukla Oleksandr L. Lytvyn Vitalii K. Lopatynskyi Andrii M. Pavliuchenko Oleksii S. popup.nrat_date 2023-01-25 Close