OPTICAL SENSOR OF FLAVONOIDS BASED ON LIQUID CRYSTAL
Orest Sushynskyi
orest.y.sushynskyi@lpnu.uaLviv Polytechnic National University, Department of Electronic Devices (Ukraine)
http://orcid.org/0000-0002-2661-6458
Romana Petrina
Lviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology (Ukraine)
http://orcid.org/0000-0002-5416-1999
Zoriana Gubriy
Lviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology (Ukraine)
http://orcid.org/0000-0003-2533-6857
Semen Khomyak
Lviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology (Ukraine)
http://orcid.org/0000-0003-1931-1688
Zinoviy Mykytyuk
Lviv Polytechnic National University, Department of Electronic Devices (Ukraine)
http://orcid.org/0000-0002-1944-2015
Volodymyr Novikov
Lviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology (Ukraine)
http://orcid.org/0000-0002-0485-8720
Abstract
In order to solve the problems associated with the express registration of the presence of biologically active substances in callus biomass, we propose the use of cholesteric liquid crystal (CLC) with a spiral structure as a material of a sensitive element of optical sensor of flavonoids. Cholesteric liquid crystal BLO62 is proposed to use as a sensitive element. Spectral characteristics of alcohol solutions of flavonoids (20%, 40%, 70% and 90%) were obtained. The interaction of CLC with quercetin was analyzed. The scheme of the primary information signal converter is developed in which the current from the photodetector is transmitted to the developed signal converter. The device is implemented with the common use Atmega 328 microcontroller manufactured by Atmel. Speciality of this structural scheme is its flexibility and versatility, which makes it easy to reconfigure the parameters of the firmware for the registration of various types of investigated mediums.
Keywords:
optical sensor, liquid crystal, flavonoids, quercetinReferences
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Authors
Orest Sushynskyiorest.y.sushynskyi@lpnu.ua
Lviv Polytechnic National University, Department of Electronic Devices Ukraine
http://orcid.org/0000-0002-2661-6458
Authors
Romana PetrinaLviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology Ukraine
http://orcid.org/0000-0002-5416-1999
Authors
Zoriana GubriyLviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology Ukraine
http://orcid.org/0000-0003-2533-6857
Authors
Semen KhomyakLviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology Ukraine
http://orcid.org/0000-0003-1931-1688
Authors
Zinoviy MykytyukLviv Polytechnic National University, Department of Electronic Devices Ukraine
http://orcid.org/0000-0002-1944-2015
Authors
Volodymyr NovikovLviv Polytechnic National University, Department of Technology of Biologically Active Substances, Pharmacy and Biotechnology Ukraine
http://orcid.org/0000-0002-0485-8720
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