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Information × Registration Number 0219U102068, 0119U101857 , R & D reports Title Application of hybrid nanostructures which are based on TiO2 or ZnO and modified by biomolecules, in optoelectronic sensors popup.stage_title Head Smyntyna Valentyn A., Доктор фізико-математичних наук Registration Date 17-12-2019 Organization Odessa I.I.Mechnikov National University popup.description2 The object of study is the process of adsorption of biomolecules on the surface of nanostructured films of titanium dioxide (TiO2) and zinc oxide (ZnO). The aim of the project is to establish the physico-chemical characteristics and mechanisms of interaction between biomolecules with TiO2 and/or ZnO nanostructures for application in optoelectronic sensors. Research Methods - the physicochemical characteristics of new samples of hybrid TiO2 and ZnO nanostructures were investigated using optical methods - photoluminescence, absorption, reflection of nanostructured TiO2 and ZnO films; structural and surface properties were investigated by methods: X-ray diffraction, atomic force and scanning electron microscopy, Raman scattering and others. Modern computer software was used to process and analyze the results. The mechanism of interaction between semiconductor structures and biomolecules was developed by analyzing the influence of their adsorption on the physicochemical characteristics of TiO2 and ZnO. New samples of TiO2 and ZnO hybrid nanostructures on the flat substrates (silicon, glass) were obtained and their physicochemical characteristics were established. The effect of adsorption of biomolecules (BLV, GVA, BSA) on the optical properties of the obtained TiO2 and ZnO samples was determined, as well as the effect of the adsorption of some gases on the resistive properties of TiO2 samples. The dependence of the change of optical properties (photoluminescence) of TiO2 under the influence of an external electric field was investigated. Prototypes of new optoelectronic bio- and gas sensors were obtained. A model of the mechanism of interaction between photoluminescent TiO2 nanostructures and a protein of Bovine leukemia virus (BLV) proteins was set during the development of an optical immunosensor. Product Description popup.authors Tereshchenko Alla V. popup.nrat_date 2020-04-02 Close