Detection of toxic substances using nanostructures based on L-aspartic acid
Vera V. Olomskaya, Ekaterina A. Mordovina, Larisa A. Nazaryan, Irina Yu. Goryacheva, Saratov State University, Saratov, Russia
Abstract
Carbon nanostructures (CNS) find their application in the electrochemical, biochemical and medical sciences thanks to photostability, biocompatibility, and bright fluorescence in the visible range. Due to the toxic effects of organic and inorganic waste released into the environment, there is a growing need for portable sensor devices for reliable on-site monitoring of a contaminant. The purpose of the work is to optimize the physicochemical properties of fluorescent nanostructures based on L-aspartic acid and to use this system as a detector of heavy metal cations and 4-nitrophenol. L-aspartic acid CNS synthesis was carried out by the hydrothermal method. In the process, we checked the effect of additives on the main component and the ratio between them, temperature and time of synthesis. To study the properties of CNS under different external conditions, we varied the ionic strength and pH.
This work was supported by the Ministry of Science and Higher Education of the Russian Federation (project № FSRR-2020-0002).
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Vera V. Olomskaya
Saratov State University
Russia
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