RESUMEN

During the last few decades, there has been evident growth in the development and fabrication of nano structured materials due to their wide application for different fields of material science and engineering. Among all these materials, natural polymer-based hydrogels such as polysaccharides, proteins, lipids etc. are gaining significant attention in the field of nanotechnology. Among them Chitosan hydrogels are widely used. These are cross-linked hydrophilic polymers which facilitate the uptake of significant quantity of water without being dissolved in water. They are hydrophilic in nature antimicrobial mainly need for fabrication of novel biomaterial These are chemically and physically firm, soft, stretchy polymeric network, reusable and multi-functional in nature. Chitosan has extensive properties including electrical, photo thermal characteristics, catalysis, anti-microbial characteristics, drug degradation, pollutants removal; bio-sensing etc. make it ultimate for "smart" nanostructure material. Recently, advance in the applications of Chitosan has made it an appreciable research material among the researchers. In this review we will focus on properties and applications of Chitosan as smart material in sensor configurations in various fields like clinical and environmental analysis.

Asunto(s)

Técnicas Biosensibles , Quitosano/química , Técnicas Electroquímicas , Animales , Antioxidantes , Materiales Biocompatibles/química , Biomarcadores , Glucemia , Quitosano/aislamiento & purificación , Humanos , Metales Pesados , Nanoestructuras/química , Nanotecnología , Neurotransmisores/sangre

RESUMEN

In the present work, a novel sensor developed for the quantification of quercetin (QRC) is being reported. Due to synergistic effects of Aloe vera and titanium oxide, voltammetric performance of the developed sensor (ALV-TiO2/glassy carbon electrode) was greatly enhanced. The fabricated sensor was characterized by scanning electron microscopy, X-ray diffraction, energy dispersive X-ray, and electrochemical impedance spectroscopy. The sensor was applied to study electrochemical behavior of QRC using square wave voltammetry. Under optimal condition, the developed sensor exhibited a linear response in the range of 3.3 × 10-7 to 2.31 × 10-6 µM with a detection limit of 0.8 nM. The analytical utility of the proposed sensor was justified by applying it for the analysis of QRC in real samples.