Title:Composite and Nanocomposite Thin-film Structures Based on Chitosan Succinamide
Volume: 15
Issue: 1
Author(s): Renat Salikhov*, Rufina Zilberg, Ilnur Mullagaliev, Timur Salikhov, Yuliya Teres, Elena Bulysheva and Anastasia Ostaltsova
Affiliation:
- Department of Infocommunication Technologies and Nanoelectronics, Ufa University of Science and Technology,
ZakiValidi St. 32, Ufa 450076, Russia
Keywords:
Thin films, chitosan succinamide, voltammetry, impedance, field-effect transistor, mobility of charge carriers.
Abstract:
Aim: Currently, developing composite and nanocomposite materials based on natural polymers is attracting the growing attention of scientists. In particular, chitosan succinamide, a modified biopolymer, has good biocompatibility, biodegradability, and electrical conductivity, allowing it to be used as a functional material for creating various electronic devices, including sensors for use in medicine and pharmaceuticals. Composite sensors based on chitosan derivatives have found application for the recognition and determination of enantiomers of tryptophan, tyrosine, naproxen, and propranolol in human urine and blood plasma in tablet forms of drugs without a preliminary active substance.
Methods: This article discusses the studies on composite and nanocomposite thin-film structures based on chitosan succinamide obtained using various fillers, such as graphene oxide, single-walled carbon nanotubes, and carbon adsorbents.
Result: The studies used cyclic voltammetry, electrochemical impedance spectroscopy, and atomic force microscopy. The results created field-effect transistors based on the films in question as the transport layer.
Conclusion: The mobility of charge carriers was estimated, and the following values were obtained: μ(SCTS) = 0.173cm2/V·s; μ(SCTS-GO) = 0.509 cm2/V·s; μ(SCTS-CP) = 0.269 cm2/V·s; μ(SCTS-CB) = 0.351cm2/V·s; μ(SCTS-SWCNT) = 0.713 cm2/V·s.