Preparation of Biologically Active Compositions from Aqueous Solutions of L-Cysteine, Silver Salts and Polyvinyl Alcohol
- Authors: Vishnevetskii D.V.1, Laguseva V.S.1, Ivanova A.I.1, Khizhnyak S.D.1, Pakhomov P.M.1
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Affiliations:
- Tver State University
- Issue: Vol 50, No 3 (2018)
- Pages: 161-165
- Section: Article
- URL: https://journal-vniispk.ru/0015-0541/article/view/235331
- DOI: https://doi.org/10.1007/s10692-018-9953-8
- ID: 235331
Cite item
Abstract
UV spectroscopy, viscosimetry, pH measurements, and scanning electron microscopy were used to study the behavior and morphology of hydrogels obtained from L•cysteine, silver nitrate, and polyvinyl alcohol. Good compatibility was found for aqueous solutions of cysteine and silver nitrate upon their mixing with a solution of polyvinyl alcohol (PVA). Increasing the concentration of PVA leads to an increase in viscosity indices of the hydrogels. The interaction between PVA macromolecules and supramolecules of the cysteine•silver solution occurs primarily through the formation of hydrogen bonds. The hydrogels were found to have macro• and superporous structure. Introduction of the polymer permits control of the porosity and favors encapsulation of the supramolecular structure in the polymer matrix.
About the authors
D. V. Vishnevetskii
Tver State University
Email: pavel.pakhomov@mail.ru
Russian Federation, Tver
V. S. Laguseva
Tver State University
Email: pavel.pakhomov@mail.ru
Russian Federation, Tver
A. I. Ivanova
Tver State University
Email: pavel.pakhomov@mail.ru
Russian Federation, Tver
S. D. Khizhnyak
Tver State University
Email: pavel.pakhomov@mail.ru
Russian Federation, Tver
P. M. Pakhomov
Tver State University
Author for correspondence.
Email: pavel.pakhomov@mail.ru
Russian Federation, Tver
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