Enzyme-Catalyzed Polymerization Process: A Novel Approach to the Preparation of Polyaniline Colloidal Dispersions with an Immunomodulatory Effect

0560260 - BFÚ 2023 RIV US eng J - Článek v odborném periodiku
Jasenská, D. - Kašpárková, V. - Vašíček, Ondřej - Münster, L. - Minařík, A. - Kacerova, S. - Korabkova, E. - Urbánková, L. - Vícha, J. - Capáková, Z. - Falleta, E. - Della Pina, C. - Lehocký, M. - Skopalová, K. - Humpolíček, P.
Enzyme-Catalyzed Polymerization Process: A Novel Approach to the Preparation of Polyaniline Colloidal Dispersions with an Immunomodulatory Effect.
Biomacromolecules. Roč. 23, č. 8 (2022), s. 3359-3370. ISSN 1525-7797. E-ISSN 1526-4602
Institucionální podpora: RVO:68081707
Klíčová slova: ANTIOXIDANT ACTIVITY * NANOPARTICLES * ANILINE
Obor OECD: Biochemistry and molecular biology
Impakt faktor: 6.2, rok: 2022
Způsob publikování: Omezený přístup
https://pubs.acs.org/doi/10.1021/acs.biomac.2c00371

A green, nature-friendly synthesis of polyaniline colloidal particles based on enzyme-assisted oxidation of aniline with horseradish peroxidase and chitosan or poly(vinyl alcohol) as steric stabilizers was successfully employed. Physicochemical characterization revealed formation of particles containing the polyaniline emeraldine salt and demonstrated only a minor effect of polymer stabilizers on particle morphology. All tested colloidal particles showed in vitro antioxidation activity determined via scavenging of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals. In vitro, they were able to reduce oxidative stress and inhibit the production of reactive oxygen species by neutrophils and inflammatory cytokines by macrophages. The anti-inflammatory effect observed was related to their antioxidant activity, especially in the case of neutrophils. The particles can thus be especially advantageous as active components of biomaterials modulating the early stages of inflammation. In addition to the immunomodulatory effect, the presence of intrinsically conducting polyaniline can impart cell-instructive properties to the particles. The approach to particle synthesis that we employed-an original one using environmentally friendly and biocompatible horseradish peroxidase-represents a smart way of preparing conducting particles with unique properties, which can be further modified by the stabilizers used.
Trvalý link: https://hdl.handle.net/11104/0340529