Work

AuNP-Containing Hydrogels Based on Arabinogalactan and κ-Carrageenan with Antiradical Activity

Year: 2025

Type: article

Abstract: The synthesis and the antiradical activity of composite hydrogels based on arabinogalactan-stabilized gold nanoparticles (AuNPs) and κ-carrageenan (κCG) were examined. It was found that the reducing and stabilizing properties of arabinogalactan (Ar-Gal) could be used to obtain hybrid composites. The AuNP content of the composites ranged from 0.3 to 7.8%, with an average particle size of 5.3–14.0 nm. The antiradical properties of these nanocomposites were demonstrated for the first time using the activated chemiluminescence method. The combination of the synthesized Ar-Gal-AuNPs composite and the natural gel-forming polysaccharide κCG at different ratios enabled a variety of composite hydrogels with different rheological and structural-mechanical properties to be produced. The effect of the Ar-Gal-AuNPs/κCG ratio and the presence of Ca2+ ions on the moisture-retaining ability, swelling properties and elastic modulus of the obtained hydrogels was investigated.

Source: Gels

DOI: 10.3390/gels12010009

Author: Marina Zvereva

Institution: A.E. Favorsky Irkutsk Institute of Chemistry

Language: English

Topic: Hydrogels: synthesis, properties, applications

Subfield: Molecular Medicine

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: gold

Estimated APC paid: $2,534

Funders: Siberian Branch, Russian Academy of Sciences, Russian Academy of Sciences