Preparation and Antimicrobial Properties of Alginate and Serum Albumin/Glutaraldehyde Hydrogels Impregnated with Silver(I) Ions

Autor: Louise Gallagher, Alanna Smith, Kevin Kavanagh, Michael Devereux, John Colleran, Carmel Breslin, Karl G. Richards, Malachy McCann, A. Denise Rooney
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Chemistry, Vol 3, Iss 2, Pp 672-686 (2021)
Druh dokumentu: article
ISSN: 2624-8549
DOI: 10.3390/chemistry3020047
Popis: Calcium alginate (CaALG) hydrogel beads and two sets of composite beads, formed from a combination of calcium alginate/propylene glycol alginate/human serum albumin (CaALG/PGA/HSA) and from calcium alginate with the quaternary ammonium salt, (3-(trimethoxysilyl)propyl)-octadecyldimethylammonium chloride (QA), (CaALG/QA), were prepared. Bovine serum albumin (BSA) was condensed with glutaraldehyde (GLA) to form a BSA/GLA hydrogel. The corresponding Ag+-containing gels of all of the above hydrogels were also formed, and slow leaching of the biocidal transition metal ion from the gels bestowed broad spectrum antimicrobial activity. In the absence of added Ag+, CaALG/QA was the only material to deliver marginal to moderate antibacterial and antifungal effects. The Ag+ impregnated hydrogel systems have the potential to maintain the antimicrobial properties of silver, minimising the risk of toxicity, and act as reservoirs to afford ongoing sterility.
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