Biofilm-associated infections are difficult to treat in the clinics because the bacteria embedded in biofilm are ten to thousand times more resistant to traditional antibiotics than planktonic ***,a smart hydrogel com...
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Biofilm-associated infections are difficult to treat in the clinics because the bacteria embedded in biofilm are ten to thousand times more resistant to traditional antibiotics than planktonic ***,a smart hydrogel comprised of aminoglycoside antibiotics,pectinase,and oxidized dextran was developed to treat local biofilm-associated *** primary amines on aminoglycosides and pectinase were reacted with aldehyde groups on oxidized dextran via a pH-sensitive Schiff base linkage to form the *** bacterial infection,the increased acidity triggers the release of both pectinase and aminoglycoside *** released pectinase efficiently degrades extracellular polysaccharides surrounding the bacteria in biofilm,and thus greatly sensitizes the bacteria to *** smart hydrogel efficiently eradicated biofilms and killed the embedded bacteria both in vitro and in *** study provides a promising strategy for the treatment of biofilm-associated infections.
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