Alditol bearing chitosans have shown the ability to reduce silver ions in mild conditions and without addition of exogenous reducing agents. The ion reduction induces the formation of a lactone moiety on the polysaccharide (Fetizon reaction) without causing C-C bond cleavage on the polyol. The close and multivalent arrangement of the endogenous reducing agent (alditols) on the polysaccharide backbone resulted in the formation of silver nanoparticles (O < 10 nm), which induced a considerable SERS effect and led to hydrogel formation.
Titolo: | Polyol Synthesis of Silver Nanoparticles: Mechanism of Reduction by Alditol Bearing Polysaccharides |
Autori: | |
Data di pubblicazione: | 2009 |
Rivista: | |
Abstract: | Alditol bearing chitosans have shown the ability to reduce silver ions in mild conditions and without addition of exogenous reducing agents. The ion reduction induces the formation of a lactone moiety on the polysaccharide (Fetizon reaction) without causing C-C bond cleavage on the polyol. The close and multivalent arrangement of the endogenous reducing agent (alditols) on the polysaccharide backbone resulted in the formation of silver nanoparticles (O < 10 nm), which induced a considerable SERS effect and led to hydrogel formation. |
Handle: | http://hdl.handle.net/11368/2278799 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1021/BM801253C |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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