Polyol Synthesis of Silver Nanoparticles: Mechanism of Reduction by Alditol Bearing Polysaccharides

被引：51

作者：

Donati, Ivan ^{[1
]}

Travan, Andrea ^{[1
]}

Pelillo, Chiara ^{[1
]}

Scarpa, Tommaso ^{[1
]}

Coslovi, Anna ^{[1
]}

Bonifacio, Alois ^{[2
]}

Sergo, Valter ^{[2
]}

Paoletti, Sergio ^{[1
]}

机构：

[1] Univ Trieste, Dept Life Sci, I-34127 Trieste, Italy

[2] Univ Trieste, Dept Mat Engn & Nat Resources, I-34127 Trieste, Italy

来源：

BIOMACROMOLECULES | 2009年 / 10卷 / 02期

关键词：

SHAPE-CONTROLLED SYNTHESIS; LACTOSE-MODIFIED CHITOSAN; NANOWIRES; NANOCOMPOSITES; CHONDROCYTE; GOLD;

D O I：

10.1021/bm801253c

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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 (circle divide < 10 nm), which induced a considerable SERS effect and led to hydrogel formation.

引用

页码：210 / 213

页数：4

共 23 条

[1] Citrate-reduced silver hydrosol modified with ω-mercaptoalkanoic acids self-assembled monolayers as a substrate for surface-enhanced resonance Raman scattering.: A study with cytochrome c [J].