Journal
MATERIALS LETTERS
Volume 65, Issue 19-20, Pages 2963-2965Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2011.06.020
Keywords
Nanoparticles; Core-shell; Polymer; Silver; Biomaterials
Funding
- National Natural Science Foundation of China [50943027]
- Key Laboratory Open Foundation of Shanxi Province [2009011059-14]
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An eco-friendly method was put forward to synthesize Ag nanoparticles (Ag NPs) by using biodegradable starch as a stabilizing agent. The silver ion from AgNO3 was reduced by glucose in soluble starch solution. Morphological observation and characterization of Ag NPs were performed by using high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and UV-vis absorption spectroscopy. HRTEM showed that Ag NPs were covered by starch layer to form spherical core-shell Ag/starch NPs with diameter ranging from 5 to 20 nm. XRD pattern confirmed the presence of Ag NPs with face-centered cubic (fcc) structure. All these results indicated that starch played an important role in stabilizing Ag NPs. (C) 2011 Elsevier B.V. All rights reserved.
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