Synthesis of Silver Nanoparticles by Green Method Stabilized to Synthetic Human Stomach Fluid

被引：31

作者：

Atta, Ayman M. ^{[1
,2
]}

Al-Lohedan, Hamad A. ^{[1
]}

Ezzat, Abdelrahman O. ^{[1
]}

机构：

[1] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia

[2] Egyptian Petr Res Inst, Petr Applicat Dept, Cairo 11727, Egypt

来源：

MOLECULES | 2014年 / 19卷 / 05期

关键词：

silver nanoparticles; poly(vinyl alcohol) thiol; aqueous acidic solution; citrate reducing agent; ANTIBACTERIAL ACTIVITY; IRON-OXIDE; TOXICITY; NANOSTRUCTURES; BIOSYNTHESIS; DISSOLUTION; BACTERIA; ARGYRIA; TISSUE; AU;

D O I：

10.3390/molecules19056737

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：

Silver nanoparticles (Ag NP) have been attracted much attention in recent years in biomedical applications due to their antimicrobial activity, but their drawbacks include toxicity and instability to aqueous hydrochloric acid solutions. Ag NPs have now been successfully prepared by a simple and "green" synthesis method by reducing Ag+ ions in the presence of modified poly(vinyl alcohol) thiol (PVA-SH) in aqueous acidic solution. In this respect, Ag NPs were stabilized by coating different types of citrate-reduced Ag NPs with different weight ratios (1-3 Wt. %) of PVSH derivatives. The as-prepared Ag NPs were characterized using UV-Visible, high resolution transmission electron microscopy/energy dispersive X-ray spectroscopy (TEM/EDS), dynamic light scattering (DLS) and X-ray powder diffraction (XRD) combined with Rietveld analysis. The changes in size, shape, and hydrodynamic diameter of Ag NPs after different duration exposure to synthetic stomach fluid (SSF) and1 M HCl were determined using TEM, XRD and UV-Visible analyses. The data indicated that these Ag NPs possessed high stability to SSF for more than 90 days, which was not previously reported in the literature.

引用

页码：6737 / 6753

页数：17

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