Short communication: Unexpected findings on the physicochemical characterization of the silver nanoparticle surface

被引：9

作者：

Loran, S. ^{[1
]}

Yelon, A. ^{[1
]}

Sacher, E. ^{[1
]}

机构：

[1] Ecole Polytech, Dept Genie Phys, CP 6079 Succursale C-V, Montreal, PQ H3C 3A7, Canada

来源：

APPLIED SURFACE SCIENCE | 2018年 / 428卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Ag nanoparticles; Atmospheric exposure; Surface analysis; Surface contamination; TOF-SIMS; XPS; ORIENTED PYROLYTIC-GRAPHITE; X-RAY PHOTOELECTRON; TOXICITY; OXIDE; XPS;

D O I：

10.1016/j.apsusc.2017.09.251

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The bactericidal properties of silver nanoparticles (Ag NPs) have been variously attributed to the action of the NP surface and/or the Ag ions released therefrom. However, the published literature does not appear to contain any information on the physicochemical characterization of the NP surface. Herein, we report on the surprisingly reactive surface of the Ag NP, which has an almost total lack of free Ag on atmospheric exposure. Rather, an abundance of surface hydrocarbons, hydrides and oxides, as well as amines and oxidized N, argues for a reinterpretation of their bactericidal action. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1079 / 1081

页数：3

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