Antibacterial surfaces through dopamine functionalization and silver nanoparticle immobilization

被引：160

作者：

Liao, Yuan ^{[1
,2
]}

Wang, Yaqin ^{[3
]}

Feng, Xiaoxia ^{[3
]}

Wang, Wencai ^{[1
,2
]}

Xu, Fujian ^{[1
,2
]}

Zhang, Liqun ^{[1
,2
]}

机构：

[1] Beijing Univ Chem Technol, Minist Educ, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Key Lab Beijing City Preparat & Proc Novel Polyme, Beijing 100029, Peoples R China

[3] Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing 100029, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2010年 / 121卷 / 03期

关键词：

Polyimide; Dopamine; Silver; Antibactericidal; Nanoparticle; TRANSFER RADICAL POLYMERIZATION; FILMS; BIOCOMPATIBILITY; BACTERIAL; COATINGS; VIOLOGEN; CELLS; IONS;

D O I：

10.1016/j.matchemphys.2010.02.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Immobilization of silver nanoparticles on the dopamine functionalized polyimide (PI) films was carried out by photo-induced silver ion-reduction under atmosphere conditions. The dopamine has been successfully deposited on the PI surface in mild aqueous environments. The effects of pH, dopamine concentration and reaction time on the dopamine polymerization were investigated. The water contact angles of the poly(dopamine) functionalized PI films reduced remarkably in comparison with that of the pristine PI film. The chemical composition and structure of the UV-induced deposited-silver on the modified PI films were characterized by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The topography of the modified PI films was investigated by scanning electron microscope (SEM). The deposited poly(dopamine) layer acted as binding sites for the silver ions. The silver-plated PI films showed good antibacterial activity due to that biofilm formation was inhibited on the polymeric surfaces in contact with bacteria. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：534 / 540

页数：7

共 28 条

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