Facilely green synthesis of silver nanoparticles into bacterial cellulose

被引：81

作者：

Li, Zhe ^{[1
]}

Wang, Lei ^{[1
]}

Chen, Si ^{[1
]}

Feng, Chao ^{[3
]}

Chen, Shiyan ^{[2
]}

Yin, Na ^{[1
]}

Yang, Jingxuan ^{[1
]}

Wang, Huaping ^{[1
]}

Xu, Yuemin ^{[3
]}

机构：

[1] Donghua Univ, State Key Lab Modificat Chem Fibers & Polymer Mat, Key Lab Text Sci & Technol, Coll Mat Sci & Engn,Minist Educ, Shanghai 201620, Peoples R China

[2] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[3] Shanghai Jiao Tong Univ, Affiliated Peoples Hosp 6, Dept Urol, Shanghai 201620, Peoples R China

来源：

CELLULOSE | 2015年 / 22卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Bacterial cellulose; Green synthesis; Silver nanoparticles; Antimicrobial wound dressings; IN-SITU SYNTHESIS; ANTIBACTERIAL PROPERTIES; METAL NANOPARTICLES; MICROBIAL CELLULOSE; TISSUE DISTRIBUTION; TOXICITY; SIZE; FABRICATION; GENERATION; COMPOSITE;

D O I：

10.1007/s10570-014-0487-9

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

A facile "Green Synthesis'' method was used to prepare silver nanoparticles (AgNPs) in bacterial cellulose (BC) nanofibers, using BC as both the reducing and protecting agents with different concentration of AgNO3 (from 0.001 to 1 M) at 0.103 MPa pressure, 121 degrees C for 10 min without any other chemicals. The structures and properties of AgNPs/BCwere characterized by UV-Visible spectral analysis, X-ray diffraction, field emission scanning electron microscopy, high-resolution transmission electron microscope, and inductively coupled plasma (ICP). The results showed that the AgNPs were spherical or nearly spherical with the face-centred cubic geometry and distributed uniformly in the three-dimensional network structure of BC with the size of about 40-60 nm. The silver content and release of silver ions were determined by ICP. With the increase of AgNO3 concentration, the content of silver increased from 16 to 115 mg/100 cm(2) and the release of silver ions can be controlled by using different concentration of AgNO3. The antimicrobial activities of AgNPs/BC membranes against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa were estimated by the AATCC Test Method 100-2004. According to these results, it is anticipated that the AgNPs/BC nanocomposites can be applied to the antimicrobial wound dressings and implant materials.

引用

页码：373 / 383

页数：11