YANG Jiazhi, LIU Xiaoli, HUANG Liyong, SUN Dongping. Antibacterial Properties of Novel Bacterial Cellulose Nanofiber Containing Silver Nanoparticles[J]. Chin.J.Chem.Eng., 2013, 21(12): 1419-1424.DOI: 10.1016/S1004-9541(13)60636-9.
Antibacterial Properties of Novel Bacterial Cellulose Nanofiber Containing Silver Nanoparticles
摘要
Abstract
In this work
we describe a novel facile method to prepare long one-dimensional hybrid nanofibers by using hydrated bacterial cellulose nanofibers (BCF) as a template. Silver (Ag) nanoparticles with an average diameter of 1.5 nm were well dispersed on BCF via a simple in situ chemical-reduction between AgNO
3
and NaBH
4
at a relatively low temperature. A growth mechanism is proposed that Ag nanoparticles are uniformly anchored onto BCF by coordination with BC-containing hydroxyl groups. The bare BCF and as-prepared Ag/BCF hybrid nanofibers were characterized by several techniques including transmission electron microscopy
X-ray diffraction
thermogravimetric analyses
and ultraviolet-visible (UV-Vis) absorption spectra. The antibacterial properties of Ag/BCF hybrid nanofibers against Escherichia coli (E. coli
Gram-negative) and Staphylococcu saureus (S. saureus
Gram-positive) bacteria were evaluated by using modified Kirby Bauer method and colony forming count method. The results show that Ag nanoparticles are well dispersed on BCF surface via in situ chemical-reduction. The Ag/BCF hybrid nanofiber presents strong antibacterial property and thus offers its candidature for use as functional antimicrobial agents.
关键词
Keywords
references
The trial reading is over, you can activate your VIP account to continue reading.
Silver modified Cu/SiO2 catalyst for the hydrogenation of methyl acetate to ethanol
Reliable, environmentally friendly method for the recycling of spent Ag/α-Al2O3 catalysts using (NH4)2Ce(NO3)6
Investigating the structural effect of electrospun nano-fibrous polymeric films on water vapor transmission
Crystallization of calcium silicate at elevated temperatures in highly alkaline system of Na2O-CaO-SiO2-H2O
Catalytic cracking of 1-butene to propylene by Ag modified HZSM-5
相关作者
Gongying Wang
Erqiang Wang
Xiangui Yang
Chunshan Li
Hui Zhao
Muhammad Naeem Younis
Zhiheng Ren
Tao Qi
相关机构
Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences
National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences
CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, The National Key Laboratory of Clean and Efficient Coking Technology, Beijing Key Laboratory of Ionic Liquids Clean Process, Institute of Process Engineering, Chinese Academy of Sciences
Zhongke Langfang Institute of Process Engineering
School of Chemical Science, University of Chinese Academy of Sciences