巫晓华,么丹阳,蒋佳莉,周邓飞,王秀华
WU Xiao-hua,YAO Dan-yang,JIANG Jia-li,ZHOU Deng-fei,WANG Xiu-hua

• 1:浙江理工大学纺织纤维材料与加工技术国家地方联合工程实验室

摘要(Abstract)：

采用静电纺丝的方法,并结合紫外还原技术,成功制备了Ag纳米颗粒(AgNPs)-醋酸纤维素(CA)纳米纤维。重点研究了溶剂和AgNO3浓度对纤维形貌和AgNPs的分散性及粒径的影响。结果表明:丙酮、DMAc和水(质量比为7∶2∶1)的混合溶液是纺制AgNPs-CA纳米纤维的合适溶剂,在该溶剂体系下,静电纺丝状况较好,AgNPs的尺寸和分布也较理想;随AgNO3添加量的增加,纳米纤维的直径降低,纤维上AgNPs的数量增加;当AgNO3质量分数为0.5%时,AgNPs-CA纳米纤维对金黄色葡萄球菌和大肠埃希菌都具有很好的抗菌效果。
A series of antimicrobial ultrafine fibers with silver nanoparticles(AgNPs) were prepared by di-rect electrospinning of cellulose acetate(CA) solution with silver nitrate, following by UV irradiation. The ef-fect of different solvents and concentration of AgNO3 on the fiber morphology, dispersity and grain size of Ag-NPs were focused on. The results showed that the mixed solvent of acetone, DMAc and water(mass ratio7∶2∶1)was appropriate for electrospinning along with a uniform distribution of AgNPs on the fibers. More-over, the diameter of nanofiber decreased with the increasing of the concentration of AgNO3, and the ultrafine AgNPs-CA nanofibers with adding content of 0.5% AgNO3 showed strong anti-bacterial activity.

关键词(KeyWords)： 醋酸纤维素;Ag纳米颗粒;静电纺丝;抗菌性能
cellulose acetate,Ag nanoparticles,electrospinning,anti-bacterial property

Abstract:

Keywords:

基金项目(Foundation): 浙江省科技成果转化推广工程项目(计划编号2013T101)

作者(Author): 巫晓华,么丹阳,蒋佳莉,周邓飞,王秀华
WU Xiao-hua,YAO Dan-yang,JIANG Jia-li,ZHOU Deng-fei,WANG Xiu-hua

DOI: 10.16090/j.cnki.hcxw.2015.05.010

参考文献(References)：

• [1]Fang X,Ma H,Xiao S L,et al.Facile immobilization of gold nanoparticles into electrospun polyethyleneimine/polyvinyl alcohol nanofibers for catalytic applications[J].Journal of Materials Chemistry,2011,21:4 493-4 501.
• [2]Tsunoyama H,Sakurai H,Ichikuni N,et al.Colloidal gold nanoparticles as catalyst for cabon-carbon bond formation:application to aerobic homocoupling of phenylboronic acid in water[J].Langmuir,2004,20:11 293-11 296.
• [3]Migowski P,Dupont J.Catalytic applications of metal nanoparticles in imidazolium ionic liquids[J].Chemisry-A European Journal,2007,13:33-39.
• [4]R Nirmala,F A Sheikh,et al.Synthesis and characterization of bovine femur bone hydroxyl-apatite containing silver nanoparticles for the biomedical applications[J].Journal of Nanoparticle Research,2011,13(5):1 917-1 927.
• [5]E Falletta,M Bonini,et al.Clusters of poly(acrylates)and silver nanoparticles:structure and applications for antimicrobial fabrics[J].Journal of Physical Chemical C,2008,112(31):11 758-11 766.
• [6]C Zhao,G P Jin,L L,et al.Preparation of molecular imprinted film based on chitosan/nafion/nano-silver/poly quercetin for clenbuterol sensing[J].Food Chemistry,2011,129(2):595-600.
• [7]Yaser E Greish a,Mohammed A.Meetani,et al.Effects of thermal and chemical treatments on the structural stability of cellulose acetate nanofi bers[J].Carbohydrate Polymers,2010,82:569-577.
• [8]Rocktotpal Konwarh,Niranjan Karak,Manjusri Misra.Electrospun cellulose acetate nanofibers:The present status and gamut of biotechnological applications[J].Biotechnology Advances,2013,31:421-437.
• [9]丁彬,俞建勇,等.静电纺丝与纳米纤维[M].北京:中国纺织出版社,2013:41.
• [10]SK Lim,SK Lee,SH Hwang,H Kim.Photocatalytic Deposition of Silver Nanoparticles onto Organic/Inorganic Composite Nanofibers[J].Macromolecular Materials and Engineering,2006,291:1 265-1 270.
• [11]李国平,罗运军.紫外光辐照下以PAMAM树形分子为模板制备Ag纳米簇及光致发光性能研究[J].感光科学与光化学,2007,25(4):249-256.