Silver nanoparticles incorporated electrospun silk fibers.
We present a simple and mass-producible method of incorporating silver nanoparticles on the surface of electrospun silk non-woven membranes for the fabrication of antimicrobial wound dressings. Nanofibrous silk membranes with fiber diameters of 460 +/- 40 nm were electrospun from an aqueous Bombyx mori fibroin solution. The electrospun membranes incorporating silver nanoparticles were prepared by dipping the membranes in aqueous silver nitrate (AgNO3) solution (0.5 or 1.0 wt%) followed by photoreduction. Field emission scanning and transmission electron microscopy showed that silver nanoparticles were generated on the electrospun silk fibroin nanofibers as well as inside them. The interaction between the silver nanoparticles and amide groups in the silk fibroin molecules was characterized using X-ray photoelectron spectroscopy.
Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Korea.
Minsung
M
Kang
Rira
R
Jung
Hun-Sik
HS
Kim
Ji Ho
JH
Youk
Hyoung-Joon
HJ
Jin
D000818:Animals; D001458:Bandages; D001672:Biocompatible Materials / Q000737:chemistry*; D012831:Bombyx / Q000737:chemistry; D003460:Crystallization / Q000379:methods; D004563:Electrochemistry / Q000379:methods*; D005349:Fibroins / Q000737:chemistry* / Q000648:ultrastructure*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods; D010316:Particle Size; D012399:Rotation; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
D001672:Biocompatible Materials; D046911:Macromolecular Substances; C482288:fibroin, silkworm; D012834:Silver; D005349:Fibroins