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One-step synthesis of silver nanoparticle-filled nylon 6 nanofibers and their antibacterial properties

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A novel and facile one-step approach to in situ synthesize silver nanoparticle-filled nylon 6 nanofibers by electrospinning is reported. The method does not need post-treatments and can be carried out at ambient conditions without using additional chemicals. It employs the electrospinning solvent as a reducing agent for in situ conversion of AgNO3 into silver nanoparticles during the solution preparation. The resultant silver nanoparticle-filled nylon 6 hybrid nanofibers show an excellent fibrous structure (fiber diameter at 50–150 nm), with narrow size 2–4 nm silver nanoparticles uniformly dispersed throughout the nylon 6 matrix. DSC analysis shows that the in situ incorporation of silver nanoparticles increased the Tg and crystallinity of the resultant nanofibers. These silver nanoparticle-filled nylon 6 nanofibers exhibit a steady and long-lasting silver ion release behavior, and robust antibacterial activity against both Gram-positive B. cereus and Gram-negative E. coli microorganisms.
Shi, Quan , Vitchuli, Narendiran , Nowak, Joshua , Noar, Jesse , Caldwell, Jane M. , Breidt, Frederick , Bourham, Mohamed , McCord, Marian , Zhang, Xiangwu
nanoparticles , nylon , nanofibers , polymers , antibacterial properties , silver nitrate , reducing agents , formic acid , Gram-positive bacteria , Gram-negative bacteria , dispersibility , thermal properties
p. 10330-10335.
Includes references
Journal of materials chemistry 2011, v. 21, issue 28
Journal Articles, USDA Authors, Peer-Reviewed
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