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Antimicrobial cellulose acetate nanofibers containing silver nanoparticles |
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| Authors: | Won Keun Son Ji Ho Youk Won Ho Park |
| Affiliation: | aResearch Institute of Advanced Materials, Chungnam National University, Daejeon 305-764, South Korea bDepartment of Advanced Fiber Engineering, Division of Nano-Systems, Inha University, Incheon 402-751, South Korea cDepartment of Textile Engineering, Chungnam National University, Daejeon 305-764, South Korea |
| Abstract: | It was found for the first time that polymer nanofibers containing Ag nanoparticles on their surface could be produced by UV irradiation of polymer nanofibers electrospun with small amounts of silver nitrate (AgNO3). When the cellulose acetate (CA) nanofibers electrospun from CA solutions with 0.5 wt% of AgNO3 were irradiated with UV light at 245 nm, Ag nanoparticles were predominantly generated on the surface of the CA nanofibers. The number and size of the Ag nanoparticles were continuously increased up to 240 min. The Ag+ ions and Ag clusters diffused and aggregated on the surface of the CA nanofibers during the UV irradiation. The Ag nanoparticles with an average size of 21 nm exhibited strong antimicrobial activity. |
| Keywords: | Cellulose acetate Ag nanoparticles Electrospinning UV irradiation Antimicrobial activity |
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