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Fabrication Process of Natural Silk Including Ag Nano-particle  

Jung, I-Yeon (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Kang, Pil-Don (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Kim, Kee-Young (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Ryu, Kang-Sun (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Sohn, Bong-Hee (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Kim, Yong-Soon (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Kim, Mi-Ja (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Lee, Kwang-Gill (Department of Agricultural Biology, National Institute of Agricultural Science and Technology, RDA)
Chai, Chang-Keun (Korea Plating Materials Technology)
Koh, Seok-Keun (Plasma & Ionbeam)
Publication Information
Journal of Sericultural and Entomological Science / v.49, no.1, 2007 , pp. 24-27 More about this Journal
Abstract
Silkworm fed on the mulberry leaf mixed with silver nanoparticle to produce silver-nanoparticle embedded cocoon. Comparative analysis of silver content of cocoon shell, percentage of pupation and percentage of cocoon-shell weight showed that the optimum concentration and the feeding period of mulberry leaf mixed with silver nanoparticle were 500 ppm and the period from 3 day 5 instar to mounting of silkworm. The silver content of cocoon was observed variously by silkworm breedings. C212 variety makes pale yellow cocoon with the highest silver content(69%). Using the scanning electron microscope, we showed that the size of silver nanoparticles in silk was observed from 26.98 to 99.81nm. Silver-nanoparticle embedded silk is expected to use as high valuable application owing to the different functional properties including antibiotic characteristics and mechanical and electronic properties. The applicable fields expected is antistatic and/or electronic products with biological degradable natural materials.
Keywords
Silkworm; Silver nanoparticle; Cocoon filament;
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