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Title: Colorful and antibacterial nylon fabric via in-situ biosynthesis of chitosan mediated nanosilver
Authors: Hasan, KMF
Wang, HN
Mahmud, S
Jahid, MA 
Islam, M
Jin, WB
Cao, GY
Issue Date: Nov-2020
Source: Journal of materials science and technology (Brazil), November-December 2020, v. 9, no. 6, p. 16135-16145
Abstract: Herein, functionalization of nylon fabric surfaces in terms of excellent coloration and antibacterial properties were developed by in-situ synthesis of chitosan mediated silver nanoparticles (AgNPs). No toxic chemicals were used to ensure eco-friendly conditions. The variation of colors (nearly red, yellow, and blue) was achieved by only regulating precursor concentration and utilization of ascorbic acid. Functionalized nylon fabrics were then characterized by investigating surface morphology, elemental mapping, metal composition, and chemical linkage among compositing components. Results exposed that the particles are within the nano-range size, spherical in shapes, homogenously dispersed over the surfaces, and firmly attached to the nylon fiber by molecular force or double networking properties of chitosan. Color characteristics demonstrate a uniform shade due to the localized surface plasmon resonance (LSPR) properties of AgNPs with brilliant colorfastness and color strength (K/S). The antibacterial properties are found to be significant, with more than 88% bacterial reduction rate against both the gram-positive and gram-negative bacteria even after 20 washing cycles. Overall, this nylon functionalization protocol without using traditional chemicals like crosslinkers, binders, or coating agents provides the desired permanent efficiency and safe product.
Keywords: Silver nanoparticles
Nylon functionalization
Chitosan
Primary coloration
Antimicrobial
Publisher: Elsevier Editora Ltda
Journal: Journal of materials science and technology (Brazil) 
ISSN: 2238-7854
EISSN: 2214-0697
DOI: 10.1016/j.jmrt.2020.11.056
Rights: © 2020 The Author(s). Published by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
The following publication K.M.Faridul Hasan, Haona Wang, Sakil Mahmud, Md Anwar Jahid, Moyinul Islam, Wangbao Jin, Cao Genyang, Colorful and antibacterial nylon fabric via in-situ biosynthesis of chitosan mediated nanosilver, Journal of Materials Research and Technology, Volume 9, Issue 6, 2020, Pages 16135-16145, ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2020.11.056 is available at (https://www.sciencedirect.com/science/article/pii/S2238785420320226)
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