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Surface Functionalization of “Rajshahi Silk” Using Green Silver Nanoparticles

School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China
Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
NUS Graduate School for Integrative Science & Engineering, National University of Singapore, 28 Medical Drive, Singapore 117456, Singapore
Research Institute of Flexible Materials, School of Textiles & Design, Heriot-Watt University, Galashiels TD1 3HF, UK
Institutes of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Authors to whom correspondence should be addressed.
Academic Editor: Stephen C. Bondy
Fibers 2017, 5(3), 35;
Received: 14 August 2017 / Revised: 23 August 2017 / Accepted: 25 August 2017 / Published: 18 September 2017
In this study, a novel functionalization approach has been addressed by using sodium alginate (Na-Alg) assisted green silver nanoparticles (AgNPs) on traditional “Rajshahi silk” fabric via an exhaustive method. The synthesized nanoparticles and coated silk fabrics were characterized by different techniques, including ultraviolet–visible spectroscopy (UV–vis spectra), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT-IR), which demonstrated that AgNPs with an average size of 6–10 nm were consistently deposited in the fabric surface under optimized conditions (i.e., pH 4, temperature 40 °C, and time 40 min). The silk fabrics treated with AgNPs showed improved colorimetric values and color fastness properties. Moreover, the UV-protection ability and antibacterial activity, as well as other physical properties—including tensile properties, the crease recovery angle, bending behavior, the yellowness index, and wettability (surface contact angle) of the AgNPs-coated silk were distinctly augmented. Therefore, green AgNPs-coated traditional silk with multifunctional properties has high potential in the textile industry. View Full-Text
Keywords: silver nanoparticles; silk; functional finishing; wettability; surface modification silver nanoparticles; silk; functional finishing; wettability; surface modification
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Mahmud, S.; Sultana, M.Z.; Pervez, M.N.; Habib, M.A.; Liu, H.-H. Surface Functionalization of “Rajshahi Silk” Using Green Silver Nanoparticles. Fibers 2017, 5, 35.

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