Abstract
Noble metal nanoparticles and traditional dyes jointly colorate silk fabrics. Gold and silver nanoparticles were in situ synthesized on silk fabrics, and the complex coloration was realized by the integration of traditional dyes into the treated silk. The localized surface plasmon resonance properties of gold and silver nanoparticles were not affected by the coloration of dyed-on silk fabrics. The combined optical properties of nanoparticles and dyes extended the color range and enhanced the color strength (K/S) of silk fabrics. Ultraviolet–visible diffuse absorption spectroscopy and scanning electron microscopy demonstrated the in situ synthesis of gold and silver nanoparticles on silk fabrics. The coloration of traditional dyes influenced the morphologies of gold and silver nanoparticles on fiber surface slightly. The silk fabrics with complex coloration showed significant antibacterial property. The complex coloration based on particular nanoparticles and dyes provides a promising strategy to develop multifunctional textiles.
Highlights
Functionalization of fibrous materials has attracted increasing interests from scientists and engineers because of the extensive applications of functional textiles
AuNPs were in situ synthesized on silk through the heat process, which led to the purple color of silk fabrics
It was reported that the colors of silk fabrics could be tuned by controlling the concentration of Au ions used for the synthesis of AuNPs.[23]
Summary
Functionalization of fibrous materials has attracted increasing interests from scientists and engineers because of the extensive applications of functional textiles. Combination of noble metal nanoparticles and traditional dyes could extend the color range of textiles and provide special functions to fibrous materials. Nanomaterials have been used for antibacterial finishing of textiles, due to their stability and effectiveness.[18] Silver and zinc oxide (ZnO) nanoparticles were coated onto cotton fabric by heat treatment, exhibiting good antibacterial property.[19] Silk fabrics were treated with AgNPs, which imparted antibacterial activity to silk fabrics.[20,21,22] Tang et al.[23] in situ synthesized AuNPs on silk to realize the coloration and antibacterial finishing of fabrics. It would lead to the development of functional fibrous materials and promote the practical applications of nanoparticle-modified textiles if traditional dyes and noble metal nanoparticles could be combined on silk. The antibacterial activity of the treated silk fabrics was evaluated against Escherichia coli (E. coli)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
