PLASMA PRETREATMENT ON TASAR SILK FABRICS COATED WITH ZnO NANOPARTICLES AGAINST ANTIBACTERIAL ACTIVITY

Abstract

Plasma pretreatment is an eco-friendly process employed to modify the surface properties and improve the adhesion properties of tasar silk fabrics. The plasma pretreatment has been carried out in DC glow discharge plasma at constant power and for different treatment durations (5, 10 and 30[Formula: see text]min). ZnO nanoparticles (ZnO NPs) play a significant role in antibacterial, cleaning and UV protection. ZnO NPs have been synthesized by the wet chemical method and the average crystallite size of the same is found to be 49[Formula: see text]nm using X-ray diffraction (XRD). Plasma treated silk fabrics are coated with ZnO NPs using vacuum thermal evaporation technique. Structural and chemical change of raw, untreated and plasma treated silk fabrics coated with ZnO NPs are analyzed by XRD and attenuated total reflection Fourier transform infrared (ATR-FTIR) studies. The surface morphologies of all the fabrics are analyzed by using scanning electron microscope (SEM), which confirms the adherence of ZnO NPs on the surface of the fabrics. Elemental analysis is carried out using energy dispersive spectroscopy, which confirms the presence of ZnO NPs on the surface of the fabrics. The improved surface property in terms of hydrophobicity is analyzed by using a contact angle test. It is found that the plasma pretreated silk fabrics coated with ZnO NPs have better antibacterial activities against Escherichia Coli bacteria.

Recent Advances in Plasma/Nanoparticles Treatments of Textile Fibers

“…Contact angle measurement clearly shows that the hydrophobic nature of coated fabrics can be increased with plasma pretreatment. SEM analysis shows the improvement of the adsorption on plasma treated fabric and EDS shows the presence of ZnO (61) . The antibacterial activity and thermal stability improve significantly after plasma pretreatment.…”

“…The improved surface property in terms of hydrophobicity is analyzed by using a contact angle test. It is found that the plasma pretreated silk fabrics coated with ZnO NPs have better antibacterial activities against Escherichia Coli bacteria (61) . ZnO coated and plasma pretreated silk fabrics showed excellent antibacterial activity against E. Coli bacteria.…”

Complex coloration and antibacterial functionalization of silk fabrics based on noble metal nanoparticles

“…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 also treated with AgNPs, which imparted antibacterial activity to silk fabrics.…”

Functionalization of Silk with In-Situ Synthesized Platinum Nanoparticles

“…Since silk is a type of protein, it is easy for microorganisms and bacteria to accumulate and proliferate on silk fibers in a humid environment [ 10 , 11 ], which can cause damage to fibers in the silk products and even bring about skin diseases. Many antibacterial agents have been applied to eliminate microbial damage to natural fibers [ 12 , 13 ]. Compared with organic reagents, inorganic nanomaterials, especially PtNPs, are stable and effective for antimicrobial applications [ 12 ].…”

“…Many antibacterial agents have been applied to eliminate microbial damage to natural fibers [ 12 , 13 ]. Compared with organic reagents, inorganic nanomaterials, especially PtNPs, are stable and effective for antimicrobial applications [ 12 ]. PtNPs have high activity [ 14 , 15 ] and selectivity for catalytic reaction.…”