TEXTILE FINISHING WITH CHITOSAN AND SILVER NANOPARTICLES AGAINST Escherichia coli ATCC 8739

Abstract

The finishing process with the antibacterial agents that protect the environment and human health is gaining importance. This study aims 1) to develop new generation antibacterial finishes using chitosan as a binder for nano-Ag coatings, 2) to determine the applicability of chitosan from shrimp and crayfish for textile production and 3) to contribute to environmentally friendly textile production. Chitosan from shrimp and crayfish wastes were used as adhesive in the binding of nanoparticles to fabric surfaces. The bonding properties of the nano-Ag particles on the fabric surfaces were investigated by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and Energy dispersive x-ray spectroscopy (EDX) analysis. The antibacterial effectiveness of fabrics against Escherichia coli ATCC 8739 were tested according to JIS L 1902-2015 standard. The crayfish and shrimp chitosan formed a colorless film and coated the nano-Ag particles homogeneously on the cotton fabric. Antibacterial activity values were calculated as 3.10 and 5.74 for crayfish and shrimp chitosan coated cotton fabrics and as 5.37 and 5.10 for crayfish and shrimp chitosan+nano Ag coated cotton fabrics, respectively. Chitosan nano-Ag coating which exhibited a good antibacterial activity (99.99% reduction) against E. coli ATCC 8739 can be used in the manufacture of garments such as medical textiles, baby clothes, and underwear. The use of chitosan as a binder can reduce the use of chemicals in textile printing and pigment dying in finishing materials, pollutant discharges and emissions from industrial sources. Also, it presents innovative solutions for the protection of human and environmental health. Özet: Çevreyi ve insan sağlığını koruyan antibakteriyel malzemelerle bitim işlemi son yıllarda önem kazanmaktadır. Bu çalışmanın amacı da 1) kitosanı nano-gümüş (Ag) kaplamalar için bağlayıcı olarak kullanarak yeni nesil antibakteriyel apreler geliştirmek, 2) karides ve kerevitlerden üretilen kitosanın tekstil üretimi için uygulanabilirliğini belirlemek ve 3) çevre dostu tekstil üretimine katkıda bulunmaktır. Çalışmada, karides ve kerevit atıklarından üretilen kitosan, Ag nanopartiküllerinin kumaş yüzeylerine bağlanmasında yapışkan olarak kullanılmıştır. Nano-Ag partiküllerinin kitosan aracılığıyla kumaş yüzeylerine bağlanma özellikleri Fourier dönüşümlü kızılötesi spektroskopi (FTIR), Taramalı elektron mikroskobu (SEM) ve Enerji dağılımlı x ışını (EDX) analizleri ile incelenmiştir. Kumaşların Escherichia coli ATCC 8739' ye karşı antibakteriyel aktiviteleri JIS L 1902-2015 standardına göre test edilmiştir. Çalışmanın sonuçları kerevit ve karides kitosanlarının renksiz bir film oluşturduğunu ve Ag nanoparçacıklarını pamuklu kumaş üzerine homojen bir şekilde kapladığını göstermiştir. Kerevit kitosanı ve karides kitosanı ile kaplı pamuklu kumaşların antibakteriyel aktivite değerleri sırasıyla, 3,10 ve 5,74 olarak hesaplanırken, kerevit kitosanı+nano-Ag ve karides kitosanı+nano-Ag ile kaplanmış pamuklu kumaşların antibakteriyel aktivite...

Chitosan and nano-TiO2 coating improves the flame retardancy of dyed and undyed denim fabrics by increasing the charring

“…Later, the dried crayfish shells were ground. Chitin isolation from the crayfish was carried out in three stages: deproteinization, demineralization and decolorization according to Erdoğan 34 In the demineralization stage, the ground sample was treated with a 2M 250 mL HCl solution (v/v), while in the deproteinization stage, it was treated with a 2M 250 mL NaOH solution (w/v). After treatment with acid and base, it was subjected to depigmentation in a mixture of purified water, methyl alcohol and chloroform in a ratio of 4:2:1.…”

Chitosan: A biopolymer for textile processes and products

“…102 Most recent works has been carried out to give antimicrobial properties to textile fabrics using CS. [103][104][105][106][107] In this study, CS was coated on fabric surfaces via various cross-linkers or used in composites (or nanocomposites) with various antibacterial agents. Rahman Bhuiyan et al 108 coated cotton fabrics by applying different concentrations, such as 0.25%, 0.5%, 1.0% and 1.5% of CS solution.…”

“…113 Recently, in order to reduce the use of chemicals and protect human and environmental health, a new generation of antibacterial finishes based on CS nanocomposites has been developed. Erdo gan 103 studied the antibacterial effectiveness against E. coli ATCC 8739 of cotton fabrics coated with crayfish and shrimp CS/nanosilver composites. Antibacterial activity values were calculated as 5.37 and 5.10 for crayfish and shrimp CS/nano-Ag-coated cotton fabrics, respectively.…”

Use of Chitosan as Antimicrobial, Antiviral and Antipollution Agent in Textile Finishing

“…The homogeneous distribution of chitosan on fabrics was confirmed by dyeing tests with an acid dye and by SEM analysis (Figure 9), which showed the optimal distribution of the finish on single fibre surface. Erdogan [73] studied the antibacterial effectiveness against E. coli ATCC 8739 of cotton fabrics coated with crayfish and shrimp chitosan/nanosilver composite.…”