Influence of sericin/TiO2 nanocomposite on cotton fabric: Part 1. Enhanced antibacterial effect

• Published in: Carbohydrate polymers Vol. 94; no. 2; pp. 737 - 748
• Main Authors: Doakhan, S., Montazer, M., Rashidi, A., Moniri, R., Moghadam, M.B.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 15.05.2013; Elsevier
• Subjects: Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; Antibacterial activity; antibacterial properties; Applied sciences; boiling; Composites; Cotton; cotton fabric; Cotton Fiber; cross-linking reagents; durability; energy-dispersive X-ray analysis; Escherichia coli; Escherichia coli - drug effects; Exact sciences and technology; Fibers and threads; Forms of application and semi-finished materials; Fourier transform infrared spectroscopy; Gram-negative bacteria; Gram-positive bacteria; Metal Nanoparticles - chemistry; Metal Nanoparticles - ultrastructure; Microbial Sensitivity Tests; nanocomposites; Polycarboxylic acids; Polymer industry, paints, wood; scanning electron microscopy; Sercin/TiO2 nanocomposite; sericin; Sericins - chemistry; silk; Staphylococcus aureus; Staphylococcus aureus - drug effects; Technology of polymers; Titanium - chemistry; Water - chemistry; X-ray diffraction; Antibacterial activity; Polycarboxylic acids; Sercin/TiO2 nanocomposite; Cotton; Biological properties; Mechanical properties; Experimental study; Protein; Bactericidal effect; Morphology; Nanocomposite; Woven material; Antibacterial agent; Titanium oxide; Sercin/TiO; Cotton fiber; Textile finishing
• ISSN: 0144-8617; 1879-1344
• DOI: 10.1016/j.carbpol.2013.01.023

► Preparation of novel sericin/TiO2 nanocomposite for application on textile. ► Stabilization of nanocomposite on cotton fabric using polycarboxylic acid. ► Obtaining enhanced antibacterial cotton fabric using sericin/TiO/CA or BTCA. ► Introducing synergistic antibacterial effect of nanocomposite. Sericin as a biological material was extracted from raw silk by boiling in hot water and nano-TiO2 was dispersed in its solution. The prepared finishing agents with and without polycarboxylic acid cross-linking agents were treated on cotton fabric using pad-dry-cure. Presence of sericin, nano-TiO2, and cross-linking agents on cotton fabric was confirmed by at least one of the following experimental FTIR, SEM, EDX, and XRD. The antibacterial activity and the durability of modified cotton fabrics were investigated against one Gram-positive bacterium (Staphylococcus aureus) and one Gram-negative bacterium (Escherichia coli). The finishing treatment on the cotton fabric was more effective against S. aureus than E. coli. The fabrics treated with nano-TiO2 were possessed more activity against bacteria as compared to sericin and also considerably improved with given nanocomposite. The antibacterial activity of treated fabrics with cross-linking agents has not been considerably changed after 20 and 40 launderings. The fabrics treated with given nanocomposites did not dramatically affect the breaking strength.