Nanotechnology is transforming the textile industry by embedding UV-blocking and antimicrobial agents into fabric fibres at the molecular level. This study explores the development of biocomposites and nanocomposite m...Nanotechnology is transforming the textile industry by embedding UV-blocking and antimicrobial agents into fabric fibres at the molecular level. This study explores the development of biocomposites and nanocomposite materials for UV protection and microbial resistance in clothing. Nanoscale UV-blocking agents enhance the protection of textiles against harmful ultraviolet radiation. Recent studies on composites such as ZnO/carboxymethyl chitosan, polyacrylonitrile with UV absorbers and TiO2 nanoparticles, and lignin-TiO composites have shown significant improvements in UV protection and some antibacterial activity. Techniques such as electrospinning, hydrothermal synthesis, and natural fibre welding were used to create these composites, focusing on ZnO and TiO2 nanoparticles for dual functionality. Research on nanoscale UV-blocking agents could revolutionise sun protection in clothing and offer better safety against ultraviolet radiation. Multifunctional composites with UV-blocking and antibacterial properties could advance the use of protective clothing in various industries and outdoor activities. Emphasising natural fibres and sustainable materials aligns with the global trend towards eco-friendly solutions, leading to more environmentally friendly products. This literature review aims to comprehensively review and analyze current research on UV protective knit fabrics using nanotechnology, nanocomposites, and biocomposites. It seeks to identify research gaps, evaluate different approaches, and provide insights for future developments in this field.展开更多
Titanium dioxide nanoparticle was synthesized by the reduction of titanium tetrachloride using borohydride, water as solvent, and polyvinyl-pyrrolidone as stabilizer. The average size of nano-TiO2 is estimated to be 5...Titanium dioxide nanoparticle was synthesized by the reduction of titanium tetrachloride using borohydride, water as solvent, and polyvinyl-pyrrolidone as stabilizer. The average size of nano-TiO2 is estimated to be 5 - 10 nm using a transmission electron microscope (TEM);this was confirmed by X-ray diffraction and UV-Vis spectroscopy. Nano-TiO2 was impregnated into cotton fabric to impart multifunctional properties and this was confirmed by scanning electron microscope and scanning electron microscope coupled with high energy distribution X-Ray (SEM-EDX). The TiO2 nanoparticles loaded cotton fabrics showed excellent antibacterial activity against two representative bacteria, Staphylococcus aureus (Gram positive) 96.6% and Klebsiella pneumonia (Gram negative) 95.2%. Also, TiO2 nanoparticles enhanced the self-cleaning and the protection of cotton fabrics against UV radiation in comparison with the untreated cotton fabrics. The TiO2 nanoparticles were durable in-situ cotton fabrics even after 20 laundering wash cycles.展开更多
In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method...In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method was employed,with BT extract concentrations ranging from 0.5 to 2 wt%.The BT extract exhibited strong antimicrobial properties and significant UV-protection,with a total phenolic content and IC_(50) values of 242.88±0.34 mg GAE/g and 7.83±0.03μg/mL,respectively.Incorporating 2 wt%BT extract into the PVA matrix resulted in substantial UV-light protection and enhanced tensile strength by 55.1%,tensile modulus by 167.2%,elongation at break by 53.1%,toughness by 84.3%,and crystallinity index by 21.8%.Additionally,the composite film retained moderate antimicrobial and antioxidant activity.These findings demonstrate PVAbased active packaging enriched with BT extract offers promising properties for food packaging applications,including enhanced mechanical strength,UV resistance,barrier performance,and antimicrobial protection.展开更多
文摘Nanotechnology is transforming the textile industry by embedding UV-blocking and antimicrobial agents into fabric fibres at the molecular level. This study explores the development of biocomposites and nanocomposite materials for UV protection and microbial resistance in clothing. Nanoscale UV-blocking agents enhance the protection of textiles against harmful ultraviolet radiation. Recent studies on composites such as ZnO/carboxymethyl chitosan, polyacrylonitrile with UV absorbers and TiO2 nanoparticles, and lignin-TiO composites have shown significant improvements in UV protection and some antibacterial activity. Techniques such as electrospinning, hydrothermal synthesis, and natural fibre welding were used to create these composites, focusing on ZnO and TiO2 nanoparticles for dual functionality. Research on nanoscale UV-blocking agents could revolutionise sun protection in clothing and offer better safety against ultraviolet radiation. Multifunctional composites with UV-blocking and antibacterial properties could advance the use of protective clothing in various industries and outdoor activities. Emphasising natural fibres and sustainable materials aligns with the global trend towards eco-friendly solutions, leading to more environmentally friendly products. This literature review aims to comprehensively review and analyze current research on UV protective knit fabrics using nanotechnology, nanocomposites, and biocomposites. It seeks to identify research gaps, evaluate different approaches, and provide insights for future developments in this field.
文摘Titanium dioxide nanoparticle was synthesized by the reduction of titanium tetrachloride using borohydride, water as solvent, and polyvinyl-pyrrolidone as stabilizer. The average size of nano-TiO2 is estimated to be 5 - 10 nm using a transmission electron microscope (TEM);this was confirmed by X-ray diffraction and UV-Vis spectroscopy. Nano-TiO2 was impregnated into cotton fabric to impart multifunctional properties and this was confirmed by scanning electron microscope and scanning electron microscope coupled with high energy distribution X-Ray (SEM-EDX). The TiO2 nanoparticles loaded cotton fabrics showed excellent antibacterial activity against two representative bacteria, Staphylococcus aureus (Gram positive) 96.6% and Klebsiella pneumonia (Gram negative) 95.2%. Also, TiO2 nanoparticles enhanced the self-cleaning and the protection of cotton fabrics against UV radiation in comparison with the untreated cotton fabrics. The TiO2 nanoparticles were durable in-situ cotton fabrics even after 20 laundering wash cycles.
基金funded by Universitas Andalas under the project“Riset Kolaborasi Indonesia(Skema A)”,number 3/UN16.19/PT.01.03/PRK-RKI Skema A(Host)/2023。
文摘In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method was employed,with BT extract concentrations ranging from 0.5 to 2 wt%.The BT extract exhibited strong antimicrobial properties and significant UV-protection,with a total phenolic content and IC_(50) values of 242.88±0.34 mg GAE/g and 7.83±0.03μg/mL,respectively.Incorporating 2 wt%BT extract into the PVA matrix resulted in substantial UV-light protection and enhanced tensile strength by 55.1%,tensile modulus by 167.2%,elongation at break by 53.1%,toughness by 84.3%,and crystallinity index by 21.8%.Additionally,the composite film retained moderate antimicrobial and antioxidant activity.These findings demonstrate PVAbased active packaging enriched with BT extract offers promising properties for food packaging applications,including enhanced mechanical strength,UV resistance,barrier performance,and antimicrobial protection.
