A light-assisted in situ embedment of silver nanoparticles to prepare functionalized fabrics
| Autor: | Crystal Yu Fang Hay, Her Shuang Toh, Liyana Bte Mohd Amin, Roxanne Line Faure, Saji George |
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| Rok vydání: | 2017 |
| Předmět: |
in situ synthesis
business.product_category Materials science Biomedical Engineering Nanoparticle Bioengineering BPEI 02 engineering and technology Polyethylene glycol 010501 environmental sciences 01 natural sciences Silver nanoparticle branched polyethylenimine chemistry.chemical_compound Microfiber medicine Original Research 0105 earth and related environmental sciences chemistry.chemical_classification Polyvinylpyrrolidone technology industry and agriculture Polymer light-assisted nanoparticle synthesis 021001 nanoscience & nanotechnology photoreduction Polyester Silver nitrate chemistry Chemical engineering antibacterial fabrics 0210 nano-technology business Nanotechnology Science and Applications medicine.drug |
| Zdroj: | Nanotechnology, Science and Applications |
| ISSN: | 1177-8903 |
| DOI: | 10.2147/nsa.s139484 |
| Popis: | Her Shuang Toh,1 Roxanne Line Faure,2 Liyana Bte Mohd Amin,1 Crystal Yu Fang Hay,1 Saji George1,3 1Centre of Sustainable Nanotechnology, School of Chemical and Life Sciences, Nanyang Polytechnic, Singapore, Singapore; 2DUT Analyses Biologiques et Biochimiques, IUT Génie Biologique, Dijon, France; 3Department of Food Science and Agricultural Chemistry, Macdonald Campus, McGill University, Sainte-Anne-de-Bellevue, QC, Canada Abstract: This article presents a simple, one-step, in situ generation of silver nanoparticle-functionalized fabrics with antibacterial properties, circumventing the conventional, multistep, time-consuming methods. Silver nanoparticle formation was studied with a library of capping agents (branched polyethylenimine [BPEI] of molecular weight [Mw] 10,000 and 25,000, polyvinylpyrrolidone, polyethylene glycol, polyvinylalcohol and citrate) mixed with silver nitrate. The mixture was then exposed to an assortment of light wavelengths (ultraviolet, infrared and simulated solar light) for studying the light-assisted synthesis of nanoparticles. The formation of nanoparticles corresponded with the reducing capabilities of the polymers wherein BPEI gave the best response. Notably, the irradiation wavelengths had little effect on the formation of the nanoparticle when the total irradiation energy was kept constant. The feasibility of utilizing this method for in situ nanoparticle synthesis on textile fabrics (towel [100% cotton], gauze [100% cotton], rayon, felt [100% polyester] and microfiber [15% nylon, 85% polyester]) was verified by exposing the fabrics soaked in an aqueous solution of 1% (w/v) AgNO3 and 1% (w/v) BPEI (Mw 25,000) to light. The formation of nanoparticles on fabrics and their retention after washing was verified using scanning electron microscopy and quantified by inductively coupled plasma optical emission spectrometry. The functional property of the fabric as an antibacterial surface was successfully demonstrated using model bacteria such as Staphylococcus aureus, Enterococcus faecalis and Escherichia coli. The successful generation of silver nanoparticle-functionalized textile fabrics without the use of caustic chemicals, solvents and excessive heating presents a major step towards realizing a scalable green chemistry for industrial generation of functionalized fabrics for a wide range of applications. Keywords: BPEI, branched polyethylenimine, in situ synthesis, photoreduction, antibacterial fabrics, light-assisted nanoparticle synthesis |
| Databáze: | OpenAIRE |
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