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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Fibre & Textile Research (IJFTR) >
IJFTR Vol.35 [2010] >
IJFTR Vol.35(1) [March 2010] >
| Title: | Synthesis of spray dried polyvinyl pyrrolidone coated silver nanopowder and its application on wool and cotton for microbial resistance |
| Authors: | Raja, A S M
Thilagavathi, G
Kannaian, T |
| Keywords: | Antimicrobial finish
Cotton
Polyvinyl pyrrolidone
Silver nanoparticle
Sonication
Spray drying
Wool |
| Issue Date: | Mar-2010 |
| Publisher: | CSIR |
| Abstract: | Silver
nanoparticle - polyvinyl pyrrolidone (PVP) composite containing 100 ppm of
silver has been synthesized in powder form for textile applications, using
sono-chemical method comprising sonication and reduction with trisodium citrate
followed by spray drying. The synthesized PVP coated silver nanopowder is then
characterized by UV-Visible spectra, atomic absorption spectra, transmission
electron microscope and energy dispersive analysis of X-rays. The results
indicate the presence of silver particle of the size 50-60 nm in the
synthesized powder. The silver nanopowder has been applied on cotton and wool
to impart antimicrobial efficacy by exhaustion method. The treated cotton
fabric shows a clear microbial resistance with 35-40 mm zone of inhibition in
the agar diffusion test against Staphylococcus
aureus, Escherichia coli and Pseudomonas aeruginosa. The treated wool fabric shows 100%, 97% and 99%
antimicrobial efficacy in the
quantitative AATCC 100 test against the above-mentioned
microorganisms respectively. |
| Page(s): | 59-64 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Source: | IJFTR Vol.35(1) [March 2010]
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