الفهرس 
Antimicrobial finishing methodOnly 14 pages are availabe for public view
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Abstract
Abstract
An antibacterial agent, such as chitosan, was used in various
concentrations. (0.5–4% o.w.s) and then measuring the nitrogen content
to get the suitable concentration that contains the highest nitrogen
content after application on cotton fabrics, where the result obtained
showed the best concentration of chitosan is 2% o.w.s, followed by
treatment of treated cotton fabric with a varied concentration of Nano
Zinc Oxide (1–10% o.w.s), which showed by the Kirby Bauer disc
diffusion method that the best concentration of Nano zinc oxide is 8%,
which gives more inhibition zone. Then the treated cotton fabric the
next step of treatment was done by treating the aforementioned
samples with varied concentrations of nano silver (3-100 ppb), and the
results obtained by using the Kirby Bauer disc diffusion method showed
that the best concentration of nano silver is 100 ppb. Finally, we
subjected both different samples of ZnO NPs or Ag NPs treated cotton
fabrics to UV irradiation for 30 min on each sideand the end result
revealed that the best concentration of ZnO NPs with UV was 8% o.w.s,
and the best concentration for AgNO 3 NPs with UV was 100 ppb. In a
parallel treatment for both different samples with ZnO NPs or Ag NPs
treated cotton fabrics, different concentrations of Methylisothiazolinone
(MIT) (50-100ppm) were used and the results were obtained. The Kirby
Bauer disc diffusion method showed that the best concentration of MIT
was 100 ppm, and the treatment of treated cotton fabric with a mixed
optimum concentration of Nano zinc oxide, Nanosilver nitrate, and
Methylisothiazolinone, the results obtained showed that the best mixing
was treatment of treated cotton textile with 100 ppbNanosilver +
8%o.w.s Nano zinc oxide plus 100 ppm (MIT). The results found that for
gram-negative bacteria (E. coli), the best result was achieved by using a
mix (MIT 100 ppm plus chitosan 2% o.w.s plus Nano zinc oxide NPs 8%
o.w.s plus Silver NPs 100 ppb). And for gram-positive bacteria (S.aureus),
the best result was obtained by using a mix (MIT 100 ppm plus chitosan
2% o.w.s plus zinc oxide NPs 8% o.w.s plus silver NPs 100 ppb). An FT-IR
spectrophotometer was used on products to illustrate chemical bonds
that occurred during the different treatments and scanning electron
microscope to show morphological change.
Keywords and phrases:
Chitosan, Nano silver, Nano zinc oxide, Methylisothiazolinone (MIT),
UV – Grafting, Cotton, Antibacterial