http://www.physorg.com/news97384337.html
....
The upper portion of the dress contains cotton coated with silver
nanoparticles. Dong first created positively charged cotton fibers using
ammonium- and epoxy-based reactions, inducing positive ionization. The
silver particles, about 10-20 nanometers across (a nanometer is
one-billionth of a meter) were synthesized in citric acid, which
prevented nanoparticle agglomeration.
Silver possesses natural antibacterial qualities that are strengthened
at the nanoscale, thus giving Ong's dress the ability to deactivate many
harmful bacteria <http://www.physorg.com/news97384337.html#> and
viruses. The silver infusion also reduces the need to wash the garment,
since it destroys bacteria, and the small size of the particles prevents
soiling and stains.
......
Marshall
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