| dc.description | One of the most promising ways to overcome the biocide infections on medical materials is
the use of metal oxides. The nanoparticle of Titanium Dioxide doped with Silver (TiO2@Ag)
is one of the most promising materials due to the biocide properties against the Candida
albicansand Aspergillus niger. With these observations, in the present work, the
nanoparticles of TiO2@Ag were synthesized by adapting the method of Turkevich [1] and in
the sequence, they were incorporated in the polymeric blend of High Melt Strength
Polypropylene (HMSPP)[1]/Styrene-Ethylene/Butadiene-Styrene (SEBS). Following that
incorporation, it was obtained thin films of 0,3 and 1 %wt concentrations (based in previous
results[1]) for characterization tests. The films were evaluated by Biocide tests following the
JIS 2801-10 norm with Candidaalbicans ATCC 10231 and Aspergillus niger ATCC 6275, X-ray
Diffraction (DRX), Raman Spectroscopy. On biocide tests were observed biocide activity
of the film with 0,3wt% of TiO2@Ag showed, in the logarithmic reduction of the bacteria,
count upward the standard normalized by the norm (???2), value of 3,24 of logarithmic
reduction. In the Raman Spectroscopy and DRX were confirmed the presence of the Ag on
the TiO2: DRX the peak of ?? = 23,81 ?? was attributed to TiO2@Ag on the film and on Raman
Spectroscopy the peak of 1048 cm-1refered to the NO3
-residual of the the silver nitrate, other
peaks at 1334 and 1459 cm-1of the silver indicating the presence in the film [2]. | |
