TY - JOUR
T1 - Immobilization of cyclic N-halamine on polystyrene-functionalized silica nanoparticles
T2 - Synthesis, characterization, and biocidal activity
AU - Dong, Alideertu
AU - Zhang, Qing
AU - Wang, Tao
AU - Wang, Weiwei
AU - Liu, Fengqi
AU - Gao, Ge
PY - 2010/10/21
Y1 - 2010/10/21
N2 - Antimicrobial composites with a well-defined core-shell nanostructure were prepared through immobilization of N-halamine on polystyrene-functionalized silica nanoparticles. Evidence for immobilization of N-halamine onto polystyrene-modified silica has been inferred from different techniques like transmission electron microscopy (TEM), dynamic light scattering (DLS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), zeta potential analyses, and Fourier transform infrared (FTIR). Experimental results showed that structures and morphologies of the as-prepared hybrid nanoparticles could be well controlled. Resultant nanosized particles displayed 2-8 times higher biocidal activity against S. aureus and E. coil than the bulk counterparts, and tests indicated that these powerful and stable nanosized antimicrobials had higher biocidal efficacy against S. aureus than E. coli. The biocidal behavior makes these composite nanoparticles an ideal candidate for various important applications such as in disinfection of hygienic areas, water purification, and food packaging.
AB - Antimicrobial composites with a well-defined core-shell nanostructure were prepared through immobilization of N-halamine on polystyrene-functionalized silica nanoparticles. Evidence for immobilization of N-halamine onto polystyrene-modified silica has been inferred from different techniques like transmission electron microscopy (TEM), dynamic light scattering (DLS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), zeta potential analyses, and Fourier transform infrared (FTIR). Experimental results showed that structures and morphologies of the as-prepared hybrid nanoparticles could be well controlled. Resultant nanosized particles displayed 2-8 times higher biocidal activity against S. aureus and E. coil than the bulk counterparts, and tests indicated that these powerful and stable nanosized antimicrobials had higher biocidal efficacy against S. aureus than E. coli. The biocidal behavior makes these composite nanoparticles an ideal candidate for various important applications such as in disinfection of hygienic areas, water purification, and food packaging.
UR - http://www.scopus.com/inward/record.url?scp=77958012373&partnerID=8YFLogxK
U2 - 10.1021/jp104083h
DO - 10.1021/jp104083h
M3 - Article
AN - SCOPUS:77958012373
SN - 1932-7447
VL - 114
SP - 17298
EP - 17303
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 41
ER -