Results showed a decline in low density lipoprotein

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Unformatted text preview: ed with RPO compared to the control group. 154 3rd ICYC 2010 Universiti Sains Malaysia MAT-P2 23rd-25th June 2010 PREPARATION AND ANTIMICROBIAL BEHAVIOR OF TITANIA (Ni-Cu ALLOY DOPED TiO2) POWDER Yetria Rilda Department of Chemistry, Faculty of Mathematic and Natural Scienc e, Andalas University, Padang, West Sumatra, Indonesia E-mail: yetriarilda@yahoo.com Titania powder (Ni-Cu alloy doped TiO2) were prepared by using sol-gel technology. The influence of doped ion and calcination temperature on the structure and particle size was investigated by XRD, TEM and BET. In this studied determined activity antimicrobial of two -group of microbial which are known as bacteria and fungus in pathogenic-organisms: Escherichia coli, staphylococcus aureus, Aspergillus niger, 5 and Fusarium semitectum. Aqueous suspension of the microbial (1.10 CFU/mL), in the presence of NiCu-TiO2 were irradiated with a UV λm: 365 nm for various time periods in order to simulate UV radiation. Efficient microbial effect of titania was evaluated with diffusion methods with used titania concentration as 1.5 – 2.0 g/mL. The antimicrobial behavior of titania (Ni-Cu alloy doped TiO2) powder was explicitly observed using scanning electron microscopy and cell wall damage was found. MAT-P3 SYNTHESIS AND CHARACTERISATION STUDIES ON RICE HUSK ASH SILICA, SUPPORTED ON GUANIDINE, UREA AND SACCHARINE-COBALT COMPLEX Muazu Samaila Batagarawa, Farook Adam and Kasim Mohammed Hello School of Chemical Science, Universiti Sains Malaysia, 11800 Pulau Pinang, Malaysia E-mail: smuazub@yahoo.com Silica extracted from Rice Husk Ash was silylated with chloropropyltriethoxysilane (CPTES) at varying temperature and pH, for optimization. The Silated silica was later organofunctionalised with guanidine, urea and saccharine-Cobalt complex for the synthesis of heterogeneou s catalysts. FT-IR studies show -1 strong O-H absorption bands at 3401 - 3452 cm as well as Si-O-Si stretching vibrations at 1073 and -1 1057 cm , confirming the silica-organic linkage...
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