Sonocatalytic damage of composite TiO2/ZnO powder to bovine serum albumin under ultrasonic irradiation

作者：Wang Jun^*; Wang Shixian; Liu Bin; Guo Ying; Zhang Liqun; Chen Xia; Xu Rui; Zhang Xiangdong

来源：Inorganic Materials, 2010, 46(6): 644-650.

DOI：10.1134/S0020168510060154

The composite TiO2/ZnO was prepared by mixing nano-sized TiO2 and ZnO powders directly, in the molar proportion of 4:6, followed by heat-treatment at 500A degrees C for 40 min. The products were charactered by powder X-ray diffraction and transmission electron microscopy. The test of sonocatalytic activities of the composite TiO2/ZnO powders was carried out through the damage of bovine serum albumin (BSA). Otherwise, the effects of several factors on the damage of BSA molecules were evaluated by means of UV-vis and fluorescence spectra. It was found that the damage degree was aggravated with the increase of ultrasonic irradiation time and composite TiO2/ZnO addition amount. These research results were of great significance for driving sonocatalytic method to treat tumor in clinic application.

• 出版日期2010-6
• 单位辽宁大学