A potentially versatile procedure for surface modification of nanometer silica is illustrated by N, N-dicyclohexylcarbodiimide (DCC) mediated amidation of stearic acid.
This letter compared catalase-, peroxidase- and cytochrome P450-like catalytic activities of 15 water-soluble metalloporphyrins produced from Fe, Mn and Co ions and 5 porphyrins. The metalloporphyrins with Fe and Mn a...This letter compared catalase-, peroxidase- and cytochrome P450-like catalytic activities of 15 water-soluble metalloporphyrins produced from Fe, Mn and Co ions and 5 porphyrins. The metalloporphyrins with Fe and Mn as central ions show relatively high catalytic activities of catalase and peroxidase at pH 11.0. Only Mn-meso-tetrakis (4-N-methylpyridinium) porpho-phine of the 15 metalloporphyrins exhibits high cytochrome P450-like activity. Effects of imidazole on the catalytic reactions were also studied.展开更多
基金This project was supported by China Postdoctoral Science Foundation and Tsinghua-Zhongda Postdoctoral Science Foundation.
文摘A potentially versatile procedure for surface modification of nanometer silica is illustrated by N, N-dicyclohexylcarbodiimide (DCC) mediated amidation of stearic acid.
文摘This letter compared catalase-, peroxidase- and cytochrome P450-like catalytic activities of 15 water-soluble metalloporphyrins produced from Fe, Mn and Co ions and 5 porphyrins. The metalloporphyrins with Fe and Mn as central ions show relatively high catalytic activities of catalase and peroxidase at pH 11.0. Only Mn-meso-tetrakis (4-N-methylpyridinium) porpho-phine of the 15 metalloporphyrins exhibits high cytochrome P450-like activity. Effects of imidazole on the catalytic reactions were also studied.
