The Study Of Surface Electron Transfer Between Biomolecule And New Inorganic Material

Biology-inorganic interface was constructed by new well biocompatible inorganic material. The fast direct electron transfer was realized by improving the interface between the material and the biomacromolecule, which was very popular in life sciences and materials science research. We used TiO2 nanometer tube array and the two-dimensional cobalt aluminum hydrotalcite thin film constructe biocompatibility inorganic surface for immobilized enzyme to further study of the interface electron transfer. It provides a new idea to the development and application of new biomimetic material. The present paper research content mainly includes the following two parts:(1) The structural order TiO2 nanotube array was prepared by the anodic oxidation. The direct electrochemistry of hemoglobin (Hb) has been achieved after immobilized to the TiO2 nanotube array by electricity effect, which indicated that the interface of TiO2 nanotube array displays the good electrochemistry activity. Further experiment show that electron transfer process was intense dependenceand on the solution pH value and scan speed. Using this electrode to catalyse the hydrogen peroxide oxidation, displays good electrochemistry catalytic activity.(2) Co-Al-LDH with different partical size was prepared by involving separate nucleation and age step and urea method. The interface electron transfer was studied by elecreochemistry way after inserted the electricity active material. The EIS result indicated that the interface electron transfer was distinguish with different electron active interlayer. The electron transfer speed was Co-Al-Fe(CN)63"-LDH