A novel mesoporous TiO2 material (m-TiO2) was obtained by a soft chemistry method in the absence of any surfactants or templates. It was shown that the m-TiO2 had an anatase crystalline structure with well-distributed mesopores from XRD
N2 adsorption-desorption isotherms
FESEM and TEM. The FT-IR results indicated that glucose oxidase (GOx) could be well immobilized on m-TiO2. The electrochemical tests of the fabricated Nafion/GOx/m-TiO2 modified glass carbon electrode (GCE) showed fast direct electron transfer between GOx molecules and electrode surface
exhibiting a linear response to glucose concentration ranging from 0.1 to 1.2 mmol·L-1
and good sensitivity of 3.44 μA·mmol-1·L·cm-2
which proved that the novel m-TiO2 was a promising material for immobilization of GOx and fabrication of glucose biosensors.