A few days ago, the research group of Professor Li Changming of the School of Materials and Energy published the title of "Rising Mesopores to Realize Direct Electrochemistry of Glucose Oxidase towards Highly Sensitive Detection of Glucose" in the internationally renowned journal "Advanced Functional Materials" (impact factor: 15.621). Mesoporous material can achieve direct electron transfer of glucose oxidase with high sensitivity glucose detection) article (DOI: 10.1002 / adfm.201903026). Southwest University is the first unit to complete this achievement. Professor Li Changming is the first corresponding author, and the 2017 doctoral student Liang Taotao under his supervision is the first author.
Porous nano-carbon materials have unique catalytic activity and biocompatibility. The development of porous nano-materials to modify electrodes, the direct electrochemistry of biomacromolecules at the interface and their mechanism exploration, the construction of suitable electrocatalytic interfaces, and a series of Biosensors and energy devices with high sensitivity provide valuable scientific applications and research basis for life sciences.
So far, there are still controversies in the academic research on the mechanism of direct electrochemistry. In this study, the pore mechanism of mesoporous carbon nanofibers (BPCNFs) material was realized by adjusting the carbonization temperature, and this material was used to fix GOx. Electrochemical CV cycles were performed in PBS saturated with N2 and Air. By observing the redox peak current, it can be found that the mesoporous BPCNFs material has a good fixation effect on GOx and can achieve a more obvious direct electrochemical process; Moreover, BET pore size adsorption desorption curve analysis shows that the mesoporosity of the material is closely related to the carbonization temperature. This work provides a reliable foundation and novel concept for how to design and optimize the pore structure of porous materials in the field of biosensing and bioelectrochemistry, effectively increase the adsorption or loading of target molecules, and realize the rapid Direct Electron Transfer (DET) process.
Professor Li Changming's research group has prepared a variety of low-cost biomass porous carbon materials, and has achieved a series of results in green energy, direct electrochemistry and sensing of biological macromolecules. The research work of Professor Li Changming's team shows that in the porous materials used in energy conversion devices including sensing and power supply, the pore structure is a very important part of the unique nanostructure. How to accurately adjust the pore structure to the energy conversion according to the reaction system Efficiency and specific power play an important role. In recent years, with Professor Li Changming as the corresponding author and Southwest University as the first unit, he has published many excellent papers in important international academic journals: Advanced Energy Materials (IF: 24.884) DOI: 10.1002 / aenm.201702545 (adjusting the macropore structure), Journal of Materials Chemistry A (IF: 10.733) DOI: 10.1039 / C7TA05931K (adjusting the micropore structure), Nanoscale (IF: 6.97) DOI: 10.1039 / C8NR08829B (adjusting the mesoporous structure) and other high-impact papers, using electrodes Kinetic analysis developed the theoretical basis of the structure-effect of the pore structure. (Correspondent: Xu Liqun Han Xiao Zhou Ao)
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