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Your search keyword '"Zhou, Yi-Ge"' showing total 195 results
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195 results on '"Zhou, Yi-Ge"'

16. Impact electrochemistry for biosensing: advances and future directions.

Author

Zhang, Jian-Hua, Song, Dian-Mei, and Zhou, Yi-Ge

Subjects
ELECTROCHEMISTRY, RESEARCH personnel, NANOPARTICLES, HETEROGENEITY, BIOELECTROCHEMISTRY
Abstract

Impact electrochemistry allows for the investigation of the properties of single entities, ranging from nanoparticles (NPs) to soft bio-particles. It has introduced a novel dimension in the field of biological analysis, enhancing researchers' ability to comprehend biological heterogeneity and offering a new avenue for developing novel diagnostic devices for quantifying biological analytes. This review aims to summarize the recent advancements in impact electrochemistry-based biosensing over the past two to three years and provide insights into the future directions of this field. [ABSTRACT FROM AUTHOR]

Published
2024
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39. Autocatalytic Surface Reduction‐Assisted Synthesis of PtW Ultrathin Alloy Nanowires for Highly Efficient Hydrogen Evolution Reaction

Author

Gao, Lei, primary, Yang, Zhilong, additional, Sun, Tulai, additional, Tan, Xin, additional, Lai, Wenchuan, additional, Li, Mengfan, additional, Kim, Jeonghyeon, additional, Lu, Yang‐Fan, additional, Choi, Sang‐Il, additional, Zhang, Wenhua, additional, Ma, Chao, additional, Smith, Sean C., additional, Zhou, Yi‐Ge, additional, and Huang, Hongwen, additional

Published
2022
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44. Simple approach for efficient encapsulation of enzyme in silica matrix with retained bioactivity

Author

Yang, Si, Jia, Wen-Zhi, Qian, Qing-Yun, Zhou, Yi-Ge, and Xia, Xing-Hua

Subjects
Silica -- Properties, Silica -- Usage, Microencapsulation -- Methods, Microencapsulation -- Equipment and supplies, Biomolecules -- Properties, Electrochemistry -- Research, Hydroxides -- Properties, Biosensors -- Design and construction, Biosensors -- Properties, Chemistry
Abstract

We developed an alcohol-free sol--gel approach to encapsulate biomolecules such as horseradish peroxidase (HRP) in an electrochemically induced three-dimensional porous silica matrix by a one-step process. In this sol--gel process, the electrochemically generated hydroxyl ions at the elecrode surface by applying cathodic current promote the hydrolysis of ammonium fluorosilicate to produce silica, and simultaneously the generated hydrogen bubbles play an important role in forming porous silica matrix. If HRP is mixed with ammonium fluorosilicate solution, it can be encapsulated in the forming silica matrix. Since there is no ethanol involved in the entire procedure, bioactivities of the encapsulated HRP can be effectively retained. As revealed by scanning electron microscopy (SEM) characterization, the resultant silica matrix has interconnected and network-like porous structures. Macroporous holes induced by hydrogen bubbles scattering on the relatively flat areas of porous structure can be observed. Such structure free from cracks provides effective mass transport and long-term stability. Scanning electrochemical microscope (SECM) characterization shows that the immobilized HRP molecules uniformly distribute in the silica matrix. The present HRP electrochemical biosensor exhibits a quick response (within 5 s) to [H.sub.2][O.sub.2] in the concentration range from 0.02 to 0.20 mM (correlation coefficient of 0.9934) with a detection limit of 3 [micro]M. The apparent Michaelis--Menten constant is 0.88 mM. The present alcohol-free sol--gel approach is effective for biomolecule encapsulation and is promising for the construction of biosensors, bioelectronics, and biofuel cells.

Published
2009

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