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Full-Text Articles in Electrical and Computer Engineering
Design And Development Of Microcantilever As A Platform For Moisture Sensing, Qi Chen
Design And Development Of Microcantilever As A Platform For Moisture Sensing, Qi Chen
Doctoral Dissertations
Ultra-sensitive and selective moisture sensors are needed in various industries for processing control or environmental monitoring. As an outstanding sensor platform, microcantilevers have potential application in moisture detection due to their advantages, such as low-level moisture detection limits, high accuracy, quick response time, high reproducibility, good recovery rate and low in cost. Our research results will lead to the first of its kind for the commercialization of a microcantilever-based moisture sensor used for industrial and household applications. The novelty of the present work is the development of SiO2 and Si cantilevers, which were fabricated using developed processes and modified with …
Preserved Enzymatic Activity Of Glucose Oxidase Immobilized On Unmodified Electrodes For Glucose Detection, Gang Wang, Ngee Mei Thai, Siu-Tung Yau
Preserved Enzymatic Activity Of Glucose Oxidase Immobilized On Unmodified Electrodes For Glucose Detection, Gang Wang, Ngee Mei Thai, Siu-Tung Yau
Electrical and Computer Engineering Faculty Publications
Glucose sensing electrodes have been realized by immobilizing glucose oxidase (GOx) on unmodified edge plane of highly oriented pyrolytic graphite (epHOPG) and the native oxide of heavily doped silicon (SiO2/Si). Both kinds of electrode show direct interfacial electron transfer due to the redox process of the immobilized GOx. The measured formal potential of the redox process agrees with that of the native enzyme, suggesting that the immobilized GOx has retained its enzymatic activity. The electron transfer rates of the GOx immobilized electrode are 2s−1 for GOx/epHOPG electrode and 7.9s−1 for GOx/SiO2/Si electrode, which …