Ultra-Sensitivity Glucose Sensor Based on Field Emitters

Nanoscale Research Letters - Tập 4 Số 10 - 2009
Huibiao Liu1, Xuemin Qian1, Shu Wang1, Yuliang Li1, Song Ye2, Daoben Zhu1
1CAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, People’s Republic of China
2School of Physical Science and Technology, Suzhou University, 215006, Suzhou, Jiangsu, People’s Republic of China

Tóm tắt

Abstract A new glucose sensor based on field emitter of ZnO nanorod arrays (ZNA) was fabricated. This new type of ZNA field emitter-based sensor shows high sensitivity with experimental limit of detection of 1 nM glucose solution and a detection range from 1 nM to 50 μM in air at room temperature, which is lower than that of glucose sensors based on surface plasmon resonance spectroscopy, fluorescence signal transmission, and electrochemical signal transduction. The new glucose sensor provides a key technique for promising consuming application in biological system for detecting low levels of glucose on single cells or bacterial cultures.

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Nanoscale Research Letters

Tập 4 Số 10

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