Nano Express

Nanoscale Research Letters

, Volume 4, Issue 10, pp 1141-1145

Open Access This content is freely available online to anyone, anywhere at any time.

Ultra-Sensitivity Glucose Sensor Based on Field Emitters

  • Huibiao LiuAffiliated withCAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences Email author 
  • , Xuemin QianAffiliated withCAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of SciencesSchool of Physical Science and Technology, Suzhou University
  • , Shu WangAffiliated withCAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences
  • , Yuliang LiAffiliated withCAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences
  • , Yinglin SongAffiliated withSchool of Physical Science and Technology, Suzhou University
  • , Daoben ZhuAffiliated withCAS Key Laboratory of Organic Solid, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences

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.

Keywords

ZnO nanorod arrays Glucose sensor Field emitter High sensitivity