Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25446
Title: Optical colorimetric sensor strip for direct readout glucose measurement
Authors: Wang, Xd
Chen, Hx
Zhou, TY
Lin, ZJ
Zeng, JB
Xie, ZX
Chen, X
Wong, KY 
Chen, GN
Wang, XR
Keywords: Colorimetric
Direct readout
Extended detection range
Glucose sensor strip
High resolution
Issue Date: 2009
Publisher: Elsevier
Source: Biosensors and bioelectronics, 2009, v. 24, no. 12, p. 3702-3705 How to cite?
Journal: Biosensors and bioelectronics 
Abstract: A novel direct readout colorimetric optical glucose sensor strip was constructed based on a three-layer film, including a green-emitted CdTe/CdS quantum dots (QDs) layer as a stable color background, a red-fluorescent platinum-porphyrin oxygen-sensing layer and a glucose oxidase layer. The sensor achieved high resolution (up to 0.2 mmol L-1) glucose determination with a detection range from 0 to 3.0 mmol L-1. A "glucose ruler" which acts as a glucose standard colorimetric card was obtained. Glucose concentration could easily be directly readout using the "glucose ruler", which made the glucose determination rapid, convenient and easy. The effects of pH, salinity and temperature were systematically investigated. The prepared sensor was finally applied for glucose sample analysis, compared with the "glucose ruler", accurate results could be directly readout.
URI: http://hdl.handle.net/10397/25446
ISSN: 0956-5663
EISSN: 1873-4235
DOI: 10.1016/j.bios.2009.05.018
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