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Reversible Optical Sensor Strip for Oxygen

Authors

  • Xu-dong Wang,

    1. Department of Chemistry and Key Laboratory of Analytical Sciences of the Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China), Fax: (+86) 592-218-4530
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  • Xi Chen Prof. Dr.,

    1. Department of Chemistry and Key Laboratory of Analytical Sciences of the Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China), Fax: (+86) 592-218-4530
    2. State Key Laboratory of Marine Environmental Science, Xiamen University
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  • Zhao-xiong Xie Prof. Dr.,

    1. State Key Laboratory for Physical Chemistry of Solid Surfaces & Department of Chemistry, Xiamen University
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  • Xiao-ru Wang Prof. Dr.

    1. Department of Chemistry and Key Laboratory of Analytical Sciences of the Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005 (China), Fax: (+86) 592-218-4530
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  • This work was financially supported by the National Science and Technology Development Project (863 Project No. 2006AA09Z160), the National Natural Scientific Foundation of China (Nos. 20775064, 20735002), and the Program for New Century Excellent Talents in University of China (NCET), which are gratefully acknowledged. We thank Prof. Kwok-yin Wong for providing oxygen sensor probes and Prof. John Hodgkiss for language polishing.

Abstract

original image

Seeing red: An optical sensor based on CdTe quantum dots (QDs) and [meso-tetrakis(pentafluorophenyl)porphyrinato]platinum(II) (PtF20TPP; λem,max=648 nm, red), achieves both colorimetric and quantitative determination of oxygen. The sensor strip is reversible in its response and can be reused.

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