Journal of Industrial and Engineering Chemistry, Vol.21, 166-171, January, 2015
Electronic energy transfer from sol-gel matrix and CdSe/ZnS quantum dots to protoporphyrin IX (PpIX) and its application for PpIX detection
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Sol-gel matrix GA was produced by hydrolyzing and polymerizing amixture of GPTMS and APTMS. Sol-gel GA was used to entrap CdSe/ZnS quantum dots (QDs) to fabricate a QD-entrapped sol-gel membrane. The electronic energy transfer from the sol-gel GA membrane and QDs to protoporphyrin IX (PpIX) led to an increase in the energy absorption of PpIX. The QD-entrapped sol-gel membrane was used for quantification of PpIX in aqueous solution with a linear detection range of 1.50 mM, and the sensitivity increased by about 25-44%, relative to that of the QD probes.
Keywords:Electronic energy transfer;Protoporphyrin IX (PpIX);CdSe/ZnS quantum dots (QDs);Sol-gel matrix
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