Photoinduced holes transfer based visual determination of dopamine in human serum
作者： S. Kanagasubbulakshmi , K. Kadirvelu
DOI: 10.1016/J.SAA.2018.08.050
关键词:
摘要: Abstract A simple unexplored strategy was followed to construct ratiometric fluorescence-based sensing system for the detection of dopamine (DA) in human serum. Ratiometric fluorescence constructed through bonding energy transfer (TBET) by conjugating carboxyl functionalized CdTe quantum dots (QDs) and amine-capped Carbon (CQDs). The photophysical properties were characterized standard methods. Photoluminescence (PL) under excitonic wavelength (350 nm) depends on dual emission at 440 595 nm that corresponds CQDs QDs respectively. developed utilized visual determination DA, an unquenched blue reveals color differentiation DA binding with among possible interferences (Alanine, Glycine, Glucose, Sucrose, Urea Ascorbic acid). limit (LOD) quantification (LOQ) calculated as 8.1 27.2 nm respectively using regression analysis. Photoinduced holes (PHT) might have attributed mechanism quench photoluminescence sequentially enhance performance QDs. matrix reliability platform evaluated testing spiked serum response found be field deployable.
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