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- W2140532586 abstract "Gold nanoclusters (AuNCs) protected by bovine serum albumin (BSA) can emit red photoluminescence under illumination by ultraviolet light. The luminescence of the BSA–AuNCs was quenched when Cu2+ chelated with glycine in the BSA chain and generated BSA–AuNCs–Cu2+, while the luminescence of the BSA–AuNCs restored when pyrophosphate ion (P2O74−, PPi) was added and chelated with Cu2+, resulting in Cu2+ being removed from the surface of BSA–AuNCs. Bearing this in mind, herein we present a novel BSA–AuNCs–Cu2+ fluorescent sensor for PPi detection. This environmentally-friendly, simple, rapid and selective fluorescent sensor possesses a wide linear range (0.16–78.1 μM) and a high sensitivity (the limit of detection (LD) is 0.083 μM), which could also determine PPi in the effluent of copper plating with the results consistent with those obtained by absorptiometry. Furthermore, the morphologies of BSA–AuNCs, BSA–AuNCs–Cu2+ and BSA–AuNCs–Cu2+-PPi were characterized by high resolution transmission electron microscopy (HRTEM). The mechanism of the proposed assay for PPi detection has been discussed." @default.
- W2140532586 created "2016-06-24" @default.
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- W2140532586 date "2013-01-01" @default.
- W2140532586 modified "2023-09-26" @default.
- W2140532586 title "BSA-protected gold nanoclusters as fluorescent sensor for selective and sensitive detection of pyrophosphate" @default.
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- W2140532586 doi "https://doi.org/10.1039/c3ay00054k" @default.
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