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- W1552119718 abstract "The use of noble metal nanoparticles (NPs) as reductants in chemiluminescence (CL) has been reported only rarely owing to their high oxidation potentials. Interestingly, nucleophiles could dramatically lower the oxidation potential of Ag NPs, such that in the presence of nucleophiles Ag NPS could be used as reductants to induce the CL emission of luminol, an important CL reagent widely used in forensic analysis for the detection of trace amounts of blood. Although nucleophiles are indispensible in Ag NP-luminol CL, only inorganic nucleophiles such as Cl-, Br-, I- and S2O32- have been shown to be efficient. The effects of organic nucleophiles on CL remain unexplored. In this study, 20 standard amino acids were evaluated as novel organic nucleophiles in Ag NP-luminol CL. Histidine, lysine and arginine could initiate CL emission; the others could not. It is proposed that the different behaviors of 20 standard amino acids in the CL reactions derive from the interface chemistry between Ag NPs and these amino acids. UV/vis absorption spectra were studied to validate the interface chemistry. In addition, imidazole and histidine were chosen as a model pair to compare the behavior of the monodentate nucleophile with that of the corresponding multidentate nucleophile in Ag NP-luminol CL. Copyright © 2014 John Wiley & Sons, Ltd." @default.
- W1552119718 created "2016-06-24" @default.
- W1552119718 creator A5031315906 @default.
- W1552119718 creator A5078471796 @default.
- W1552119718 date "2014-05-08" @default.
- W1552119718 modified "2023-09-23" @default.
- W1552119718 title "Amino acids as novel nucleophiles for silver nanoparticle-luminol chemiluminescence" @default.
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- W1552119718 doi "https://doi.org/10.1002/bio.2670" @default.
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