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• W4386897718 endingPage "109388" @default.
• W4386897718 startingPage "109388" @default.
• W4386897718 abstract "Bimetallic nanoclusters protected by proteins have gained significant attention in the sensing field due to their aggregation-induced emission (AIE) property. However, their applications may be restricted by the effects of temperature, pH, ethanol, and metal ions. Therefore, the development of self-assembling technology could increase the potential applications of these materials. In this study, positively charged silicon nanoparticles (SiNPs) were mixed with negatively charged bovine serum albumin-protected silver doped gold nanoclusters (BSA@AgAuNCs) through an electrostatic interaction. The resulting system exhibited dual emissions at 610 nm ((BSA@AgAuNCs) and 460 nm (SiNPs) when excited at 370 nm. The mixing of SiNPs led to an increase in the fluorescence emission of BSA@AgAuNCs due to an aggregation-induced emission (AIE) enhancement. However, the addition of histamine, which is positively charged at pH 5.5, caused the SiNPs to be triggered and adsorbed onto the surface of BSA@AgAuNCs, resulting in their disaggregation and a decrease in their fluorescence emission. Simultaneously, the blue fluorescence emission of SiNPs at 460 nm was not affected and remained unchanged. Under optimized conditions, the fluorescence response (F460/F610) showed a linear increase with the concentration of histamine in the range of 0.01–80 µM, with a detection limit (S/N = 3) of 3.0 nM. The probe demonstrated excellent sensitivity, selectivity, and reliability in quantifying histamine in complex matrices. The recoveries % values are in the range of 97–102% and 97.7–104.4% with RSD % in the range of 2.67–3.98% and 2.78–4.00% for human blood serum and canned tuna fish samples, respectively. This work presents new opportunities for the development of sensors based on self-assembling and dual emissive properties for (bio) sensing applications." @default.
• W4386897718 created "2023-09-21" @default.
• W4386897718 creator A5050480456 @default.
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• W4386897718 date "2023-12-01" @default.
• W4386897718 modified "2023-09-27" @default.
• W4386897718 title "Intrinsic self-calibration electrostatic-controlled ratiometric fluorescence assay of histamine in human serum and canned tuna fish samples" @default.
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• W4386897718 doi "https://doi.org/10.1016/j.microc.2023.109388" @default.
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