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• W2952069312 endingPage "117263" @default.
• W2952069312 startingPage "117263" @default.
• W2952069312 abstract "Chiral recognition of enantiomers is fundamentally important. In this work, an effective and simple chiral sensing strategy for discrimination of leucine (Leu) enantiomers was constructed. In this chiral sensing, cube-shaped gold nanoparticles (AuNCs) as colorimetric probes are used to recognize Leu enantiomers. L-Leu can induce rapidly the aggregation of AuNCs, leading to change of AuNCs solution from red to colorless, while D-Leu cannot induce the color change. This distinct color changes allow naked-eye to distinguish chiral isomers of Leu. The chiral sensing was applied to measure the enantiometric excess of L-Leu in the whole range (from −100% to 100%). This chiral analysis can be performed by naked eye or simple ultraviolet-visible spectrometer. In addition, the mechanism of chiral recognition has been studied with circular dichroism (CD) spectra, UV–vis absorption spectra and zeta potential. In this method, the chiral recognition is due to the intrinsic chirality of AuNCs, and the AuNCs don't need any chiral labeling or modification. This chiral sensing method is simple, cheap, rapid and easy to operate. Furthermore, this work provides one experimental evidence for intrinsic chirality of nanoparticles, and helps people understand the chirality of nanostructures." @default.
• W2952069312 created "2019-06-27" @default.
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• W2952069312 date "2019-12-01" @default.
• W2952069312 modified "2023-10-17" @default.
• W2952069312 title "Visual chiral recognition of D/L-leucine using cube-shaped gold nanoparticles as colorimetric probes" @default.
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• W2952069312 doi "https://doi.org/10.1016/j.saa.2019.117263" @default.
• W2952069312 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31247465" @default.
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