A turn-on fluorescent nanoprobe for lead-glutathione nanoparticles
The authors describe a method for ethanol induced formation of a fluorescent nanoprobe for sensitive fluorometric "turn-on" detection of Pb.sup.2+ based on aggregation-induced emission (AIE) of the Au(I)-glutathione (GSH) complex. On addition of Pb.sup.2+, their strong interaction with GSH...
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| Veröffentlicht in: | Mikrochimica acta (1966) 2017-10, Vol.184 (10), p.4209 |
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| container_issue | 10 |
| container_start_page | 4209 |
| container_title | Mikrochimica acta (1966) |
| container_volume | 184 |
| creator | Zhang, Hailiang Wang, Shuailiang Chen, Zhu Ge, Peng Jia, Ranran Xiao, Enhua Zeng, Wenbin |
| description | The authors describe a method for ethanol induced formation of a fluorescent nanoprobe for sensitive fluorometric "turn-on" detection of Pb.sup.2+ based on aggregation-induced emission (AIE) of the Au(I)-glutathione (GSH) complex. On addition of Pb.sup.2+, their strong interaction with GSH causes the Au(I)-SG complexes to come in close proximity, and this results in a turn-on fluorescence with a strong emission peaking at 595 nm. The findings were utilized to design a method for quantitation of Pb.sup.2+. Interestingly, sensitivity is largely enhanced in the presence of ethanol due to the formation of dense Au(I)-SG nanoparticles. The fraction of ethanol is optimized. Response to Pb.sup.2+ occurs within a few seconds. The assay covers the 2.0 to 350 [mu]M Pb(II) concentration range, has a 0.1 [mu]M limit of detection, and has a satisfactory selectivity over other environmental metal ions. |
| doi_str_mv | 10.1007/s00604-017-2406-x |
| format | Article |
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On addition of Pb.sup.2+, their strong interaction with GSH causes the Au(I)-SG complexes to come in close proximity, and this results in a turn-on fluorescence with a strong emission peaking at 595 nm. The findings were utilized to design a method for quantitation of Pb.sup.2+. Interestingly, sensitivity is largely enhanced in the presence of ethanol due to the formation of dense Au(I)-SG nanoparticles. The fraction of ethanol is optimized. Response to Pb.sup.2+ occurs within a few seconds. 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| ispartof | Mikrochimica acta (1966), 2017-10, Vol.184 (10), p.4209 |
| issn | 0026-3672 |
| language | eng |
| recordid | cdi_gale_infotracacademiconefile_A715059749 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Commercial printing industry Fluorescence Nanoparticles Printing industry |
| title | A turn-on fluorescent nanoprobe for lead-glutathione nanoparticles |
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