Emergence of the selective ultra-sensing of Ag(I): Thiolactic acid as efficient capping agent for cadmium chalcogenide quantum dots in modulating photoluminescence and metal reception

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• 作者：Niharendu Mahapatra^aAuthor Vitae ; Abhijit Mandal^bAuthor Vitae ; Sudipta Panja^aAuthor Vitae ; Mintu Halder^a ; ^{mintu@chem.iitkgp.ernet.in} ; ^{mhchem@gmail.com}Author Vitae
• 关键词：Selective-ultrasensitive detection ; Ag(I) sensing ; Turn-off-photoluminescence ; Capping ligand ; TLA-CdTe quantum dots
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：240
• 期：Complete
• 页码：543-552
• 全文大小：2323 K
• 卷排序：240

文摘

Turn-off photoluminescence-based assay for selective and sensitive detection of Ag(I). Ultrasensitive LOD is found to be 50 nM/L and free from other metal interferences. Interesting role of TLA capping on PL and metal sensing selectivity of TLA-CdTe QDs. Pendent methyl of TLA effectively impedes secondary coordination of carboxyl oxygen.