Ultraselective fluorescent sensing of Hg2+ through metal coordination-induced molecular aggregation.
A new type of fluorescent sensor has been developed from a perylene based molecule, N,N'-dideoxythymidine-3,4,9,10-perylene-tetracarboxylic diimide (TT-PTCDI); the strong, highly selective binding between the thymine ligand (T) and Hg2+ ion enables efficient sensing of mercury ions based on a fluorescence quenching mechanism, which is primarily caused by metal-coordination induced molecular aggregation.
Che
Yanke
Y
Department of Chemistry and Biochemistry, Southern Illinois University Carbondale, Carbondale, IL 62901, USA.
Yang
Xiaomei
X
Zang
Ling
L
D015224:Dideoxynucleosides / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D008024:Ligands; D008628:Mercury / Q000737:chemistry*; D008856:Microscopy, Fluorescence / Q000379:methods; D008956:Models, Chemical; D015394:Molecular Structure; D009941:Organomercury Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry*; D013941:Thymine / Q000737:chemistry
D015224:Dideoxynucleosides; D005456:Fluorescent Dyes; D008024:Ligands; C529139:N,N'-dideoxythymidine-3,4,9,10-perylene-tetracarboxylic acid diimide; D009941:Organomercury Compounds; D010569:Perylene; D008628:Mercury; D013941:Thymine