Selective fluorogenic and chromogenic probe for detection of silver ions and silver nanoparticles in aqueous media.
A novel rhodamine-based fluorogenic and chromogenic probe for Ag(+) ions in aqueous media is developed, which can be also used for the detection of AgNPs. The sensing mechanism is based on irreversible tandem ring-opening and -forming processes promoted by Ag(+)-coordination to the iodide of the probe, which is accompanied by both color and turn-on type fluorescence changes. The probe shows remarkably high selectivity over other metal ions and detects silver ions up to 14 ppb.
Chatterjee
Amrita
A
Department of Chemistry and the Center for Electro-Photo Behaviors in Advanced Molecular Systems, POSTECH, San 31, Hyoja-dong, Pohang, 790-784, Republic of Korea.
Santra
Mithun
M
Won
Nayoun
N
Kim
Sungjee
S
Kim
Jae Kyung
JK
Kim
Seung Bin
SB
Ahn
Kyo Han
KH
D002414:Cations, Monovalent; D005456:Fluorescent Dyes / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000032:analysis* / Q000737:chemistry; D012235:Rhodamines / Q000737:chemistry*; D012680:Sensitivity and Specificity; D012834:Silver / Q000032:analysis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods; D014867:Water / Q000737:chemistry*
D002414:Cations, Monovalent; D005456:Fluorescent Dyes; D012235:Rhodamines; D014867:Water; D012834:Silver; C029773:rhodamine B