期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 6, 页码 2040-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja807230c
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资金
- EPB Center [R11-2008-052-01001]
- Korea Health industry Development Institute [A05-0426-B20616-05NI-00010A]
- Korea Health Promotion Institute [A050426] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2008-0061955, 2005-005-J13102] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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.
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