Rhodamine B hydrazide revisited: Chemodosimetric Hg2+-selective signaling behavior in aqueous environments
- Authors
- Kim, Kyoung Nam; Choi, Myung Gil; Noh, Jae Hyun; Ahn, Sangdoo; Chang, Suk-Kyu
- Issue Date
- Mar-2008
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- chemodosimeter; Hg2+-selectivity; rhodamine; fluorescence
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.29, no.3, pp 571 - 574
- Pages
- 4
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 29
- Number
- 3
- Start Page
- 571
- End Page
- 574
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23807
- DOI
- 10.5012/bkcs.2008.29.3.571
- ISSN
- 1229-5949
1229-5949
- Abstract
- The well-known Cu2+-selective chemodosimetric behavior of rhodamine B hydrazide was successfully switched to selectivity for Hg2+. The fluorescence signaling is remarkably selective toward Hg2+ ions compared to other common biologically and environmentally important metal ions, including Cu2+ ions. The detection limit was 0.2 mu M in an acetate-buffered aqueous 10% methanol solution at pH 5. The OFF-ON type of signaling is due to the selective Hg2+-induced hydrolysis of the lactam ring of the hydrazide as has been reported for the standard Cu2+-signaling process of the same compound. A simple change in medium resulted in clear switching of selective signaling from Cu2+ to Hg2+, which extends the applicability of the easily accessible hydrazide derivative.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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