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Fluorescence signaling of Zn2+ levels in synthetic urine by dipicolylamine-armed hydroxynaphthalimide
- Issue Date
- Feb-2015
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Fluorescence signaling; Zn2+ levels; Synthetic urine; Fetal bovine serum; Dipicolylamine; Hydroxynaphthalimide
- Citation
- SENSORS AND ACTUATORS B-CHEMICAL, v.207, no.Part A, pp 303 - 307
- Pages
- 5
- Journal Title
- SENSORS AND ACTUATORS B-CHEMICAL
- Volume
- 207
- Number
- Part A
- Start Page
- 303
- End Page
- 307
- ISSN
- 0925-4005
0925-4005
- Abstract
- A novel Zn2+-selective fluorescent sensor based on dipicolylamine-armed hydroxynaphthalimide (DPA-NPI) was developed. DPA-NPI showed selective and sensitive fluorescence turn-on type signaling behavior toward Zn2+ ions. The detection of Zn2+ ions was not affected by the presence of commonly encountered physiologically relevant metal ions. Interference from Hg2+, Cd2+, and Cu2+ ions was observed but not critical, because they are present in trace amounts under physiological conditions. The complex formation was confirmed by H-1 NMR and mass measurements. The practical application of the sensor for determining Zn2+ levels in synthetic urine was possible with a detection limit of 2.7 x 10(-8)M. The signaling of Zn2+ ions in biological samples using fetal bovine serum was also tested. (C) 2014 Elsevier B.V. All rights reserved.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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