Journal
JOURNAL OF FLUORESCENCE
Volume 26, Issue 1, Pages 155-161Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-015-1696-9
Keywords
Rhodamine; Fluorescence; Fe3+
Funding
- National Science Foundation of China [21572209]
- Program for New Century Excellent Talents in University [NCET-11-0950]
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A rhodamine-benzimidazole based chemosensor was designed and prepared for Fe3+ via opening of the spiro-ring to give fluorescent and colored species. L exhibited high selectivity and excellent sensitivity in both absorbance and fluorescence detection of Fe3+ in aqueous solution with comparatively wide pH range (5.8-7.4). The detection limit of this newly developed probe was shown to be up to 2.74 mu M. The reversibility establishes the potential of both probes as chemosensors for Fe3+ detection. Fluorescence imaging experiments of Fe3+ in living MGC803 cells demonstrated its value of practical applications in biological systems.
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