期刊
JOURNAL OF FLUORESCENCE
卷 24, 期 1, 页码 119-127出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-013-1275-x
关键词
Rhodamine B; Chemosensor; Cr3+; Aqueous solution; Cell imaging
资金
- National Science Foundation of China [20972143, 20972130]
- Program for New Century Excellent Talents in University [NCET-11-0950]
A novel colorimetric and off-on fluorescent chemosensor 2 was designed and synthesized, which showed reversible and highly selective and sensitive recognition toward Cr3+ over other examined metal ions in aqueous solution. Upon addition of Cr3+, the solution of chemosensor 2 resulted in a color change from colorless to obvious pink color, these significant changes in color could be used for naked-eye detection. Chemosensor 2 exhibited a stable response for Cr3+ in the range 0-10 mu M with a detection limit of 1 ppm. Furthermore, fluorescence imaging experiments of Cr3+ ions in living MGC803 cells demonstrated its value of practical applications in biological systems.
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