Fluorescent chemosensors for metals based on dipyrrins

Details Fluorescent chemosensors for metals based on dipyrrins Fluorescent chemosensors for metals based on dipyrrins

2011-08-09

2011-08-09

Choi, Ling-Siu (Department: 1761)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C436S080000, C436S081000, C436S083000, C436S084000, C548S564000, C548S565000

Reexamination Certificate

active

07994311

ABSTRACT:
The present invention is a new class of fluorescent sensor with unprecedented sensitivity, selectivity and synthetic efficiency for the identification and qualitative and quantitative detection of transition metal ions. The chemosensing properties are based on an internal charge transfer mechanism or photo-induced electron transfer and are effective in vitro. The chemosensor comprises one or more electron donating dipyrrin functionalities linked to an electron withdrawing functionality. The chemosensor forms a stable transition metal complex through internal charge transfer between the electron donating functionality and the target transition metal, which results in measurable fluorescence. Specific examples for sensing zinc and copper ions are described.

REFERENCES:
patent: 2004/0254383 (2004-12-01), Yu et al.

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