Films for detecting fluoride
AssigneeThe Regents of the University of Michigan
InventorsMark E. Meyerhoff, Ibrahim H. A. Badr
Life of this patent
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Abstract
A film for detecting fluoride concentrations is disclosed. The film includes an organic matrix having a lipophilic aluminum compound incorporated therein. The lipophilic aluminum compound is adapted to selectively bind with fluoride ions via a binding interaction. The fluoride is detectable through optical or electrochemical detection of the binding interaction.
Claims24
A film for detecting fluoride, the film comprising:
- an organic matrix;
- and
- a lipophilic aluminum compound including an aluminum metal ion center incorporated within the organic matrix, the lipophilic aluminum compound adapted to selectively bind with fluoride ions via a binding interaction between the aluminum metal ion center and the fluoride ions, the fluoride being detectable through optical or electrochemical detection of the binding interaction, the lipophilic aluminum compound selected from the group consisting of aluminum(III)octaethylporphyrins, chloro-aluminum(III)Salen, aluminum(III)tetraryl porphyrins, aluminum(III)octaalkyl porphyrins, and aluminum(III)picket fence porphyrins.
A film for optically detecting fluoride, the film comprising:
- an organic matrix;
- a lipophilic aluminum compound including an aluminum metal ion center incorporated within the organic matrix, the lipophilic aluminum compound adapted to selectively bind with fluoride ions via a binding interaction between the aluminum metal ion center and the fluoride ions, the lipophilic aluminum compound selected from the group consisting of aluminum(III)octaethylporphyrins, chloro-aluminum(III)Salen, aluminum(III)tetraryl porphyrins, aluminum(III)octaalkyl porphyrins, and aluminum(III)picket fence porphyrins;
- and
- a lipophilic pH chromoionophore incorporated within the organic matrix, the chromoionophore adapted to transduce the binding interaction to an optical signal.
A method of making a sensor for optically detecting fluoride, the method comprising:
- incorporating a lipophilic aluminum compound including an aluminum metal ion center into an organic matrix, the lipophilic aluminum compound adapted to selectively bind with fluoride ions via a binding interaction between the aluminum metal ion center and the fluoride ions, and the fluoride being detectable through optical or electrochemical detection of the binding interaction, the lipophilic aluminum compound selected from the group consisting of aluminum(III)octaethylporphyrins, chloro-aluminum(III)Salen, aluminum(III)tetraryl porphyrins, aluminum(III)octaalkyl porphyrins, and aluminum(III)picket fence porphyrins;
- and
- dissolving the organic matrix having the aluminum compound therein in a solvent.
A sensor for detecting fluoride, the sensor comprising:
- an organic matrix;
- and
- a lipophilic aluminum compound including an aluminum metal ion center incorporated within the organic matrix, thereby forming a film, the lipophilic aluminum compound adapted to selectively bind with fluoride ions via a binding interaction between the aluminum metal ion center and the fluoride ions, the fluoride being detectable through optical or electrochemical detection of the binding interaction, the lipophilic aluminum compound selected from the group consisting of aluminum(III)octaethylporphyrins, chloro-aluminum(III)Salen, aluminum(III)tetraryl porphyrins, aluminum(III)octaalkyl porphyrins, and aluminum(III)picket fence porphyrins;
- wherein the film is adapted to be established on a substrate or between two aqueous phases.
Dependencies are inferred from the claim text.