Fiber optic potassium ion sensor

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United States of America Patent

PATENT NO 5154890
SERIAL NO

07610289

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A sensor (10) is provided for detecting the concentration of potassium ions which comprises a molecule which selectively complexes potassium ions. The molecule, e.g., 2,2-bis(3,4-(15-crown-5)-2-nitrophenylcarbamoxymethyl)tetradecanol-14, has at least one binding site and is provided with a fluorophore group, e.g., Rhodamine-B, at that site. The molecule is one that expands upon complexation of potassium ions, such that the intensity of fluorescence increases. The change in fluorescent intensity is a direct measure of the concentration of potassium ions. A detector employing the sensor is also provided.

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Patent Owner(s)

Patent OwnerAddress
PELIKAN TECHNOLOGIES INC1072 EAST MEADOW CIRCLE PALO ALTO CA 94303

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mauze, Ganapati R Sunnyvale, CA 32 3102
Rupp, Lothar Aixheim, DE 6 80

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