Optical pH sensor
First Claim
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1. An optical sensor comprising (a) a transparent support material, and (b) a copolymer comprising a water soluble portion conjugated to pyrenetrisulphonate wherein the copolymer has one end attached to the transparent support material.
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Abstract
A new stable and reversible planar pH fluorosensor is prepared by conjugating a pH sensitive fluorescent material to a water soluble polymer chain attached to a support.
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Citations
24 Claims
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1. An optical sensor comprising
(a) a transparent support material, and (b) a copolymer comprising a water soluble portion conjugated to pyrenetrisulphonate wherein the copolymer has one end attached to the transparent support material.
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9. A method of preparing an optical sensor comprising:
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(a) conjugating a pyrenetrisulphonyl chloride and a water soluble material to form a conjugate, and (b) copolymerizing the conjugate and an acrylamide wherein a copolymer is formed, and wherein one end of the copolymer is attached to support. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of determining the pH of a sample comprising:
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(a) providing an optical sensor foil comprising (i) a transparent support material, and (ii) a copolymer comprising a water soluble portion conjugated to a pyrenetrisulphonate wherein the copolymer has one end attached to the transparent support material, and (b) contacting the sample with the optical sensor foil, (c) obtaining the fluorescence intensity of the sensor foil in the sample, and (d) determining the pH of the sample from a fluorescence intensity ratio. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification