Photoluminescent semiconductor materials
First Claim
Patent Images
1. A sensor composition for detecting a target analyte comprising:
- at least one porous semiconductor material modified with at least one recognition element, wherein the pore structure of said porous semiconductor material is substantially free of retaining pores, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm.
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Abstract
Semiconductor materials having a porous texture are modified with a recognition element and produce a photoluminescent response on exposure to electromagnetic radiation. The recognition elements, which can be selected from biomolecular, organic and inorganic moieties, interact with a target analyte to produce a modulated photoluminescent response, as compared with that of semiconductor materials modified with a recognition element only.
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Citations
34 Claims
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1. A sensor composition for detecting a target analyte comprising:
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at least one porous semiconductor material modified with at least one recognition element, wherein the pore structure of said porous semiconductor material is substantially free of retaining pores, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm. - View Dependent Claims (3, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21)
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2. A sensor composition for detecting a target analyte comprising:
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at least one porous semiconductor material modified with at least one recognition element, wherein said porous semiconductor material has a surface area of up to about 11 times the surface area of a corresponding non-porous semiconductor material, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm.
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4. A sensor composition for detecting a target analyte comprising:
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at least one semiconductor material modified with at least one recognition element, wherein the surface of said semiconductor material comprises substantially irregular structural features, wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm.
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5. A sensor composition for detecting a target analyte comprising:
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at least one porous semiconductor material modified with at least one recognition element, wherein the pores of said porous semiconductor material are distributed in a substantially irregular fashion, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm.
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6. A sensor composition for detecting a target analyte comprising:
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at least one porous semiconductor material modified with at least one recognition element, wherein said porous semiconductor material has a three dimensional shape that is not a film or a wafer, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm. - View Dependent Claims (33, 34)
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7. A sensor composition for detecting a target analyte comprising:
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at least one porous semiconductor material modified with at least one recognition element, wherein said porous semiconductor material has a particulate structure, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm.
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8. A sensor composition for detecting a target analyte comprising:
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a core material having a coating of at least one layer of a porous semiconductor material modified with at least one recognition element, wherein said porous semiconductor material has a particulate structure, and wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm. - View Dependent Claims (20)
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22. A sensor composition comprising:
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at least one porous semiconductor material modified with at least one recognition element, and an organism bound to said recognition element, wherein when said composition is irradiated with at least one wavelength of electromagnetic radiation in the range of from about 100 nm to about 1000 nm, said composition produces at least one first luminescent response in the range of from about 200 nm to about 800 nm. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification