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US 7,010,182 B2Granted
Biosensors having enhanced environmental sensitivity
AssigneeLuna Innovations Incorporated
InventorCharles D. Pennington
Life of this patent
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Abstract
A biosensor having enhanced sensitivity to physical or chemical parameters comprises a waveguide and a coating disposed on the waveguide. The coating has a refractive index that enhances the sensitivity of the biosensor to physical or chemical parameters. In a preferred embodiment, the coating comprises at least one dendrimer disposed on the waveguide, wherein the coating has a refractive index ranging from about 1.0 to about 1.5. A method for fabrication of the biosensor is also provided.
Claims13
A biosensor, comprising:
- a waveguide;
- and
- a coating, having refractive index ranging from about 1.0 to about 1.5, wherein the coating comprises at least one dendrimer disposed on the waveguide and wherein the refractive index of the coating enhances sensitivity of the biosensor.
A biosensor comprising a fiber optic waveguide having a long period grating disposed therein;
- and a coating having a refractive index of about 1.38 wherein the coating comprises a polyamidoamine dendrimer with carboxylate surface groups having a weight average molecular weight of about 436, wherein the coating is disposed on the fiber optic waveguide.
Dependencies are inferred from the claim text.