Method and sensor for detecting a chemical substance using an optically anisotropic material
AssigneeFISO Technologies Inc.
InventorsEric Pinet, Gaetan Duplain
Life of this patent
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Abstract
A method and sensor for detecting a chemical substance in an analyte. An anisotropic material is subjected to the analyte. Light is passed through the anisotropic material and collected. A change of an optical anisotropy of the collected light is detected, the change being indicative of the chemical substance in the analyte.
Claims202
A method for detecting a chemical substance in an analyte, comprising steps of:
- subjecting an optically anisotropic material at least partially surrounded by absorbent particles to the analyte;
- passing light through the anisotropic material;
- collecting at least a portion of the passed light;
- and
- detecting a change in an optical anisotropy of the collected light, the change being indicative of the chemical substance in the analyte.
A sensor for detecting a chemical substance in an analyte, comprising:
- an optically anisotropic material at least partially surrounded by absorbent particles to be subjected to the analyte;
- a light supply passing light through the anisotropic material;
- a collector capturing at least a portion of the passed light;
- and
- a detector characterizing or quantifying a change in an optical anisotropy of the collected light, the change being indicative of the chemical substance in the analyte.
A method for detecting a chemical substance in an analyte, comprising steps of:
- subjecting an optically anisotropic material to the analyte;
- passing visible light through the anisotropic material;
- collecting at least a portion of the passed visible light;
- and
- detecting a change in a polarization state of the collected visible light, the change being indicative of the chemical substance in the analyte.
A sensor for detecting a chemical substance in an analyte, comprising:
- an optically anisotropic material to be subjected to the analyte;
- a light supply passing visible light through the anisotropic material;
- a collector capturing at least a portion of the passed visible light;
- and
- a detector characterizing or quantifying a change in a polarization state of the collected visible light, the change being indicative of the chemical substance in the analyte.
A method for detecting a chemical substance in an analyte, comprising steps of:
- subjecting an optically anisotropic material other than porous silicon to the analyte;
- passing light through the anisotropic material;
- collecting at least a portion of the passed light;
- and
- detecting a change in an optical anisotropy of the collected light, the change being indicative of the chemical substance in the analyte.
A sensor for detecting a chemical substance in an analyte, comprising:
- an optically anisotropic material other than porous silicon to be subjected to the analyte;
- a light supply passing light through the anisotropic material;
- a collector capturing at least a portion of the passed light;
- and
- a detector characterizing or quantifying a change in an optical anisotropy of the collected light, the change being indicative of the chemical substance in the analyte.
Dependencies are inferred from the claim text.