Colorimetric chemical sensor with enhanced color sensitivity
AssigneeChemeleon Inc.
InventorMin Hu
Life of this patent
Estimating the term…
Abstract
A colorimetric sensor for detecting an analyte of interest in a fluid sample includes a photonic structure comprising a first receptor, wherein the photonic structure may be configured such that, when an analyte contacts the first receptor within the photonic structure, a refractive property of the photonic structure changes thereby to cause a detectable color change in the photonic structure. The first receptor may comprise an optical absorber indicator, wherein a second receptor is part of a structure of the optical absorber indicator, such that, when the analyte contacts the second receptor, the analyte causes a photo-induced electron transfer to induce a color change of the optical absorber indicator.
Claims30
A colorimetric sensor for detecting an analyte of interest in a fluid sample, the colorimetric sensor comprising:
- a photonic structure comprising a first receptor, wherein the photonic structure is configured such that, when an analyte contacts the first receptor within the photonic structure, a refractive property of the photonic structure changes thereby to cause a detectable color change in the photonic structure,
- wherein the first receptor comprises an optical absorber indicator, wherein a second receptor is part of a structure of the optical absorber indicator, such that, when the analyte contacts the second receptor, the analyte causes a photo-induced electron transfer to induce a color change of the optical absorber indicator.
A method of manufacturing a colorimetric sensor, the method comprising:
- creating a photonic structure comprising a first receptor, wherein the photonic structure is configured such that, when an analyte contacts the first receptor within the photonic structure, a refractive property of the photonic structure changes thereby to cause a detectable color change in the photonic structure, wherein the first receptor comprises an optical absorber indicator, wherein a second receptor is part of a structure of the optical absorber indicator, such that, when the analyte contacts the second receptor, the analyte causes a photo-induced electron transfer to induce a color change of the optical absorber indicator.
Dependencies are inferred from the claim text.