Label-free evanescent-field detection of biological and chemical agents
First Claim
1. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part with a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument; and
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region, wherein said substrate having tensile strength and pliability can be supplied from a dispensing device as a single unit in a continuous fashion, and wherein said substrate being configurable to a fraction of its fully extended length along its longest dimension without breaking and can be retrieved from such configuration as a continuous body suitable for performing molecular interactive assays with the biological or chemical analytes to detect the biological pathogens, chemical agents, or other harmful or toxic species.
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Accused Products
Abstract
An evanescent-field sensor system and method of using the system to detect either liquid- or airborne biological pathogens, chemical agents, and other harmful or toxic species is provided. The sensor system involves 1) an evanescent-field sensor having a substrate surface with at least a partial bio- or chemo-responsive layer, which forms a part of a serially renewable sensing region; 2) an optical interrogation apparatus for monitoring the bio- or chemo-responsive layer; and 3) an air-fluid delivery system. The optical interrogation apparatus has a light source, an optical delivery system, and a detection instrument or device. The air-fluid delivery system includes either macro or micro-fluidic passages designed to convey biological or chemical analytes to a sensing region.
50 Citations
52 Claims
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1. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part with a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument; and
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region, wherein said substrate having tensile strength and pliability can be supplied from a dispensing device as a single unit in a continuous fashion, and wherein said substrate being configurable to a fraction of its fully extended length along its longest dimension without breaking and can be retrieved from such configuration as a continuous body suitable for performing molecular interactive assays with the biological or chemical analytes to detect the biological pathogens, chemical agents, or other harmful or toxic species. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part with a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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33. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region, wherein said substrate is in the form of a rotatable platform.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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34. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region
4) said bio- or chemo-responsive layer in said serially renewable sensing region is specifically formulated to react with particular biological or chemical analytes; and
5) said bio- or chemo-responsive layer includes a pathogen-specific ganglioside probe. - View Dependent Claims (35)
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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36. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
(4) said bio- or chemo-responsive layer has probes including glycolipids, gangliosides, or lipid biomembranes.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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37. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises:
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said substrate has immobilized antibodies against various different surface marker molecules of a particular pathogen. - View Dependent Claims (38)
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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39. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region, wherein said evanescent-field sensor has a waveguiding structure formed by an effective index waveguiding region covering the substrate, wherein the waveguiding region has a refractive index at least 0.1% higher than the refractive index of the substrate;
a diffraction grating contained in or near the waveguiding structure; and
the bio- or chemo-responsive layer covering the waveguiding region, wherein said bio- or chemo-responsive layer is capable of interacting with the biological pathogen, chemical agent, or other harmful or toxic species of interest.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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40. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said evanescent-field sensor has the substrate coated with multiple dielectric layers, having varying optical indices, in which an optical field has an evanescent tail extending beyond the layer immediately in contact with a medium to be sensed.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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41. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said evanescent-field sensor is a patterned optical circuit.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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42. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said evanescent-field sensor is an interferometer.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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43. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said evanescent-field sensor is a Mach-Zehnder interferometer.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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44. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
(4) the optical delivery system includes a diffraction grating, a prism, or a specifically tailored dielectric stack in order to couple in-coming and out-going optical probe beams to said evanescent-field sensor.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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45. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
(4) the optical delivery system utilizes optical fiber to either deliver or collect a light signal from said evanescent-field sensor. - View Dependent Claims (46)
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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47. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region;
4) said evanescent-field sensor has a continuous substrate having thereon at least two or more contiguous sets of sensor arrays, wherein each sensor array comprises a predetermined set of multiple regions for biological or chemical sensing; and
5) said contiguous sets of sensor arrays comprise families of toxin probes.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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48. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region;
4) said surface has reactant and non-reactant regions; and
5) said surface has contiguous set of arrays of toxin targets are repeating along the length of said substrate and each of said set of arrays of toxin targets is recognizably separated from one another. - View Dependent Claims (49, 50, 51)
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
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52. A sensor system for detecting biological pathogens, chemical agents, or other harmful or toxic species, the sensor system comprises;
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
2) an optical interrogation apparatus for monitoring at least a portion of said bio- or chemo-responsive layer, said optical interrogation apparatus comprising a light source, an optical delivery system, and a detection instrument;
3) an air-fluid delivery system, comprising either macro or micro-fluidic passages designed to deliver biological or chemical analytes to at least a portion of said serially renewable sensing region; and
4) said substrate has a length, width, and thickness compatible with commercial 35-mm photographic film technology.
- 1) an evanescent-field sensor comprising a substrate with a surface covered at least in-part a bio- or chemo-responsive layer which forms a serially renewable sensing region;
Specification