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| Number | Title | Issue Date |
| 8093065 | Microbead optical sensor with layered plasmon structure for enhanced detection of chemical groups by SERS An optical sensor and method for use with a visible-light laser excitation beam and a Raman spectroscopy detector, for detecting the presence chemical groups in an analyte applied to the sensor are disclosed. The sensor includes a substrate, a plasmon resonance mirr... | 01/10/2012 |
| 8071391 | Method and apparatus for detecting and quantifying a chemical substance employing an optical transmission property of metallic islands on a transparent substrate This invention seeks to provide methods and apparatus for analysis. Electromagnetic radiation is transmitted through a plurality of metallic islands on a transparent substrate. A resultant optical property of the plurality of metallic islands is measured. Thereafter... | 12/06/2011 |
| 7993933 | Cyanide and related species detection with metal surfaces An assay method and kit for detecting a chemical. The method and kit utilize a metal surface capable of surface enhanced Raman Scattering. The metal surface may be provided in the form of one or more nanoparticles, to increase the surface enhanced Raman Scattering c... | 08/09/2011 |
| 7879619 | Apparatus for detecting one or more substances and method of detecting a substance An apparatus for detecting one or more substances includes a radiation source emitting a beam of radiation and also includes a material capable of reflecting the beam of radiation with a first characteristic and capable of reflecting the beam of radiation with a sec... | 02/01/2011 |
| 7776610 | Cyanide and related species detection with metal surfaces An assay method and kit for detecting a chemical. The method and kit utilize a metal surface capable of surface enhanced Raman Scattering. The metal surface may be provided in the form of one or more nanoparticles, to increase the surface enhanced Raman Scattering c... | 08/17/2010 |
| 7776611 | Optical sensor using functionalized composite materials The invention relates to a method for sensing the presence of at least one analyte in a medium, comprising disposing in the medium a functionalized composite material such that the at least one analyte is absorbed by the functionalized composite material, the functi... | 08/17/2010 |
| 7608462 | Drying SPE cartridges A method for spectrometric investigation of a plurality of samples dissolved in a solvent comprises: (a) guiding a first solvent with a sample through an SPE cartridge for concentrating the sample in the cartridge; (b) positioning the cartridge in a carrier for a pl... | 10/27/2009 |
| 7527976 | Processes for testing a region for an analyte and a process for forming an electronic device A workpiece, including a substrate and overlying layer, can be exposed to a region, such as a process chamber, to test for the presence of an analyte. Detected fluorescence emission signals during TXRD due to the substrate are significantly reduced, allowing the ana... | 05/05/2009 |
| 7524681 | Rapid assay for biological substances using FTIR The present invention relates to a method for determining the condition of a biological fluid by recording the IR spectrum of a sample of the biological fluid. To this end, the biological fluid can be examined in its native form. The method of the invention is usabl... | 04/28/2009 |
| 7521254 | Quantitative measurements of concentration and solubility using Raman spectroscopy The present invention provides methods which allows for the determination of concentration or solubility in a multi-component system using Raman spectroscopy. The present invention circumvents the necessity of constructing a calibration curve in order to analyticall... | 04/21/2009 |
| 7442339 | Microfluidic apparatus, Raman spectroscopy systems, and methods for performing molecular reactions Disclosed herein are methods, apparatuses, and systems for performing nucleic acid sequencing reactions and molecular binding reactions in a microfluidic channel. The methods, apparatuses, and systems can include a restriction barrier to restrict movement of a parti... | 10/28/2008 |
| 7439070 | Waste material handling, sampling and metal content value calculation A bulk sample is fed with a liquid into a mixing tank (1) where it is stirred to form a dispersion. A proportion of the dispersion is recycled from the bottom of the tank through a line to the top of the tank so that at least the dispersion in the recycle loo... | 10/21/2008 |
| 7435600 | Infrared methods of measuring the extent of cure of a binder in fibrous products A method of measuring the extent of cure of a binder in a fibrous product is provided. The method comprises (a) providing a sample of a fibrous product, the fibrous product comprising fibers and a binder, (b) subjecting the sample to infrared spectroscopy to generat... | 10/14/2008 |
| 7433806 | Band model method for modeling atmospheric propagation at arbitrarily fine spectral resolution A radiative transport band model algorithm has been developed for prediction and analysis of high spectral resolution radiometric measurements. Atomic and molecular line center absorption is determined from finite spectral bin equivalent widths. A new mathematically... | 10/07/2008 |
| 7432108 | Computerized method and apparatus for analyzing amino acids A method for analyzing a plurality of amino acids in a fluid sample by a user is provided comprising the steps of introducing the sample into a buffer solution, passing the sample in the buffer solution through a separation column and setting a lithium ion concentra... | 10/07/2008 |
| 7425453 | Integrated circuit porphyrin-based optical Fabry-Perot chemical sensor A Fabry-Perot cavity has a pair of partially transmissive, partially reflective, surfaces. A first of the surfaces is flexibly suspended adjacent and parallel to a second of the surfaces. A gap exists between the surfaces. A variable electrostatic potential permits ... | 09/16/2008 |
| 7419636 | Vapor sensing instruments for ultra trace chemical detection A detector for detecting vapors emitted from analytes includes a housing, a pump and a sensing assembly. The housing has an inlet, an outlet and an enclosed sensing volume therebetween. The pump communicates with the housing for moving a carrier sequentially through... | 09/02/2008 |
| 7419830 | Plural reaction chamber catalytic testing device and method for its use in catalyst testing A catalytic testing device comprising a reaction block comprising a set of reaction chambers, each chamber comprising a fluid inlet and outlet connected to an outgoing fluid duct connected to analysis means, fluid ... | 09/02/2008 |
| 7399445 | Chemical sensor A sensor device is formed from a metal film having a plurality of openings, a sensor material positioned within each of the openings, a light source that emits light having a first wavelength, and a light detector that detects light emitted from the light source and... | 07/15/2008 |
| 7393692 | SERS method for rapid pharmacokinetic analysis of drugs in saliva The method and apparatus rapidly separate drugs and their metabolites from saliva and, in a continuous sequence of steps, rapidly detect, identify and quantify them through surface-enhanced Raman spectroscopy. ... | 07/01/2008 |
| 7393691 | SERS method and apparatus for rapid extraction and analysis of drugs in saliva The method and apparatus rapidly separate drugs and their metabolites from saliva and, in a continuous sequence of steps, rapidly detect, identify and quantify them through surface-enhanced Raman spectroscopy. ... | 07/01/2008 |
| 7387880 | Method for monitoring resting and activated platelets in unfixed blood samples The amount of platelet surface proteins in a sample may be measured by collecting a sample containing platelets into a collection tube containing a platelet stabilizing composition, labeling the platelet surface protein and detecting by cytometry. ... | 06/17/2008 |
| 7378283 | Reaction monitoring of chiral molecules using fourier transform infrared vibrational circular dichroism spectroscopy A method and apparatus to monitor the enantiomeric excess of chiral molecules participating in a chemical reaction. The method includes real time monitoring of the chemical reaction by obtaining a VCD spectra and an IR spectra of the chemical compounds in the reacti... | 05/27/2008 |
| 7374942 | Process and apparatus for the combinatorial production and testing of catalyst material libraries by using at least two analytical methods A process and apparatus for testing material libraries, in particular catalysts, by means of coupled use of at least two analytical methods, preferably IR thermography and mass spectrometry. Owing to the selected arrangement, the disadvantages of the two previously ... | 05/20/2008 |
| 7372562 | Dynamic random separation among nanoparticles for nano enhanced Raman spectroscopy (NERS) molecular sensing A system for performing nanostructure-enhanced Raman spectroscopy (NERS) includes a radiation source, a radiation detector configured to detect Raman scattered radiation scattered by an analyte, and a container configured to provide a sealed enclosure. The NERS syst... | 05/13/2008 |
| 7368294 | Method for optical detection of an adjoining of a material component to a sensor material with the aid of biological, chemical or physical interaction and device for carrying out said method (variants) Method for detecting biological or chemical components in liquid or gas is based on measuring changes of the sensor layer thickness due to binding reactions. A plate or a gap with two surfaces of a solid optical material is used as the sensor layer. The surfaces are... | 05/06/2008 |
| 7369242 | Cavity ring-down spectrometer for semiconductor processing An apparatus is provided for measuring a gas within a semiconductor thin film process. The apparatus includes an optical resonator disposed within an environment of the thin-film process, a tunable laser that excites the optical resonator at a characteristic frequen... | 05/06/2008 |
| 7368292 | Differential reflection spectroscopy system and method for detecting explosives and other target materials A system and method for identifying explosive or other target materials includes the steps of irradiating a first location and a second location spaced apart from the first location from a sample suspected of including explosives with ultraviolet, visible or infrare... | 05/06/2008 |
| 7364697 | System for infrared spectroscopic imaging of libraries Methods and apparatus for screening diverse arrays of materials using infrared imaging techniques are provided. Typically, each of the individual materials on the array will be screened or interrogated for the same material characteristic. Once screened, the individ... | 04/29/2008 |
| 7359805 | Methods and systems for classifying mass spectra Methods and systems are disclosed for classifying mass spectra to discriminate the absence or existence of a condition. The mass spectra may include raw mass spectrum intensity signals or may include intensity signals that have been preprocessed. The method and syst... | 04/15/2008 |
| 7359804 | System and method for calibrating remote emissions sensing instruments A system and method is provided for obtaining calibration curves for CO and CO2 during laboratory calibration of one or more remote emissions sensing (RES) instruments, and for self-calibration of on-road RES instruments to compensate for changes in backg... | 04/15/2008 |
| 7351588 | Optical sensor with layered plasmon structure for enhanced detection of chemical groups by SERS An optical sensor and method for use with a visible-light laser excitation beam and a Raman spectroscopy detector, for detecting the presence chemical groups in an analyte applied to the sensor are disclosed. The sensor includes a substrate, a plasmon resonance mirr... | 04/01/2008 |
| 7348181 | Self-encoding sensor with microspheres A microsphere-based analytic chemistry system is disclosed in which self-encoding microspheres having distinct characteristic optical response signatures to specific target analytes may be mixed together while the ability is retained to identify the sensor type and ... | 03/25/2008 |
| 7342479 | Sensor device utilizing carbon nanotubes Chemical sensors for detecting analytes in a fluid is disclosed. The chemical sensors include chemically sensitive resistors that utilize carbon nanotubes as a chemically sensitive element. The disclosed sensors additionally utilize polymers which selectively alter ... | 03/11/2008 |
| 7339666 | Light-amplifying structures and methods for surface-enhanced Raman spectroscopy Structures for amplifying light include a resonant cavity in which an analyte may be positioned. The structures for amplifying light may be used to amplify the incident light employed in surface enhanced Raman spectroscopy (SERS). SERS systems employing the structur... | 03/04/2008 |
| 7333197 | Raman detection based flow cytometer A method and apparatus for enabling chemical identification of individual particles, cells of molecules by obtaining a Raman spectrum of a particle, cell or molecule as it flows past a sensing point in a flow cytometer. The particles, which may be cells or molecules... | 02/19/2008 |
| 7329547 | FT-NIR fatty acid determination method A method for the rapid analysis of the fatty acid components present in a fat and/or oil-containing material is provided wherein the levels and types of fatty acids present in a sample are determined using Fourier Transform Near Infrared (FT-NIR) spectroscopy. The F... | 02/12/2008 |
| 7326576 | Raman spectroscopic monitoring of hemodialysis Spectroscopic systems and methods are disclosed for determining levels of at least one analyte in blood undergoing hemodialysis. In one aspect, the invention employs Raman spectroscopy to monitor and/or control hemodialysis. In one embodiment, the system uses a lase... | 02/05/2008 |
| 7304311 | Whole printing medium evaluation method and device A method and device for evaluating a printing medium for use in a printing process, in which a set of spectral data is generated from a sample of the printing medium, and the set of spectral data is analysed. The analysis of the set of spectral data comprises detect... | 12/04/2007 |
| 7300799 | Method to assess organoclay exfoliation and orientation in organoclay/polymer composites A method for determining degree of organoclay delamination and degree of layer alignment in a polymer organoclay nanocomposite comprising one or more infrared light spectral measurements selected from the group consisting of (A) Si—O absorption bandwidth, (B) Siâ€... | 11/27/2007 |
