Produits et services

Computer software for the collection, analysis, and export of diagnostic data from foodborne pathogen detection systems; namely, computer software that receives, processes, and analyzes sensor data from pathogen detection equipment and exports test results to user-defined destinations; and computer software for integration with laboratory information management systems (LIMS), laboratory middleware, and data management systems

Produits et services

Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes, namely, liquid crystal display analyzers for measuring, testing and detecting contaminants, environmental pollutants, and pathogenic agents in liquids and foods, water testing instrumentation for monitoring and testing contamination

Produits et services

Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes, namely, liquid crystal display analyzers for measuring, testing and detecting contaminants, environmental pollutants, and pathogenic agents in liquids and foods, water testing instrumentation for monitoring and testing contamination

Produits et services

Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes, namely, liquid crystal display analyzers for measuring, testing and detecting contaminants, environmental pollutants, and pathogenic agents in liquids and foods, water testing instrumentation for monitoring and testing contamination

Abrégé

Chromonic azo dyes are particular types of chromonic molecules that are alignable homeotropically (aggregated molecules stacked perpendicularly to the surface) on different types of substrates, often without the need of any special surface treatment. This feature enables the optimization of a detection device with increased sensitivity based of the alignment distortion created by a biological immune complex.

Classes IPC  ?

• G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
• G01N 21/77 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique
• G01N 21/23 - Biréfringence

Abrégé

A novel detection system and method is presented, where a two-bead receptor method is used for capturing pathogens, with one type of bead being magnetic and having a size of 3 microns or smaller, and the other type being polymeric and having a size of 3 microns or larger. The first type is used to concentrate a pathogen; the latter is used to create a detectable signal. Fast sensitive detection is achieved by collecting the optical signal created by the distortion of a homeotropically aligned chromonic azo dye in the presence of captured pathogens.

Classes IPC  ?

• G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
• G01N 33/569 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet pour micro-organismes, p. ex. protozoaires, bactéries, virus
• G01N 21/21 - Propriétés affectant la polarisation
• G01N 21/59 - Transmissivité
• G01N 21/03 - Détails de structure des cuvettes
• G01N 21/23 - Biréfringence

Produits et services

Portable detection and identification instruments using light sources and light detectors for detecting and identifying chemical and biological substances not for medical purposes, namely, liquid crystal display analyzers for measuring, testing and detecting contaminants, environmental pollutants and pathogenic agents in liquids and foods; water testing instrumentation for monitoring and detecting contamination

Abrégé

A novel detection system and method is presented, where a two-bead receptor method is used for capturing pathogens, with one type of bead being magnetic and having a size of 3 microns or smaller, and the other type being polymeric and having a size of 3 microns or larger. The first type is used to concentrate a pathogen; the latter is used to create a detectable signal. Fast sensitive detection is achieved by collecting the optical signal created by the distortion of a homeotropically aligned chromonic azo dye in the presence of captured pathogens.

Classes IPC  ?

• G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
• G01N 33/569 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet pour micro-organismes, p. ex. protozoaires, bactéries, virus
• G01N 21/21 - Propriétés affectant la polarisation
• G01N 21/59 - Transmissivité
• G01N 21/03 - Détails de structure des cuvettes
• G01N 21/23 - Biréfringence

Abrégé

Chromonic azo dyes are particular types of chromonic molecules that are alignable homeotropically (aggregated molecules stack perpendicularly to the surface) on different types of substrates, often without the need of any special surface treatment. This feature enables the optimization of a detection device with increased sensitivity based of the alignment distortion created by a biological immune complex.

Classes IPC  ?

• G01N 33/543 - Tests immunologiquesTests faisant intervenir la formation de liaisons biospécifiquesMatériaux à cet effet avec un support insoluble pour l'immobilisation de composés immunochimiques
• G01N 21/77 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique
• G01N 21/23 - Biréfringence
• C12Q 1/04 - Détermination de la présence ou du type de micro-organismeEmploi de milieux sélectifs pour tester des antibiotiques ou des bactéricidesCompositions à cet effet contenant un indicateur chimique

Abrégé

A method of aligning liquid crystals in a cell includes the steps of optimizing the concentration of the liquid crystal in a carrier medium, transforming the liquid crystal into its isotropic phase; heating the cell to a temperature which is slightly lower than the temperature of the liquid crystal, filling the cell with the liquid crystal, rapidly cooling the filled cell to transform the liquid crystal into the nematic phase and rewarming the cell to a temperature approximately at the phase line separating the nematic phase from the mixed nematic nematic-isotropic phase. An improved alignment surface for forming the cell comprises an uncoated, rubbed surface to drive uniform alignment of the liquid crystals.

Classes IPC  ?

• G02F 1/1337 - Orientation des molécules des cristaux liquides induite par les caractéristiques de surface, p. ex. par des couches d'alignement
• G02F 1/1341 - Remplissage ou fermeture des cellules