Patent classifications
G01N2021/6476
DEVICE FOR MONITORING THE SPATIAL AND TEMPORAL DYNAMICS OF THROMBIN
The device for monitoring the spatial and temporal dynamics of thrombin that includes a temperature-controlled sealed chamber with a transparent window and a light trap, said chamber being filled with a fluid medium and designed to be capable of accommodating a cuvette containing a test sample of blood plasma, and into which a coagulation activating insert is placed, the latter having a substance which initiates the coagulation process applied to the butt end thereof, at least one means of illumination of the sample designed to be capable of receiving the light scattering signal from the sample and at least one first means of irradiation designed to be capable of exciting the fluorescence signal of a special marker that forms in the sample during the cleavage of a fluorogenic substrate previously added to the sample by one of the proteolytic enzymes of the coagulation system, a means of optical photo/video registration of light scattering/irradiation from the sample, a means for adjustment of pressure in the temperature-controlled sealed chamber designed to be capable of maintaining a pressure inside the chamber exceeding the atmospheric one, at that the device includes at least one second means of irradiation of the sample designed to be capable of exciting a fluorescence signal of the said marker, at least one first means of irradiation that provides irradiation of the sample in a direction perpendicular to the cuvette plane, and at least one second means of irradiation that provides irradiation of the sample at an angle to the cuvette plane.
Devices and methods for imaging microarray chips
A microarray chip imaging detector comprises a housing configured to receive a microarray chip. The detector includes a laser assembly supported by the housing and oriented at an angle relative to the microarray chip, the laser assembly configured to transmit an excitation beam along a first axis to samples on the microarray chip. The detector also includes a camera supported by the housing and positioned along a second axis, the camera configured to receive fluorescent light emitted from fluorophores in the samples on the microarray chip, the second axis oriented at an angle less than 30 degrees relative to the first axis. The housing includes a plurality of baffles positioned between the microarray chip and the camera, and a plurality of laser beamstops to receive the excitation beam reflected off the microarray chip.
Compact multi-UV-LED probe system and methods of use thereof
The present invention provides a multi UV-LED probe system for detection of a characteristic of a sample, the system including a device comprising a probe head, the probe head including a plurality of UV-LEDs, an optic fiber bundle, an optional heating surface, an optional cooling surface and a light directing means adapted to transfer UV from the plurality of UV-LEDs to a region of the sample and further adapted to receive fluorescent light from the region to focus it into the optic fiber bundle and a power source adapted to provide electrical energy to the plurality of UV-LEDs, a spectrophotometer configured to receive the fluorescent light from the optic fiber bundle and a processor adapted to receive signals associated with the fluorescent light and to process the signals to provide the detection of the characteristic of the sample.
COMBINED FLUORESCENCE AND ABSORPTION DETECTOR FOR ON-COLUMN DETECTION AFTER CAPILLARY SEPARATION TECHNIQUES
A system and method for performing UV LED-based absorption detection for capillary liquid chromatography for detecting and quantifying compounds in a liquid, wherein a simplified system eliminates the need for a beam splitter and a reference cell by using a stable UV source, and power requirements are reduced, resulting in a portable and substantially smaller system with relatively low detection limits.
Compact Multi-UV-LED Probe System and Methods of Use Thereof
The present invention provides a multi UV-LED probe system for detection of a characteristic of a sample, the system including a device comprising a probe head, the probe head including a plurality of UV-LEDs, an optic fiber bundle, an optional heating surface, an optional cooling surface and a light directing means adapted to transfer UV from the plurality of UV-LEDs to a region of the sample and further adapted to receive fluorescent light from the region to focus it into the optic fiber bundle and a power source adapted to provide electrical energy to the plurality of UV-LEDs, a spectrophotometer configured to receive the fluorescent light from the optic fiber bundle and a processor adapted to receive signals associated with the fluorescent light and to process the signals to provide the detection of the characteristic of the sample.
FUEL QUALITY MONITORING SYSTEMS
A fuel system includes a fuel line configured to allow a fuel to flow therethrough and a fluoroscopy device attached to the fuel line such that the fluoroscopy device can input excitation radiation into the fuel line and receive fluorescent radiation emitted from the fuel in the fuel line.
Fluorescence hyperspectral microscopy system featuring structured illumination and parallel recording comprising a frequency-dividing reflection element
A fluorescence hyperspectral microscopy system featuring structured illumination and parallel recording includes a light projection sub-system, a detection sub-system, and an electrical controller. The light projection sub-system includes a digital light processing (DLP) module for generating linear excitation light, a first lens set, an optical path allocation element, and an objective lens. The detection sub-system includes a second lens set, a frequency-dividing reflection element, a two-dimensional light detector, and a light collection element. With the detection sub-system performing detection in conjunction with the light projection sub-system, and the electrical controller controlling the DLP module, a two-dimensional moving platform, and the two-dimensional light detector, the fluorescence hyperspectral microscopy system provides increased resolution and can obtain accurate information in spatial and spectral dimensions and hence a four-dimensional hyperspectral image of the object under detection.
Biological assay sample analyzer
A sample analyzer has an illuminator for illuminating an assay sample to cause luminescence, and a support for a sample vessel containing the assay sample. The support is adapted to position the assay sample proximate the illuminator. A detector is positioned along an optical axis extending from the illuminator, through the positioned assay sample, to the detector, so as to detect the luminescence from the assay sample. A reflector is removably disposed between the illuminator and the assay sample so as to reflect a portion of the luminescence back through the positioned assay sample toward the detector.
Water quality analysis system, sensor module, calibration machine, and method for calibrating water quality analysis system
A water quality analysis system is calibrated without using any organic fluorescence material such as phenanthrene. The water quality analysis system analyzes a component to be measured contained in a liquid sample by a fluorescence spectroscopy, and that comprises a light irradiation section that irradiates the liquid sample with a light having an excitation wavelength of the component to be measured, a light detection section that detects a fluorescence of the component to be measured emitted from the liquid sample, a calculation unit that calculates a concentration of the component to be measured by using a fluorescence intensity obtained by the light detection section, and a solid fluorescence reference member that is arranged on an optical path between the light irradiation section and the light detection section and that emits the fluorescence by the light from the light irradiation section at a time of calibration.