Abstract:
PROBLEM TO BE SOLVED: To make it possible to obtain the quantity of light required for measurement and to enable high-precision measurement, even if a rotary body or the like is deformed due to a change in an environmental temperature or the like. SOLUTION: As an initializing processing which is performed before a μTAS chip holding a sample (blood) is set, a measuring chamber is heated to a preset temperature by a heating means 35. A rotational position where a light value of the light received at a light-receiving part 43 through an aperture part 23 reaches a threshold value or more is sought while a rotary body 25 is rotated by a minute amount, and the rotational position is stored as a measurement position. Next, the μTAS chip is set to a chip holding part 22, and a processing before measurement, which includes weighing of a sample liquid in the μTAS chip, mixing of the sample liquid and a reagent, delivering a measurement liquid to a measuring area or the like, is performed. Then the rotary body 25 is rotated to the measurement position, a light from a light source 41 is introduced into the measuring area of the μTAS chip through the aperture 23, the light passing through the measuring area is received by the light-receiving part 43, and thus absorbance of this measurement liquid is measured. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an implementation method of a fluorescence assay comprising the detection of any light which can be emitted by exposing well to excitation light. SOLUTION: In the implementation method of assay, a filter is united with (i) the main body including the well (which expose the well with an assay to be conducted in manner of positioning the filter on a photosensitive element and excitation light source) and (ii) at least a component selected from photosensitive elements (for applying the filter to at least a photosensitive plane on the surface of the photosensitive element), to detect any beam of light which can be emitted through the photosensitive element. Further a system suitable for the implementation of this method and its manufacturing method are obtained. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
Devices, systems, and methods for strain-specific identification and assessment of susceptibility of microorganisms based on the response of sensors in a colorimetric sensor array to metabolic products of the microorganism. An exemplary method includes culturing a sample containing microorganisms in a medium and in gaseous communication with a colorimetric sensor array. Sensors in the colorimetric sensor array are exposed to volatile organic compounds produced by the microorganism. The method then includes assessing a resistance of the microorganism to at least one substance. The resistance is assessed based on a response of the sensors in the colorimetric sensor array to the volatile organic compounds produced by the microorganism.
Abstract:
The present invention generally relates to the generation of tunable coloration and/or interference from, for example, surfaces, emulsion droplets and particles. Embodiments described herein may be useful for generation of tunable electromagnetic radiation such as coloration (e.g., iridescence, structural color) and/or interference patterns from, for example, surfaces (e.g., comprising a plurality of microdomes and/or microwells), emulsion droplets and/or particles. In some embodiments, the surfaces, interfaces, droplets, and/or particles produce visible color (e.g., structural color) without the need for dyes.
Abstract:
Provided herein is a stimulation and measurement device. The stimulation and measurement device includes a microwell plate having a top side, a bottom side, and at least one well extending from the top side towards the bottom side; a first assembly removably positioned on the top side of the microwell plate; a second assembly removably positioned on the bottom side of the microwell plate; and a microcontroller. The first assembly includes a first printed circuit board having at least one pair of stimulating light emitting diodes (LEDs) positioned thereon to align with one of the wells. The second assembly includes a second printed circuit board having at least one photodiode positioned thereon to align with one of the pairs of stimulating LEDs, and at least one excitation LED paired with each of the photodiodes. The microcontroller is configured to control the stimulating LED(s), the photodiode(s), and the excitation LED(s).
Abstract:
Systems for the monitoring of bacterial levels in samples, using spectral analysis of the light diffracted from a substrate with an ordered array of pores having diameters enabling the targets to enter them. The trapping pore array is cyclically illuminated by light of different wavelengths, and the light diffracted from the pore array is imaged by a 2-dimensional detector array, with one pixel, or a small group of pixels receiving light from each associated pore. The temporal sequence of frames provides a series of images, each from the reflection of a different wavelength. A time sequenced readout of the signal from the pixel or pixels associated with each pore region, provides a spectral plot of the reflected light from that pore region. Spectral analysis of the light intensity from this series of different wavelength enables the effective optical thickness (EOT) of each pore to be extracted.
Abstract:
The present describes a system and method for determining the concentration of tetrahydrocannabinol (THC) including a tray comprising a first analyte including an infusion of a solvent and cannabis, a light emitting element configured to illuminate the first analyte, a light receiving element configured to receive a first light transmitted through the first analyte, and a control circuit configured to calculate a concentration of tetrahydrocannabinol in the first analyte based at least in part on the first light.
Abstract:
A method for observing stem cells by an observation device 1 comprises, placing stem cells C in a petri dish 11, mounting the petri dish 11 on a waveguide 21 via water 13, emitting illumination light L1 into the waveguide 21 and emitting the illumination light L1 to the stem cells C in the petri dish 11 via the water 13, and detecting scattered light L2, the scattered light L2 being the illumination light L1 emitted to the stem cells C that is scattered by the stem cells C and has passed through the waveguide 21. Then, in the light image detected by means of the scattered light L2, a region that is markedly darker than other regions is identified as being in the state tending toward differentiation.