摘要:
An integrated fluorescence scanning system is provided. The integrated fluorescence scanner combines an embedded computer, light engine, microscope, and motion stage into a compact rack-mountable network appliance that allows for automation of fluorescence microscopy. In an embodiment, the integrated fluorescence scanner includes a solid-state light engine which can provide intense, pure, and stable light across the spectrum required for imaging of all fluorophores of interest. The embedded computer allows for autonomous operation, and network appliance features including synchronous multi-scanner operation and monitoring, multisite operation via a single control terminal, and calibration for inter and intra instrument consistency.
摘要:
Disclosed herein are multiwell plates suitable for spectrophotometry for low-volume liquid samples. For the multiwell plates, the bottom of at least one well has a layer of porous matrix disposed thereon, or is comprised of a layer of porous matrix. The layer of porous matrix permits a low-volume liquid sample to distribute evenly across the porous matrix. Also disclosed herein are methods of performing a photometric or spectrophotometric measurement on a liquid sample having a small volume, by using a multiwell plate comprising a layer of porous matrix.
摘要:
Apparatus and methods for analyzing single molecule and performing nucleic acid sequencing. An apparatus can include an assay chip that includes multiple pixels with sample wells configured to receive a sample, which, when excited, emits emission energy; at least one element for directing the emission energy in a particular direction; and a light path along which the emission energy travels from the sample well toward a sensor. The apparatus also includes an instrument that interfaces with the assay chip. The instrument includes an excitation light source for exciting the sample in each sample well; a plurality of sensors corresponding the sample wells. Each sensor may detect emission energy from a sample in a respective sample well. The instrument includes at least one optical element that directs the emission energy from each sample well towards a respective sensor of the plurality of sensors.
摘要:
The present invention relates to an optical system, and particularly to a compact optical system, for detecting fluorescent or luminescent signals of at least two samples. It is the object of the invention to provide a compact optical system, which allows the manufacture of a small, inexpensive and portable (handheld) real-time PCR system. The object for an optical system for detecting fluorescent or luminescent signals of at least two samples, comprising for each detection system a light source for generating excitation light, an excitation filter, whereby said excitation filter transmits the excitation light from the light source to a dichroic mirror, whereby said dichroic mirror reflects said excitation light transmitted by said excitation filter to a fluorophore in a sample and whereby the emitted light from each of the samples passes through the dichroic mirror and through an emission filter to a detector that detects said emitted light, is met by placing only one excitation filter in front of the at least two next to each other situated light sources, whereby said excitation filter transmits the excitation light beams of each light source to only one dichroic mirror, whereby said dichroic mirror reflects said excitation light beams transmitted by the excitation filter to the fluorophore in each sample and whereby the emitted light of each of the samples passes next to each other through the dichroic mirror and through only one shared emission filter to at least one detector.
摘要:
A microfluidic flow cell subassembly, which may be assembled into a flow cell having fluidic connections outside of the main substrate, is described for encapsulating a sample to allow for subsequent controlled delivery of reagents to the sample, such as multiplexed in situ biomarker staining and analysis. As configured, the subassembly comprises a substrate layer forms a flexible optically transparent lid which is capable of bending in either direction to alter the internal dimensions of the subassembly. Methods of use are also disclosed.
摘要:
The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light source allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.
摘要:
There is provided a microfluidic device comprising: a plurality of wells, each well comprising one opening to function as an inlet and an outlet for the well, wherein each opening is in fluid communication with a common fluidic channel, and wherein each opening is connected to the common fluidic channel via an isolation channel, and wherein the plurality of wells is arranged on the device in a radially symmetrical pattern. There is also provided a system and method comprising the device.
摘要:
Process and apparatus for the optimisation of DNA detection and comprising: charging a plurality of reaction vessels with reagents and primers suspected of being suitable for the particular sample, in various quantities; placing in each reaction vessel a sample of the target DNA; subjecting each vessel concurrently to PCR; simultaneously observing optically the whole PCR process in each reaction vessel.
摘要:
An integrated waveguide structure (100) comprises a substrate (104) and a waveguide layer on top thereof. The waveguide layer comprises an excitation waveguide (101) for transmitting excitation radiation to activate a fluorescent particle, an emission waveguide (102) configured for transmitting radiation emitted by the fluorescent particle and a particle radiation coupler (106) being a resonator element arranged for coupling radiation emitted by the fluorescent particle into the emission waveguide (102). The structure also comprises at least one sensing site (103) configured with respect to the at least one excitation waveguide (101) and emission waveguide (102) such that a fluorescent particle at the sensing site is activated by the excitation radiation transmitted via the at least one excitation waveguide (101) and radiation emitted by the fluorescent particle is coupled into the emission waveguide (102) by the particle radiation coupler (106).
摘要:
Die Erfindung betrifft ein Kalibriernormal (7) für eine Vorrichtung (1) zur bildlichen Darstellung biologischen Materials (6), das während der Untersuchung zumindest bereichsweise zur Lumineszenz angeregt wird. Die Vorrichtung (1) verfügt über eine Beleuchtungseinheit (2) mit einer Strahlungsquelle, durch die eine elektromagnetische Anregungsstrahlung (15) emittierbar ist. Ferner ist eine Aufnahme (3) vorgesehen, die sicherstellt, dass das auf einem Träger (5) angeordnete biologische Material (6) innerhalb eines Strahlengangs der Anregungsstrahlung (15) positioniert ist. Im Übrigen verfügt die Vorrichtung über zumindest eine Bilderzeugungseinheit (4), die vom biologischen Material (6) aufgrund der Anregung durch die Anregungsstrahlung (15) emittierte Lumineszenzstrahlung (16) empfängt und ein Bild zumindest der zur Lumineszenz angeregten Bereiche des biologischen Materials (6) erzeugt. Zur Kalibrierung verfügt die Vorrichtung über ein Kalibriernormal (7), das aufgrund der Anregung durch die Anregungsstrahlung (15) eine Kalibrationsstrahlung emittiert, die von der Bilderzeugungseinheit (4) aufgenommen und in einer Steuerung (18) unter Berücksichtigung der aufgenommenen Kalibrierstrahlung ein Kalibrationssignal generierbar ist. Die beschriebene technische Lösung zeichnet sich dadurch aus, dass das Kalibriernormal (7) ein Gehäuse (9) mit einem darin eingeschlossenen zur Lumineszenz anregbaren Stoff (12) aufweist und mit Hilfe eines Befestigungsmittels (19) fest mit der Beleuchtungseinheit (2) oder der Aufnahme (3) verbunden ist.