Abstract:
Plasmonic condensers for generating surface plasmon at an evanescent wave surface can include a substrate layer, a metal layer comprising the evanescent wave surface; and a media layer disposed between the metal layer and the substrate layer. The media layer can be active or passive and can include a source of radiation that interacts with the metal layer to create surface plasmons that are not substantially optically detectable as far field radiation until an interfering object is brought into proximity with the evanescent wave surface. When an interfering object such as a sample or specimen is brought into proximity with the evanescent wave surface, it causes coupling of at least some of the surface plasmons into propagating radiation detectable by an objective lens. Systems, methods, and the like are disclosed, as are features of a plasmonic meta-materials illuminator.
Abstract:
An illumination device for an optical device, a microscope or a macroscope includes a first illumination source configured to emit light which is directed via an illumination beam path onto an object to be illuminated that is arranged in an object plane. At least one second illumination source is positionable in the illumination beam path, and is transparent or semitransparent as well as self-luminous. The at least one second illumination source is configured to allow light emitted from the first illumination source to pass through at least in part. The object plane having the object to be illuminated is configured to be illuminated both by the first and by the at least one second illumination source.
Abstract:
An apparatus and method are provided for differentiating multiple detectable signals by excitation wavelength. The apparatus can include a light source that can emit respective excitation light wavelengths or wavelength ranges towards a sample in a sample retaining region, for example, in a well. The sample can contain two or more detectable markers, for example, fluorescent dyes, each of which can be capable of generating increased detectable emissions when excited in the presence of a target component. The detectable markers can have excitation wavelength ranges and/or emission wavelength ranges that overlap with the ranges of the other detectable markers. A detector can be arranged for detecting an emission wavelength or wavelength range emitted from a first marker within the overlapping wavelength range of at least one of the other markers.
Abstract:
Device to detect at least an analyte, comprising a transparent substrate (2), having a first surface (3) with which a light source (7) is associated, and a second surface (4) on which a plurality of biological protein probes (12) are disposed, a layer (6) of polymer being interposed between said second surface (4) and said biological protein probes (12). A marker (fluorophore) is associated with said analyte, having determinate characteristics of fluorescence and/or phosphorescence correlated to the emission wavelength of the light source (7). Said light source (7) is suitable to emit a light radiation in a range of wavelengths equal to 400-550 nm, inside which range the absorption peak of said marker (fluorophore) used is comprised. The value of the distance (“s”) between the wavelength corresponding to the absorption peak of the marker (fluorophore) and the wavelength corresponding to the emission peak of fluorescence (phosphorescence) is comprised between 25 and 150 nm.
Abstract:
An instrument is provided that can monitor nucleic acid sequence amplification reactions, for example, PCR amplification of DNA and DNA fragments. The instrument includes a multi-notch filter disposed along one or both of an excitation beam path and an emission beam path. Methods are also provided for monitoring nucleic acid sequence amplifications using an instrument that includes a multi-notch filter disposed along a beam path.
Abstract:
An integrated test element (110) is proposed for detecting for detecting at least one analyte in a sample (142), in particular in a liquid sample (142). The integrated test element (110) has a carrier element (112), with an application face (114) on which at least one organic electroluminescent component (126) is applied. Furthermore, at least one indicator substance (136) is applied on the application face (114), which indicator substance (136) alters at least one optical characteristic, in particular an emission characteristic (e.g. a fluorescence characteristic), when it comes into contact with the at least one analyte. Furthermore, the integrated test element (110) has at least one photodetector element (116).
Abstract:
Apparatus and methods for detecting analytes in a sample are provided. The apparatus can include: one or more channels having a detection zone; one or more irradiation sources disposed for irradiating the detection zone with radiation; a detector capable of collecting at least one charge corresponding to an emission beam emitted from the detection zone, the detector having an output; and a time delay integration system coupled to the detector for effecting time delay integration of the at least one charge by accumulating the at least one charge before reading the at least one charge at the output of the detector. Various embodiments provide an apparatus with a multi-notch filter. Various embodiments provide a solid state laser, a micro-wire laser, or an organic light-emitting diode as a irradiation source.
Abstract:
Apparatus and methods for detecting analytes in a sample are provided. The apparatus can include: one or more channels having a detection zone; one or more irradiation sources disposed for irradiating the detection zone with radiation; a detector capable of collecting at least one charge corresponding to an emission beam emitted from the detection zone, the detector having an output; and a time delay integration system coupled to the detector for effecting time delay integration of the at least one charge by accumulating the at least one charge before reading the at least one charge at the output of the detector. Various embodiments provide an apparatus with a multi-notch filter. Various embodiments provide a solid state laser, a micro-wire laser, or an organic light-emitting diode as a irradiation source.
Abstract:
One embodiment of the present invention is a sensor for analyzing an analyte that includes: (a) an sensing element that is adapted to interface with the analyte; (b) an organic luminescent element that is adapted to excite surface plasmon resonance on the sensing element; and (c) a detector that is adapted to detect signals from the sensing element.