Abstract:
Various embodiments of a light detection device and a method of using such device are disclosed. In one or more embodiments, the light detection device can include a housing including a top surface and a bottom surface, where the housing extends along a housing axis between the top surface and the bottom surface; and a support member connected to the housing and adapted to be selectively moved from a closed position to an open position. The support member is further adapted to maintain the light detection device in an upright position when the bottom surface and the support member are in contact with a working surface and the support member is in the open position.
Abstract:
The invention relates to a process for observing a plurality of samples (12), each sample (12) comprising: a chamber (30) comprising a wall (34) at least partly delimiting an internal space, - a set of organisms comprising a plurality of organisms (14), and - a culture medium (16), said culture medium (16) being contained in the internal space, the process comprising, for each sample (12), the steps of: - obtaining a first indicator representative of the amount of organisms (14) present in said sample (12) at a first instant, - obtaining a second indicator representative of the amount of organisms (14) present in said sample (12) at a second instant, - determining at least one characteristic relating to the set of organisms from the comparison of the first indicator and of the second indicator.
Abstract:
The invention relates to an optochemical sensor (1) comprising a measuring element (8), which can be excited by means of light of an excitation light source (3) and which is contact with a measurement medium, a measuring arrangement, comprising at least an excitation light source (3), and a detector (4), and a covering hood (7) that separates the measuring arrangement from the measuring element (8), wherein the excitation light source (3) and the detector (4) are fastened to a base plate (2) arranged parallel to the measuring element (8), wherein the covering hood (7), the excitation light source (3), and the detector (4) are separated from each other by at least part of the material thickness of the covering hood (7), and wherein light from the excitation light source (3) hits the measuring element (8) through an optical waveguide (6) at such an angle that fluorescent light emitted by the measuring element (8) hits the detector (4) perpendicularly.
Abstract:
The disclosure provides microstructured articles and methods useful for detecting an analyte in a sample. The articles include microwell arrays. The articles can be used with an optical system component in methods to detect or characterize an analyte.
Abstract:
The invention relates to an optical sensor device (100) for detecting target particles (1) at a contact surface (12) of a carrier (11), said sensor device comprising a light source (21, 22) for emitting an input light beam (Ll) into the carrier (11) such that it is totally internally reflected and partially scattered by target particles (1) at the contact surface (12) into an output light beam (L2). The sensor device further comprises an optical system (30) for directing said output light beam (L2) onto a light detector (50), wherein a filter (32) in the optical system (30) suppresses the components (L2d) of totally internally reflected light. The detector therefore primarily measures the fraction of scattered light (L2s).