摘要:
The invention relates to an optical chip comprising at least one, preferably a plurality of, solid optical element(s), where the optical element comprises an upper planar detection surface to which a moiety for capturing and/or detecting an analyte may be linked. The invention further provides methods of using the optical chip.
摘要:
Various embodiments are directed to a fluorescence reader for assessing a fluorescence intensity of one or more substance samples. The fluorescence reader may comprise a sample support structure for accepting sample wells containing corresponding samples therein, an illumination structure positioned below the sample support structure and configured to illuminate one or more samples positioned within the sample wells, and an imaging structure positioned above the sample support structure and configured to detect a fluorescence emitted by the one or more samples. The illumination structure may comprise one or more reflective perimeter walls, together with the support structure, defining an enclosed illumination cavity, and one or more light sources positioned within the enclosed illumination cavity and configured to emit light causing the one or more samples to fluoresce.
摘要:
Microscope system for, and methods of, imaging a sample including biological cells. In an exemplary method, light transmitted through the sample may be detected for a first set of focal positions to collect a first stack of images. Values of a focus metric may be calculated for the first stack of images. A candidate focal position may be determined based on the values. Photoluminescence may be detected from the sample for a second set of focal positions to collect a second stack of images. The second set of focal positions may define a smaller range than the first set of focal positions. At least one focal position of the second set of focal positions may be based on the candidate focal position. In other words, the candidate focal position may serve as a guide for finding a suitable photoluminescence focal position.
摘要:
Disclosed herein is an apparatus (200, 500, 510, 520, 600, 700, 800, 900, 1000, 1100) comprising: a probe carrier (300, 310, 400, 410) comprising: a substrate (301, 401) comprising with holes (302, 402) through a thickness of the substrate (301, 401) and a transparent window (303) across an opening of each of the holes (302, 402), wherein the transparent window (303) closes the opening, wherein one or more locations on the transparent window (303) are configured to have probes (357, 457) attached thereto, wherein interaction between the probes (357, 457) and an analyte generates a signal; an optical system (285) comprising a plurality of collimators (295); a sensor (251) configured to detect the signal; wherein the collimators (295) can essentially prevent light from passing if a deviation of a propagation direction of the light from an optical axis of the collimators (295) is greater than a threshold. Because the probe carrier (300, 310, 400, 410) is separate and independent from the microarray (255), the probe carrier (300, 310, 400, 410) may be assembled with a pre-existing microarray (255) prior to its use, and be detached from the microarray (255) and disposed after its use.
摘要:
An optical imaging system with microlens array with integral structure includes a microlens array having a back surface for depositing sample material to be imaged and one or more microlenses on a front surface. At least one of the one or more microlenses are aligned to the deposited sample material. A plate is attached to the microlens array. A microscope objective is positioned proximate to the plurality of microlenses.
摘要:
The present disclosure provides apparatuses and methods for analyzing the presence of charged analytes and/or the binding force between charged analytes and a capture probe. The apparatuses and methods of the present disclosure can be operated in a multiplexed format to perform various assays of clinical significance for example.
摘要:
In one exemplary embodiment, a method (100) for calibrating an instrument is provided. The instrument includes an optical system capable of imaging florescence emission from a plurality of reaction sites. The method includes performing a region-of-interest (ROI) calibration (102) to determine reaction site positions in an image. The method further includes performing a pure dye calibration (108) to determine the contribution of a fluorescent dye used in each reaction site by comparing a raw spectrum of the fluorescent dye to a pure spectrum calibration data of the fluorescent dye. The method further includes performing an instrument normalization calibration (110) to determine a filter normalization factor. The method includes performing an RNase P validation (112) to validate the instrument is capable of distinguishing between two different quantities of sample.
摘要:
A computer-implemented method (500) for calibrating a fluorescent dye is described. The method (500) comprises imaging a sample holder, loaded into an instrument, at more than one channel. The sample holder comprises a plurality of reaction sites and more than one dye type, with each dye occupying more than one reaction site. The method further comprises identifying a peak channel for each dye on the sample holder (508), normalizing each channel to the peak channel for each dye (510), and producing a dye matrix (518) that comprises a set of dye reference values.
摘要:
An imaging device for bright field Fourier ptychographic imaging and fluorescence imaging comprises a first fluorescence illumination source configured to provide excitation light of a first range of wavelengths to a transparent well; an optical system having a pair of objectives positioned oppositely; and an image sensor configured to receive light propagated through the optical system from the transparent well. The image sensor is configured to acquire a sequence of uniquely illuminated intensity measurements of light passing through a sample in the well based on sequential illumination at different illumination angles from a variable illumination source, and further configured to acquire a first fluorescence image of the sample based on light emitted by the sample in response to excitation light of the first range of wavelengths.
摘要:
In one aspect an imaging system includes: an illumination system including an array of light sources; an optical system including one or more lens arrays, each of the lens arrays including an array of lenses, each of the lenses in each of the one or more lens arrays in alignment with a corresponding set of light sources of the array of light sources; an imaging system including an array of image sensors, each of the image sensors in alignment with a corresponding lens or set of lenses of the one or more lens arrays, each of the image sensors configured to acquire image data based on the light received from the corresponding lens or set of lenses; a plate receiver system capable of receiving a multi-well plate including an array of wells, the plate receiver system configured to align each of the wells with a corresponding one of the image sensors; and a controller configured to control the illumination of the light sources and the acquisition of image data by the image sensors, the controller further configured to perform: an image acquisition process including a plurality of scans, each scan associated with a unique pattern of illumination, each of the image sensors configured to generate an image for a respective one of the wells during each scan; and an image reconstruction process during which the controller performs a fourier ptychographic operation to generate a reconstructed image for each of the wells based on the image data captured for the respective well during each of the scans.