Disclosed are devices, arrangements and methods for quantifying the concentration of an analyte present in bodily fluid, including: an assay pad having at least one chemical reagent capable of producing a detectable signal in the form of a reaction spot upon reaction with the analyte; a light source; a detector array; a processor; and a memory in communication with the processor, the memory comprising: (a) at least one value indicative of one or more of: (i) the level of hematocrit contained in the sample; (ii) the volume of the sample applied to the assay pad; or (iii) imperfections present in the reaction spot; and (b) at least one algorithm for calculating the concentration of the analyte contained in the sample.

Differing from conventional lateral flow immunoassay test strips, the present invention provides an immunoassay kit comprising a release strip and a reaction strip. When using this immunoassay kit to complete a competitive-type immunochromatographic test or a sandwich-type immunochromatographic test for a test sample, it needs to firstly put the release strip into the test sample for releasing a specific antibody (or antigen) conjugating with a marker into the test sample, so as to make the first antibody connect to a target object in the test sample; after that, the reaction strip is eventually put into the test sample after the release strip is removed out of the test sample. Therefore, the qualitative analysis result of the competitive/sandwich-type immunochromatographic test can be easily obtained by determining whether the test line shows the color reaction or not.

Paper microfluidic devices for the detection of bodily fluids are provided. Such devices can be used, for example, for detection of bodily fluids from or at crime scenes, including blood, saliva, semen, urine, feces, vaginal fluids, and perspiration. Detection can be performed using colorimetric reagents that react when placed in contact with the fluid of interest. A single device can be used to test for multiple bodily fluids at the same time.

The present disclosure relates to using color calibration to improve and increase the accuracy of interpreting color-sensitive results from test strips made of substrates like paper. This is accomplished via a diagnostic test unit including a substrate, at least one region on the substrate, a reagent placed within the region to react, and a series of color legends on the substrate. Different reagent samples may be placed on the separate regions of a substrate for testing. An imaging device is used to capture the reaction results. More precise readings can be obtained by comparing the reaction results to the color legends to determine the measured property of the analyte.

A system for detecting an analyte with a reagentless dry test strip includes a collector for collecting a blood sample from a user. The system additionally includes a mixer for receiving the collector and mixing the blood sample. The system additionally includes reagents, located in the mixer, for mixing with the blood sample. The system additionally includes a dry test strip for receiving the blood sample mixed with the reagents.

The present invention provides a method for manufacturing a microbial detection device, microbial detection method, microbial detection kit and microbial detection device. The manufacturing method includes following steps: defining a sampling portion and a reaction portion on a substrate. Fiber materials are disposed in the reaction portion and a surface of the reaction portion which contacts with the fiber materials comprises abundant hydroxyl groups. Reaction reagents are then added into the fiber materials. An acidic solution is applied to treat the fiber materials and the hydroxyl groups in the reaction portion. The present invention is advantageous for easy operation, safety, and rapid analysis.

A device is disclosed for conducting a non-invasive analysis of a bodily fluid to determine the presence and level of a certain constituent carried by the bodily fluid. An indicator formulation of the device changes color in response to exposure to the constituent to provide a visible indication of the presence and level of the constituent carried by the bodily fluid. A carrier substrate of the device is constructed of a material having voids providing a high void volume within the substrate. The device is made by applying a chromagen to the carrier substrate to create a chromagen-laden carrier member. Then, a selected reagent having a particular constituent-specific formulation is applied to the chromagen-laden member. The selected reagent then combines with the chromagen thereby establishing the indicator formulation within the carrier substrate in place for reception of a sample of the bodily fluid.

Methodology and apparatus for on-line UV monitoring of automated synthesis reactions. An apparatus includes a module with a fluidic cell the operational parameters of which remain substantially unchangeable not only during the process of monitoring but also in time between sequential processes. The module includes a separable housing structure containing a source of UV-light and an optical detector integrated with substantially temperature-insensitive fluidic cell. A portion of the cell is defined by a slot formed in a cell-chassis and complemented with inlet and outlet dimensioned to ensure that no air-bubble(s) and/or stagnating fluid is present in the cell during time when liquid reactants to-be-measured are delivered through the inlet into the cell. The method is configured to determine progression and completion of the reaction(s) and modification of reactions' times and repetitions of reaction(s) s in real time.

The invention is directed to a device for the detection of target molecules, comprising a transparent substrate provided with binding sites on one surface of the substrate, wherein the binding sites are capable of binding at least one target molecule at least one light source means for coupling light provided by the light source into the substrate, wherein at least a part of the light generates an evanescent field of light propagating along the surface provided with the binding sites, wherein the evanescent field of light is diffracted by target molecules bound to the binding sites, thereby creating a plurality of detection signals which are detected by at least one detector characterized in that the detection signals are space-filtered by at least one optical element located in the Fourier plane of the plane of the binding sites.

Methodology and apparatus for on-line UV monitoring of automated synthesis reactions. An apparatus includes a module with a fluidic cell the operational parameters of which remain substantially unchangeable not only during the process of monitoring but also in time between sequential processes. The module includes a separable housing structure containing a source of UV-light and an optical detector integrated with substantially temperature-insensitive fluidic cell. A portion of the cell is defined by a slot formed in a cell-chassis and complemented with inlet and outlet dimensioned to ensure that no air-bubble(s) and/or stagnating fluid is present in the cell during time when liquid reactants to-be-measured are delivered through the inlet into the cell. The method is configured to determine progression and completion of the reaction(s) and modification of reactions' times and repetitions of reaction(s)s in real time.