The present disclosure relates to a process and a system for assessing the performance of cleaning operations by utilizing an automatic read out routine for test strips subjected to a cleaning operation. Furthermore, the present disclosure relates to a computer program product capable of performing the process.

Some embodiments are directed to a portable electronic device for analyzing an analyte. The portable electronic device includes a housing, an adapter detachably coupled to the housing and a processor disposed in the housing. The adapter includes a body defining an opening for receiving a test strip and an interface port disposed within the body. The interface port is configured to read a signal from the test strip. The processor is communicably coupled to the interface port. The processor is configured to determine at least one parameter of the analyte based on the signal received from the interface port.

The problem of detecting whether a urine sample is true human urine or a counterfeit urine product is solved by the use of reagent systems that detect two markers normally present in human urine. The markers acid phosphatase and alkaline phosphatase catalyze the substrates thymolphthalein monophosphate and p-nitrophenol phosphate, respectively. These substrates are formulated as spot tests on a dip stick or as reagents for use in automated chemical analyzers. The presence of the markers can be qualitatively detected by color-changes in the sample, formed by the pH-specific chromogens that result from catalysis of the substrates with the markers. The control reagent can further indicate whether a counterfeit urine product contains one or both of the chromogens.

Methods and systems for colorimetrically analyzing a liquid medium by analyzing chemical test strip images are provided. The liquid medium can be industrial water in an industrial water system. Image analyzing software carries out the analysis. The results of the analysis can be used to diagnosing a chemical treatment regimen of the industrial water system. A chemical test strip holder can be used to enhance reliability and repeatability of the imaging process and/or subsequent analysis.

Systems and methods for detecting determining a volume of urine in an absorbent article such as a diaper. A diaper loading application obtains a first measurement of ambient light received from a photodetector while a light source is off and a second measurement from the photodetector while the light source is transmitting light on an absorbent article. The application determines a normalized measurement of light reflected from an absorbent article by removing an ambient light signal from the second measurement based on the first measurement. The application determines, from the normalized measurement, a presence of urine in the absorbent article. The application further determines an estimated volume of urine in the absorbent article, wherein the determining is based on an elapsed time since the presence of urine and an activity state of an infant wearing the absorbent article.

A test strip fixation device for use in a method of determining analyte concentration in a body fluid using a mobile device with a camera. The device has top and bottom surfaces, has an essentially planar shape, and also has a cut-out portion configured for application of a body fluid sample. The top surface has color reference fields with known reference color values, including grey and non-grey reference fields. The grey reference fields are symmetrically arranged around the cut-out portion and around at least some of the non-grey color reference fields. The top surface also has position detection code elements. The bottom surface has a connector configured for detachable connection of an optical test strip relative to the test strip fixation device, and a reagent test region of the test strip can be aligned with the cut-out portion. A method of using the device is also disclosed.

A fluid retainer cartridge assembly is disclosed. The fluid retainer cartridge assembly includes a base portion and a cap portion. The base portion defines a plurality of implement-receiving channels. The cap portion is removably-connected to the base portion. The cap portion defines a fluid-receiving void that is fluidly-divided into an upstream fluid-receiving void and a downstream fluid-receiving void by a flange of the base portion that is disposed within the fluid-receiving void of the cap portion. The upstream fluid-receiving void is in fluid communication with the downstream fluid-receiving void by a fluid-flow passage formed by the flange of the base portion. A method is also disclosed.

A method for measuring blood glucose levels by a portable terminal using a strip module is provided. The strip module includes a dye pad having a color that changes in response to a sample applied to the dye pad. The strip module also includes a transparent strip having a first side and a second side. The first side is opposite the second side. The dye pad is mounted on the first side of the transparent strip, and the transparent strip reflects light provided from a light source of a portable terminal located adjacent to the second side and transmits the light to the dye pad.

A kit for detecting an inflammation level of an oral cavity based on a biomarker indicative of inflammation, the kit comprising at least one rinsing substance; a cup sized to contain a predetermined amount of at least one rinsing substance; a colourimetric reference corresponding to a predetermined inflammation level, and a colourimetric indicator reactive to the biomarker in the at least one rinsing substance consistently with the colourimetric reference.

An immunobiosensor is disclosed. The immunobiosensor is based on a membrane lateral flow immuno-chromatographic assay (LF-ICA). The immunobiosensor includes: a metal binding protein 10 whose conformation changes upon reaction with a metal ion 1 in a sample; a sensing antibody 20 reacting with the conformationally changed metal binding protein 10 as an antigen; a signal substance 30 conjugated with the metal binding protein 10 or the sensing antibody 20 to form a signal conjugate 30a or 30b; a signal generator 40 reacting with the signal conjugate 30a or 30b to generate a reaction signal; and a reaction strip 50 in the form of a porous membrane adapted to move the sample and where the antigen-antibody reaction occurs and the reaction signal is generated. Also disclosed is a sensor system including the immunobiosensor.