摘要:
Reusable garments and personal care products that have diagnostics embedded therein can be a 2-in-1 diagnostic and hygiene tool. In one example, a reusable menstrual pad with diagnostics embedded therein can serve as a low-cost detection tool for Human Papillomavirus (HPV) in developing regions. The pad, e.g., cloth-based sanitary napkin, can house a diagnostic mechanism so when menstrual blood hits the surface of the pad while in use, the mechanism—or testing strip—can process the blood to test it for HPV markers. The pad can address a complex problem by leveraging the monthly frequency of menstrual cycles to routinely test for HPV.
摘要:
An analyte detection device includes a fluid impermeable layer having a first thickness and at least one inlet port having a diameter, the at least one inlet port defining a fluid pathway through the first thickness. The device also includes a reagent-hosting layer having a second thickness and including at least one of a chemical reagent and a bio-chemical reagent. The reagent-hosting layer is configured to radially receive a sampling fluid via the fluid pathway, where the sampling fluid is configured to interact with the at least one of a chemical reagent and a bio-chemical reagent in the reagent-hosting layer to indicate a characteristic associated with an analyte in the sampling fluid.
摘要:
Provide is a sample analysis tool whose reactivity and reproducibility in analysis can be prevented from decreasing. The sample analysis tool 10 of the present invention includes a development member 11 and a plastic base 16, and at least part of the development member 11 is in contact with the plastic base 16. The sample analysis tool 10 further includes a hydrophilic component layer 15, and the hydrophilic component layer 15 is formed on part or the whole of at least one of a surface of the plastic base 16 and a surface of the development member 11. It is particularly preferable that the hydrophilic component layer 15 contains sucrose or N-methyl glucosamine. In the sample analysis tool 10 of the present invention, since the hydrophilic component layer 15 is formed on part or the whole of at least one of the surface of the plastic base 16 and the surface of the development member 11, it is possible to prevent the adhesion of a hydrophobic component(s) derived from the plastic base 16.
摘要:
A sensing module including a sample loading layer, a sensing layer and an optical resonance layer locating between the sample loading layer and the sensing layer is provided. The sample loading layer includes at least a sample loading depression, and the sample loading depression exposes part of the optical resonance layer, and the sample loading depression is adapted to load sample. A surface of the optical resonance layer has optical resonance structures, and the optical resonance structures are located beside bottom of the sample loading depression or below the bottom of the sample loading depression. The sensing layer is configured to receive light and turn it into electrical signals. A sensing method is also provided.
摘要:
Described herein are apparatus and methods for detecting substances of abuse or other analytes in liquids. For example, the apparatus and methods described herein can be used for real-time detection of analytes, such as substances of abuse. The methods comprise providing a detection area comprising a chromatographic membrane capable of receiving the liquid and allowing for migration of the liquid, the chromatographic membrane comprising an anti-analyte antibody-particle conjugate, an analyte-conjugate protein at a test line; exposing at least the first location of the apparatus to the liquid; and determining whether an interaction between the analyte-conjugate protein and the liquid occurs to detect the presence of the analyte. The chromatographic membrane may further comprise an anti-species antibody at a control line. Specific buffers are disclosed, and these buffers may be used in the preparation of the apparatus to overcome challenges associated with miniaturization and challenges associated with exposure to beverages.
摘要:
Disclosed are devices or apparatus and methods for membrane-, bead- or cell-based biomolecule analysis, where a detectable signal can be measured after affinity binding and/or enzymatic reaction occurs on the membranes, beads or cells. The apparatus or device can rapidly separate the beads or cells from the liquid solution without using centrifugation, vacuum, or magnetic force. The apparatus or device includes a sample well for receiving a sample containing cells or beads, as well as other aqueous solutions, a porous filter membrane at the bottom of the well which is capable of retaining the cells or beads on its upper surface by size exclusion, and an absorbing plug in touch with the filter membrane for removing the liquid solution. Multiple devices can be arranged in a multi-well array in a plate so that signals from multiple assays can be directly analyzed in a plate reader or an imaging instrument.
摘要:
A specimen collection or a specimen collection and testing device having an embossed or raised section. In one embodiment the device includes a first panel with one or more apertures for receiving specimen and a second panel having a removable tab, the removable tab aligned with the one or more apertures when the device is assembled such that depositing specimen through the one or more apertures deposits the specimen on the removable tab. A cover has one or more embossed (or raised) sections that align with the one or more apertures when the cover overlays the first panel, thus helping to prevent adherence of the specimen to the inner surface of the cover.
摘要:
A dynamic sensor interface is provided. Such a dynamic sensor interface may include a reaction layer that includes a biological-based or chemical-based ink that reacts in response to a molecule of interest, a porous membrane that allows for the molecule of interest to pass through to a side that is in contact with the reaction layer, and an adhesive substrate. The reaction of the ink may include a change in a visual appearance of the ink, such as a change in color, transparency, movement within the reaction layer, three-dimensional expansion, three-dimensional contraction, or a tactile change. The reaction layer may include one or more microfluidic channels arranged in a predetermined arrangement such that movement through the microfluidic channels visually indicates detection of the molecule of interest. The reaction of the ink may further include a change in an olfactory property or a thermal property.
摘要:
A sensing module including a sample loading layer, a sensing layer and an optical resonance layer locating between the sample loading layer and the sensing layer is provided. The sample loading layer includes at least a sample loading depression, and the sample loading depression exposes part of the optical resonance layer, and the sample loading depression is adapted to load sample. A surface of the optical resonance layer has optical resonance structures, and the optical resonance structures are located beside bottom of the sample loading depression or below the bottom of the sample loading depression. The sensing layer is configured to receive light and turn it into electrical signals. A sensing method is also provided.
摘要:
A reagent assay in accordance with the present disclosure has a porous alginate core containing a first reagent, a first polysaccharide layer coating the alginate core and having a second reagent, and at least one polysaccharide core comprising a hydration seal and coating the first polysaccharide layer.