摘要:
The present disclosure provides devices and rapid methods to acquire a wound sample to detect and measure NOx, and optionally, one or more other analytes that are indicative of the status of a wound.
摘要:
The present disclosure provides devices and rapid methods to acquire a wound sample to detect the presence of NOx and, optionally, one or more other analytes that are indicative of the status of a wound.
摘要:
The application discloses embodiments of detection devices including a sensor component in a flow path between a first flow path portion and a second flow path portion. In embodiments described, the sensor component includes a receptor in a polymerized composition. The receptor is configured to bind with an analyte in a test sample. Upon binding the sensor component undergoes a detectable change in response to interaction of the analyte with the receptor.
摘要:
The invention relates to devices and methods for analyzing a sample (and preferably preparing a sample), which is particularly used in analysis, such as analysis of a sample for a bacterium of interest.
摘要:
A sample acquisition device includes a capillary array configured to draw in a sample and retain the sample by capillary action. The capillary array may be coupled to an elongated member, such as a stem or a hollow tube, which defines a longitudinal axis extending in a first direction. In some embodiments, the capillary array defines a major sample acquisition surface that extends in a second direction different than the first direction. A ratio of the major sample acquisition surface area to maximum volume retained by the capillary array may be selected to minimize physical binding between the capillary array and sample. In some embodiments, the device may include a feedback mechanism to indicate the relative pressure applied to a sample source with the sample acquisition device. In addition, in some embodiments, the sample acquisition device may include a suction source to help draw the sample into the capillary array.
摘要:
A sample acquisition device includes a capillary array configured to draw in a sample and retain the sample by capillary action. The capillary array may be coupled to an elongated member, such as a stem or a hollow tube, which defines a longitudinal axis extending in a first direction. In some embodiments, the capillary array defines a major sample acquisition surface that extends in a second direction different than the first direction. A ratio of the major sample acquisition surface area to maximum volume retained by the capillary array may be selected to minimize physical binding between the capillary array and sample. In some embodiments, the device may include a feedback mechanism to indicate the relative pressure applied to a sample source with the sample acquisition device. In addition, in some embodiments, the sample acquisition device may include a suction source to help draw the sample into the capillary array.
摘要:
The invention relates to methods of analyzing a sample for a bacterium of interest. In particular, the methods involve an initial capture process that includes the use of one or more antibodies having antigenic specificities for one or more distinct analytes characteristic of the specific bacterium. After initial capture of a specific bacterium, techniques of analyzing involve colorimetric techniques, particularly using colorimetric sensors that include polydiacetylene (PDA) materials.
摘要:
A method for testing efficacy of a protease enzyme assay, the method comprising providing an enzyme which acts as a surrogate enzyme control for the protease enzyme; combining the surrogate enzyme control with an assay substrate for the protease enzyme; and determining a change in the assay substrate resulting from the surrogate enzyme control acting on the assay substrate; wherein the protease enzyme is selected from the group consisting of metalloproteinases, serine proteases, and cysteine proteases; a method for conducting a protease enzyme assay using the method for testing efficacy; a kit including an enzyme which acts as a surrogate enzyme control for a protease enzyme in testing efficacy of a protease enzyme assay; and a method of releasing the kit are provided.
摘要:
A method for testing efficacy of a protease enzyme assay, the method comprising providing an enzyme which acts as a surrogate enzyme control for the protease enzyme; combining the surrogate enzyme control with an assay substrate for the protease enzyme; and determining a change in the assay substrate resulting from the surrogate enzyme control acting on the assay substrate; wherein the protease enzyme is selected from the group consisting of metalloproteinases, serine proteases, and cysteine proteases; a method for conducting a protease enzyme assay using the method for testing efficacy; a kit including an enzyme which acts as a surrogate enzyme control for a protease enzyme in testing efficacy of a protease enzyme assay; and a method of releasing the kit are provided.
摘要:
A sample acquisition device includes a body comprising a plurality of sample acquisition regions defined by at least a first wall and a second wall oriented nonparallel to the first wall. In some embodiments, the body defines a plurality of apertures that define a plurality of sample acquisition regions. In other embodiments, the walls extend from the body, and the sample acquisition regions are defined between the walls. The sample acquisition regions may be configured in some embodiments such that a user may acquire a sample by rotating the body in a first direction relative to a sample source and may release the sample by rotating the body in a second direction that is substantially opposite to the first direction. When rotated in the first direction, at least one of the first or second walls defines a surface that is inclined into a sample acquisition region.