Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample includes: (a) a capillary pathway having an upstream end and a downstream end and incorporating a reagent system capable of causing agglutination with the component; (b) optionally, a control capillary pathway; (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test and control capillaries; (d) a power source; (e) detection arrangements electrically associated with the power source for detecting the presence of liquid at a downstream region of the capillaries; (f) a display operated by the power source for indicating the result of the test; and (g) a signal processor associated with the power source, detection arrangement and display for evaluating the result of the test and providing the result on the display.

Abstract: The present invention provides an agglutination based assay system for determining the presence and/or amount of analyte in a sample comprising a test device having one or more capillary pathways comprising detection regions adapted for non-visual detection of a sample which is releasably engageable with a reader which comprises detection means for detecting the sample at the detection regions in each of said capillary pathways and electronic means for indicating the presence and/or amount of analyte.

Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample includes: (a) a capillary pathway having an upstream end and a downstream end and incorporating a reagent system capable of causing agglutination with the component; (b) optionally, a control capillary pathway; (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test and control capillaries; (d) a power source; (e) detection arrangements electrically associated with the power source for detecting the presence of liquid at a downstream region of the capillaries; (f) a display operated by the power source for indicating the result of the test; and (g) a signal processor associated with the power source, detection arrangement and display for evaluating the result of the test and providing the result on the display.

Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample comprises: (a) at least one capillary pathway which has an upstream end and a downstream end and which incorporates a reagent system capable of causing agglutination with said component to be detected (the test capillary); (b) preferably, but optionally, at least one capillary pathway having an upstream end and a downstream end (the control capillary); (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test capillary(s) and if present the control capillary(s); (d) a power source; (c) detection arrangements electrically associated with said power source for detecting the presence of liquid at a downstream region of said testing capillary(s) and if present the control capillary(s); (f) display means operated by said power source for indicating the result of the test; and (g) signal processing means associated with the power source, detect

Abstract: A thermal storage device comprising a container containing a body of zeolite comprising a zeolite sieve and thermally conducting fins extending substantially into the body of zeolite in which said thermally conducting fins are thermally connected to a heat source.

Abstract: A sample testing device for testing for the presence of a component of interest in a liquid sample comprises: (a) at least one capillary pathway which has an upstream end and a downstream end and which incorporates a reagent system capable of causing agglutination with said component to be detected (the test capillary); (b) preferably, but optionally, at least one capillary pathway having an upstream end and a downstream end (the control capillary); (c) a sampling region to which the liquid sample is applied and from which the sample is able to enter the upstream ends of the test capillary(s) and if present the control capillary(s); (d) a power source; (c) detection arrangements electrically associated with said power source for detecting the presence of liquid at a downstream region of said testing capillary(s) and if present the control capillary(s); (f) display means operated by said power source for indicating the result of the test; and (g) signal processing means associated with the power source, detect

Abstract: A process is described in which biological cells are separated from a material sample, such as blood or soil, in which the material sample is formed as a suspension in a fluid and introduced into a chamber. One or more acoustic pressure nodes aggregate the material sample, and a flow of fluid removes soluble matter from the aggregate leaving the biological cells and other inert materials at the node(s). In one aspect of the invention the biological materials are separated from inhibitors that might render their subsequent analysis in, for example, a PCR system difficult. In another aspect of the invention a method is described to extract a clean DNA sample for such biological cells.

Abstract: The present invention provides methods and apparatus for detecting the product of a reaction on a particle held at the pressure node of a standing wave. The methods and apparatus are particularly concerned with blood typing and the Coombs method.