Abstract: The present invention relates to the use of TFF3 in the diagnosis and detection of Barrett's esophagus using non-invasive, non-endoscopic methods.

Abstract: A device for testing a specimen comprising a first panel, a metering aperture structure having a plurality of metering apertures formed therein for receiving the specimen therethrough, a second panel opposite the first panel, a sheet disposed between the first and second panels, the sheet including a test area aligned with the plurality of metering apertures, a spacer element disposed between the first panel and the sheet, wherein the metering aperture structure is spaced away from the test area thereby improving readability of the testing. A method of manufacturing a specimen testing device is also disclosed.

Abstract: A collection device for use in connection with off-device testing of collected samples. The device includes a first panel having one or more apertures for receiving samples, a second panel opposite the first panel, and a removable tab having a first portion and a second portion. The first portion is aligned with at least one of apertures on the first panel and constructed such that depositing the sample through the at least one aperture causes the sample to be directly deposited on the first portion of the tab, and the second portion includes a sample-free grasping area accessible from an exterior of the device for removing the tab. A method of obtaining a sample is also disclosed.

Abstract: Systems and methods are disclosed to automatically detect the presence of a substance on a test swipe by capturing a background image of the test swipe; applying one or more test chemicals to a test swipe; adjusting the temperature of the test swipe to a predetermined temperature range; capturing an in-situ image of the test swipe after the application of chemical at the predetermined temperature range; subtracting the background image from the in-situ image; generating a difference value from the two images; and searching a known database to identify the substance.

Abstract: With respect to a lead detection method that uses rhodizonic acid, it is made possible to clearly identify pink or red coloration caused by a reaction between lead and rhodizonic acid even in cases where Sn is present in a specimen. To this end, an acidic aqueous solution or a buffer solution thereof (e.g., tartaric acid) in which hydrogen peroxide coexists is used as a reagent. Hydrogen peroxide oxidizes Sn2+ into Sn4+. Since Sn4+ does not react with rhodizonic acid, the presence of Sn does not interfere with the visual identification of any pink or red coloration caused by the reaction between lead and rhodizonic acid.

Abstract: An oral fluid collection and transfer device comprises a collection device (10) and a test cartridge (100). The collection device includes a frame or chassis (14), and an absorbing pad (12) for absorbing oral fluid and which is secured around part of the frame with part of the frame protruding from the pad. A collapsible cover (16) covers the absorbing means and has apertures (68) for the ingress of oral fluid into contact with the absorbing pad. A cap (18) covers the part of the frame protruding from the absorbing pad. The cap and the cover latch together to surround the frame and the absorbing pad. The device also includes a fluid adequacy indicator (20) in the form of an electrical circuit with an LED (66) which is completed when the absorbing means has absorbed a predetermined volume of oral fluid.

Abstract: A tester for testing for explosives associated with a test location comprising a first explosives detecting reagent; a first reagent holder, the first reagent holder containing the first explosives detecting reagent; a second explosives detecting reagent; a second reagent holder, the second reagent holder containing the second explosives detecting reagent; a sample collection unit for exposure to the test location, exposure to the first explosives detecting reagent, and exposure to the second explosives detecting reagent; and a body unit containing a heater for heating the sample collection unit for testing the test location for the explosives.