Abstract: A cartridge format for point-of-care analyte detection in a sample of bodily fluid is provided. The cartridge includes a microfluidic system of channels of varying length containing lyophilized reagent for sample processing. Sample loaded into the cartridge moves to the sensor in a generally downward direction via the microfluidic system. The sample reconstitutes the lyophilized reagents within the channels, and is the only fluid required for analyte measurement. Movement of the sample is regulated by two forces—gravity and pressure within the microfluidic system. The cartridge includes one or more vent valves for relieving the pressure in the microfluidic system, thus allowing, or restricting flow of sample and/or reagent through the cartridge by force of gravity. The cartridge may be connected to an analyzer device having one or more actuators for opening and closing the vent valves and a sensor for measuring the analyte.

Abstract: A system and apparatus for point-of-care analyte detection in a sample of bodily fluid is provided. The system includes a sample cartridge having a microfluidic system of channels and reservoirs, reagents for sample processing, and a sensor for analyte measurement. Sample loaded into the cartridge moves to the sensor in a generally downward direction via the microfluidic system. Movement of the sample is regulated by two forces—gravity and pressure within the microfluidic system—without requiring a pump, or other means, to move the sample. The cartridge includes one or more vent valves for relieving the pressure in the microfluidic system, thus allowing, or restricting flow of sample through the cartridge by force of gravity. The system includes an analyzer device having one or more actuators for opening and closing the vent valves when the cartridge is connected to the analyzer device.

Abstract: Systems and methods detect a target analyte in a breath sample. The system includes a sensor device and an analyzer. The sensor device includes a breath capture mechanism for capturing the target analyte from the breath sample. The captured analyte is transferred to a testing solution. The sensor device includes a receptor for selectively binding the target analyte. The receptor and the bound analyte together form a receptor-analyte complex. The sensor device also includes a sensor. The sensor includes at least one electrode. A surface of the at least one electrode binds the receptor-analyte complex when the sensor is exposed to the testing solution containing the target analyte. The analyzer analyzes the sensor to determine a target analyte level. The analyzer includes an electronics subsystem for determining a change in an electrical property of the sensor caused by the presence of the receptor-analyte complex. The analyzer generates the target analyte level based on the change in the electrical property.

Abstract: A crossbow, or an assembly for a crossbow, that allows the crossbow to be broken down for storage or transport, and then easily assembled together again for operational use. A riser may be attached to the barrel of the crossbow and that can receive the limbs. The riser is attached using pins or securing devices that can be easily removed to allow the riser to be removed from the barrel. By removing all but a foremost securing device, the riser can be rotated to a storage position. One of the securing devices may be used to attach a stirrup to the riser in a hinge-like fashion, wherein the stirrup can be rotated to one of several positions.

Abstract: A hobby craft kit of a slotted board and pins has center line pins at slot ends for the hand knitting of articles.