Abstract: A card dispenser can include a planar sleeve, an actuator, and a lifter assembly. More specifically, the planar sleeve can be shaped to receive a plurality of cards within a card chamber. A dispense opening within the planar sleeve can be shaped to pass the plurality of cards edgewise. The actuator can extend along an edge of the planar sleeve. The actuator can be pivotable about an actuator pivot located between a retaining end and an actuation end of the actuator. The actuator pivots from a retaining position to a dispense position. The retaining position orients a card contact surface of the retaining end against the plurality of cards to prevent removal of the plurality of cards. The lifter assembly can be associated with the actuation end and can be oriented adjacent a bottom edge of the card chamber.

Abstract: A card dispenser can include a planar sleeve, an actuator, and a lifter assembly. More specifically, the planar sleeve can be shaped to receive a plurality of cards within a card chamber. A dispense opening within the planar sleeve can be shaped to pass the plurality of cards edgewise. The actuator can extend along an edge of the planar sleeve. The actuator can be pivotable about an actuator pivot located between a retaining end and an actuation end of the actuator. The actuator pivots from a retaining position to a dispense position. The retaining position orients a card contact surface of the retaining end against the plurality of cards to prevent removal of the plurality of cards. The lifter assembly can be associated with the actuation end and can be oriented adjacent a bottom edge of the card chamber.

Abstract: A belt buckle is disclosed and described. The belt buckle can include a support structure defining a front side and a back side of the belt buckle. The belt buckle can also include a first belt strap coupling feature supported by the support structure to couple with a first portion of a belt strap. The first belt strap coupling feature can define a belt strap opening configured to receive the first portion of the belt strap therethrough. In addition, the belt buckle can include a second belt strap coupling feature supported by the support structure to couple with a second portion of the belt strap. The first belt strap coupling feature can be sufficient to bindingly engage the first portion of the belt strap when the belt strap extends in opposite directions on the front side and the back side of the belt buckle to minimize relative movement between the first portion of the belt strap and the first belt strap coupling feature.

Abstract: Methods of electrochemically detecting or quantifying an analyte by coupling a plurality of redox-active agents (e.g., guanine-rich oligonucleotides) to the analyte are disclosed. More particularly, this application discloses affinity-based methods for isolating one or more analytes from a sample and subsequently detecting or determining the concentration of the one or more analytes. Detecting or determining the concentration of one or more analytes may involve measuring the extent of oxidation of guanine nucleobases that have been or are coupled to the analyte.

Abstract: A belt buckle is disclosed and described. The belt buckle can include a support structure defining a front side and a back side of the belt buckle. The belt buckle can also include a first belt strap coupling feature supported by the support structure to couple with a first portion of a belt strap. The first belt strap coupling feature can define a belt strap opening configured to receive the first portion of the belt strap therethrough. In addition, the belt buckle can include a second belt strap coupling feature supported by the support structure to couple with a second portion of the belt strap. The first belt strap coupling feature can be sufficient to bindingly engage the first portion of the belt strap when the belt strap extends in opposite directions on the front side and the back side of the belt buckle to minimize relative movement between the first portion of the belt strap and the first belt strap coupling feature.

Abstract: A card dispenser can include a planar sleeve, an actuator, and a lifter assembly. More specifically, the planar sleeve can be shaped to receive a plurality of cards within a card chamber. A dispense opening within the planar sleeve can be shaped to pass the plurality of cards edgewise. The actuator can extend along an edge of the planar sleeve. The actuator can be pivotable about an actuator pivot located between a retaining end and an actuation end of the actuator. The actuator pivots from a retaining position to a dispense position. The retaining position orients a card contact surface of the retaining end against the plurality of cards to prevent removal of the plurality of cards. The lifter assembly can be associated with the actuation end and can be oriented adjacent a bottom edge of the card chamber.