Abstract: The present disclosure provides an automated system and method for protein digestion, recovery, and analysis. The present disclosure also provides a buffer solution for use therein.

Abstract: A pressure-activated flotation device for use with an electronic device includes an attachment feature, chemicals, a container, a removable cap, an inflatable tube, and a pressure-activated valve. The inflatable tube is fluidly connected to the container and is configured to inflate with the expanding gas when the chemicals are exposed to a liquid. The pressure-activated valve leads from the outer surface of the container to the inner volume of the container and includes a one-way valve that opens to allow liquid to flow to the inner volume of the container when the pressure-activated flotation device is submerged in the liquid to a depth where the pressure applied against the pressure-activated valve by the liquid is greater than an actuation pressure. The one-way valve also closes when the expanding gas generates a gas pressure inside the inflatable tube that exceeds a threshold.

Abstract: A pressure-activated flotation device for use with an electronic device includes an attachment feature, chemicals, a container, a removable cap, an inflatable tube, and a pressure-activated valve. The inflatable tube is fluidly connected to the container and is configured to inflate with the expanding gas when the chemicals are exposed to a liquid. The pressure-activated valve leads from the outer surface of the container to the inner volume of the container and includes a one-way valve that opens to allow liquid to flow to the inner volume of the container when the pressure-activated flotation device is submerged in the liquid to a depth where the pressure applied against the pressure-activated valve by the liquid is greater than an actuation pressure. The one-way valve also closes when the expanding gas generates a gas pressure inside the inflatable tube that exceeds a threshold.

Abstract: A multi-dimensional method is provided for simultaneously analyzing multiple analytes within a sample solution, the method including: adding affinity selectors to a sample solution containing analytes to be measured, the affinity selectors having an affinity for one or more of the analytes within the sample solution; allowing immune complexes to form between the affinity selectors and the analytes; partially or totally resolving the formed immune complexes from non-analyte substances within the sample solution in a first dimension of separation using a selective adsorption technique; dissociating the resolved immune complexes; separating the analytes and the affinity selectors of the dissociated immune complexes from one another in a second dimension of separation using a selective adsorption technique; and resolving the analytes in accordance with their mass-to-charge ratios.

Abstract: A self-inflating device can include a container configured to receive a chemical compound, a one-way valve covering an opening leading to an inner volume of the container, and an inflatable portion fluidly connected to the inner volume of the container and configured to inflate with gas produced when the chemical compound is exposed to water. The inflatable portion can be configured to inflate when a gas pressure inside the self-inflating device exceeds a water pressure outside the self-inflating device. As the inflatable portion inflates with gas produced by the chemical reaction of the chemical compound, the inflatable portion can increase in volume and can displace water in a body of water. Consequently, the overall buoyancy of the self-inflating device can increase, causing the self-inflating device to rise in the water column toward the surface of the body of water where a user can easily retrieve the self-inflating device, as well as any object that is attached to the self-inflating device.

Abstract: A self-inflating device can include a container configured to receive a chemical compound, a one-way valve covering an opening leading to an inner volume of the container, and an inflatable portion fluidly connected to the inner volume of the container and configured to inflate with gas produced when the chemical compound is exposed to water. The inflatable portion can be configured to inflate when a gas pressure inside the self-inflating device exceeds a water pressure outside the self-inflating device. As the inflatable portion inflates with gas produced by the chemical reaction of the chemical compound, the inflatable portion can increase in volume and can displace water in a body of water. Consequently, the overall buoyancy of the self-inflating device can increase, causing the self-inflating device to rise in the water column toward the surface of the body of water where a user can easily retrieve the self-inflating device, as well as any object that is attached to the self-inflating device.

Abstract: A multi-dimensional method for simultaneously analyzing multiple analytes within a sample solution, comprising adding affinity selectors to a sample solution containing analytes to be measured, the affinity selectors having an affinity for one or more of the analytes within the sample solution; allowing immune complexes to form between the affinity selectors and the analytes; partially or totally resolving the formed immune complexes from non-analyte substances within the sample solution; dissociating the resolved immune complexes; separating the analytes and the affinity selectors of the dissociated immune complexes from one another by capturing the analytes through a surface adsorption process; transferring the captured analytes to a detection means; and resolving the analytes with the detection means in accordance with their mass-to-charge ratios.

Abstract: A multi-dimensional method for simultaneously analyzing multiple analytes within a sample solution, comprising adding affinity selectors to a sample solution containing analytes to be measured, the affinity selectors having an affinity for one or more of the analytes within the sample solution; allowing immune complexes to form between the affinity selectors and the analytes; partially or totally resolving the formed immune complexes from non-analyte substances within the sample solution; dissociating the resolved immune complexes; separating the analytes and the affinity selectors of the dissociated immune complexes from one another by capturing the analytes through a surface adsorption process; transferring the captured analytes to a detection means; and resolving the analytes with the detection means in accordance with their mass-to-charge ratios.