Abstract: Products and methods directed to, but not limited to, a sample collection device, a sample collection booklet and a sample collection kit for collection of blood or other bodily fluids, and analytical workflows, protocols, databases and other applications for collecting, sorting, classifying and saving and retrieving information on the subject and characterizations regarding the blood or other bodily fluids of the subject.

Abstract: The present invention relates to devices and methods for collecting, stabilizing and further processing samples, including biological samples such as blood. The invention allows a measurable volume of blood to be introduced into a container, dried by a desiccant in the same or a contacting container, and finally recovered and further processed in a format compatible with a robotic sample processing system. The invention allows collection and processing of larger amounts of blood (20-100 ?l or more) than are conveniently recovered and processed using conventional dried blood spots on filter paper, and to do so under the control of a mobile device such as a smartphone.

Abstract: Methods are provided for estimating the relative amounts of identifiable compartments, such as different types of cells or cell components, within a biological sample. The methods use mass spectrometric analysis in quantitate compartment-specific molecules and thereby allow calculation of the amount of each compartment that is present in a biological sample. The methods can, for example, provide a measurement of hematocrit from a dried blood sample.

Abstract: Devices are provided with enhanced rates of sampling in applications such as monitoring of environmental chemical exposure levels. Preferred embodiments include a small motor and power supply, such as a battery, to move an intake surface with respect to the environment, which embodiments may be used as personal monitors. Chemical species collected through the intake surface diffuse to a collector and the collector may be analyzed for concentration of chemical species.

Abstract: A diagnostic device is provided where the preferred embodiment is useful for sorting seric or plasmatic lipoproteins into four cholesterol fractions. The device comprises a plurality of gel matrixes, preferably agarose-based, defining a liquid pathway upon which a directioinal electrophoretic gradient can be imposed. The gel matrixes are in a serial relationship and preferably are of a successively decreasing pore size from a most upstream matrix to a most downstream matrix. In a preferred embodiment the three more downstream gel matrixes are in a noncontiguous relationship and are separated by interfaces containing buffer. These interfaces are adapted to receive a separate lipoprotein fraction upon reversal of the electrophoretic gradient direction.

Abstract: A simple, inexpensive, and versatile device for measuring gaseous substances and a method for manufacture of such devices are described. The device comprises a reflectant backing which is disposed a layer which is composed of microparticles coated with a reagent and then with a diffusion layer which contains a diffusion moderator and binder, and optionally a plasticizer. A variety of useful configurations of this device are described.