Abstract: The present invention provides methods of collecting and detecting compounds in a human breath sample, comprising: exhaling into a handheld sample collector to absorb at least one breath compound in an exhaled breath collector of said collector; connecting the handheld sample collector to a breath analyzer; transferring the breath compounds from the exhaled breath collector of the sample collector into the breath analyzer; and detecting breath compounds using two or more sensors. The method may be performed to detect breath compounds for determining health or disease diagnosis, or for drug monitoring.

Abstract: The present invention provides methods of collecting and detecting compounds in a human breath sample, comprising: exhaling into a handheld sample collector to absorb at least one breath compound in an exhaled breath collector of said collector; connecting the handheld sample collector to a breath analyzer; transferring the breath compounds from the exhaled breath collector of the sample collector into the breath analyzer; and detecting breath compounds using two or more sensors. The method may be performed to detect breath compounds for determining health or disease diagnosis, or for drug monitoring.

Abstract: Methods of coating core materials by providing target materials and core materials; ablating the target materials to form ablated particulate target materials; and coating the core materials with said ablated particulate target materials; wherein the method is performed at a pressure of about 10 Torr or higher. Methods of coating particles with nanometer to multiple nanometer thick coatings in atmospheric pressure, and using pneumatic fluidization, are also provided.

Abstract: This invention relates to an improved method of preparing an implantable gel or paste for placement between injured bones or placement in bony voids to induce regeneration, and the compositions produced thereby. Specifically, mineral, ceramic, or processed bone particles are coated with a high molecular weight polymer capable of forming a viscous gel when reconstituted with water, saline, autologous blood, sera, or other medically acceptable solution. This high molecular weight polymer coating material may be a natural or synthetic polymeric material, producing a wettable gel upon exposure to water, saline, or another solution. In storage, the composition will be granular and dry but easily wetted. In use, the material is reconstituted to a viscous malleable paste by the simple addition of water or other medically acceptable solution without the need for aggressive mixing. The paste may be delivered by syringe or manually deposited yet will be resistant to lavage or to displacement by gravity induced flow.