A device and system for detecting aldehydes or ketones and, more particularly, a device and system, for detecting aldehydes or ketones, utilized in a rotating platform are provided.

A flow cell for oscillating flow PCR has pumping action via thermally-induced internal pressure variations. Rapid movement of a sample comprised of target DNA and associated reagents between heated zones within the flow cell for oscillating flow PCR is achieved without mechanical moving parts and without contamination. A channel extends from a loading port to first and second heated zones and to a central air chamber. The sample is movable between the heated zones in response to central air chamber pressure changes induced by external thermal changes. The flow cell is insertable into a flow cell process heater for heating each heated zone to a respective temperature. The central air chamber is aligned above a flow control heater for thermally inducing the internal pressure changes in the channel.

Transport of a vaporizable liquid containing at least one solute through a material containing nanochannels is performed by contacting material with at least one vaporizable liquid component and inducing liquid transport along nanochannel interior wall surfaces, wherein the material contains nanochannels having an average diameter up to about 300 nm, preferably up to about 100 nm, and liquid transport is induced by partial liquid vaporization. A film of solid material is deposited onto an interior nanochannel wall surface by removing the transport liquid.

Transport of a vaporizable liquid containing at least one solute through a material containing nanochannels is performed by contacting material with at least one vaporizable liquid component and inducing liquid transport along nanochannel interior wall surfaces, wherein the material contains nanochannels having an average diameter up to about 300 nm, preferably up to about 100 nm, and liquid transport is induced by partial liquid vaporization. A film of solid material is deposited onto an interior nanochannel wall surface by removing the transport liquid.

A device and system for detecting aldehydes or ketones and, more particularly, a device and system, for detecting aldehydes or ketones, utilized in a rotating platform are provided.

A rotary evaporator distillation device is provided that includes a flash vaporization section in which the bulk of solvent is removed. By removing most of the solvent before it enters the evaporating flask, the entire device may be smaller in size but achieve distillation at a pace available only in much larger systems.

Microfluidic devices are provided for continuous sampling of biological fluid for extended periods of time, e.g. for periods of time up to and including 10 days. The microfluidic devices can be made from porous hydrophilic substrate, e.g. hydrophilic paper substrates. The devices can include a collection pad, an evaporative pump, and a channel connecting the collection pad and the evaporative pump. Hydrogels at the collection pad can promote collection of sweat or other biological fluids from a subject, which in some aspects is assisted by the use of one or more microneedles on the substrate. An evaporative pump can provide for long periods of sampling by providing continual pumping, e.g. through the use of an evaporation pad where sampled fluid can evaporate.

A test chamber for the microbial and/or a particulate barrier testing of a number of products, the test chamber having a test space which has, at least along a straight section, an inner extent of at least 1.5 m. As a result, a particularly homogeneous microbe and/or particle distribution is achieved. The invention also relates to an associated use and to an associated method.

This disclosure provides an apparatus, including a first plate having a first transport surface and a second plate having a second transport surface. The second plate is positioned at an acute angle with respect to the first plate such that a first transport surface of the first plate faces the second transport surface of the second plate. The first transport surface and the second transport surface are hydrophobic. The apparatus also includes one or more liquid droplets positioned between and in contact with the first transport surface and the second transport surface. During evaporation, the liquid droplet will automatically move towards the cusp of the first plate and the second plate.

Transport of a vaporizable liquid containing at least one solute through a material containing nanochannels is performed by contacting material with at least one vaporizable liquid component and inducing liquid transport along nanochannel interior wall surfaces, wherein the material contains nanochannels having an average diameter up to about 300 nm, preferably up to about 100 nm, and liquid transport is induced by partial liquid vaporization. A film of solid material is deposited onto an Interior nanochannel wall surface by removing the transport liquid.