160results about How to "Completely processed" patented technology

Devices and methods are disclosed for a catheterization process, particularly useful for self-performed catheterizations. A catheter is enclosed in a sheath made from a gas-permeable material. This sheath maximizes gas permeability to prevent air build-up at the distal end of the sheath, resulting in easy self-catheterization for even those with limited manual dexterity.

A process for capturing or concentrating microorganisms for detection or assay comprises (a) providing a concentration device comprising (1) a porous fibrous nonwoven matrix and (2) a plurality of particles of at least one concentration agent that comprises a metal silicate, the particles being enmeshed in the porous fibrous nonwoven matrix; (b) providing a sample comprising at least one target cellular analyte; (c) contacting the concentration device with the sample such that at least a portion of the at least one target cellular analyte is bound to or captured by the concentration device; and (d) detecting the presence of at least one bound target cellular analyte.

The invention belongs to the technical field of chemical catalysts, and particularly relates to a silver-supported nano manganese dioxide catalyst and a preparation method and application thereof. The active ingredient of the catalyst is silver-supported doped manganese dioxide molecular sieve (OMS-2) formed by directionally doping metallic silver into nano manganese dioxide molecular sieve pores; and the supporting amount of the metallic silver is 1 to 25 percent. The catalyst can be used for catalyzing oxidation reaction of formaldehyde at a low temperature, and the formaldehyde can be fully oxidized into carbon dioxide and water under the low-temperature condition so as to remove the formaldehyde; the concentration of the formaldehyde is 1.5 to 2,000ppm; and the full catalytic oxidation temperature of the formaldehyde is 0 to 120 DEG C. The catalyst can be used for removing formaldehyde pollutants from closed systems such as vehicles and rooms.

Device (1) for feeding container closures, comprising guiding means (2) for conveying the closures (100) to a treatment station associable with said device. The device (1) comprises spacer means (5, 105) to deliver the closures to the treatment station at evenly spaced time intervals, said spacer means being operatively associated with said guiding means (2) and positioned upstream from said treatment station. Apparatus for sterilising container closures equipped with a sterilisation station and comprising such a device (1) for feeding container closures to said sterilisation station.

Methods and apparatus for desolvating flowing liquid streams while retaining temporal resolution of dissolved substrates are disclosed. A novel small-scale self-regulating spray dryer preserves temporal resolution while desolvating a liquid chromatography eluent stream and depositing the solute onto an optical surface for infrared spectrographic analysis. The liquid eluent is pumped through a heated nebulizer to create a high-speed jet of solute containing liquid and solvent vapor. This jet is directed circumferentially inside a hot cylindrical cavity. Centrifugal force causes the larger liquid droplets to travel along the outer diameter of the cavity. The cavity surface is heated to cause the droplets to film boil. Film boiling reduces droplet contact with the cavity surface thereby retaining the solute in the droplets. The solute temperature is limited by controlling the pressure into which the solvent evaporates from the droplets. When the droplets are sufficiently small, Stokes drag from the exiting solvent vapor carries the droplets out through the center of the cylindrical cavity. After exiting, the superheated solvent vapor further dries the droplets. Solvent vapor is removed by condensation onto a cooled surface. A freezing point reducing agent may be added to improve removal of solvent condensate. Stokes drag from a non-condensable gas maintains the dried droplets in suspension. This suspension travels through an orifice that focuses the impaction of the dried droplets onto the optical surface for infrared analysis. The deposition surface is in an evacuated chamber and is temperature controlled to freeze liquid solutes yet allowing sublimation of residual solvent.