Abstract:
Skin-contact products with a transpiration function such as medical devices or medicinal products, of which face masks, aspirators, ventilators, breast pumps or wound dressings are examples are described especially a skin-contact product with a transpiration function with an improved microclimate at a patient interface material-skin contact area. In an embodiment a material system is described that comprises a hydrophobic silicone base material and a hydrophilic silicone material that is combined with the hydrophobic base material.
Abstract:
This invention relates to a rubbery or elastomeric polymer material taking up more than 5% by weight of water and at most 500% by weight of water after immersion in demineralized water at room temperature for a sufficient time to reach saturation, comprising: (a) repeating units from one or more hydrophobic organic monomers, and (b) repeating units from one or more monomers (a) being modified with one or more hydrophilic side groups. The rubbery or elastomeric polymer material may be in the form of a sheet, a foam, a coating adapted for adhesion to a substrate, or a fiber. This invention also relates to processes, polymerizable compositions, and foaming compositions for producing such rubbery or elastomeric polymer materials.
Abstract:
In magnetic resonance imaging (MRI) based on chemical exchange-dependent saturation transfer (CEST), a novel carrier for CEST contrast agents is provided. The carrier is non-spherical and comprises a semipermeable shell, wherein the shell comprises a paramagnetic compound. The shell encloses a cavitycomprising an MR analyte, wherein the semipermeable shell allows diffusion of the MR analyte. The CEST effect is based on the 5 bulk magnetic susceptibility effect caused by the anisotropy of the carrier. This leads to a versatile carrier that does not require interaction of the analyte with a paramgnetic chemical shift reagent.
Abstract:
An elastomeric stamp (10) for printing a pattern on a substrate (500) with an ink (520) is at least partially formed from a first material such as PDMS. The stamp comprises a first surface (12) in a first plane, a second surface (14) in a second plane and a third surface (16) extending from the first surface (12) to the second surface (14). The first surface (12) typically forms to the contact surface of a protruding feature of the stamp (10), whereas the third surface (16) typically forms the edge of such a feature. The first surface (12) comprises a barrier layer (22) being substantially impermeable to the ink (520). Optionally, the second surface (14) may carry a further barrier layer (24) to suppress gas phase diffusion of the ink (520). In contrast, the third surface (16) is permeable to the ink (520). Consequently, a stamp (10) is obtained that is highly suitable for edge transfer lithography type patterning. The first material of the stamp serves as an ink reservoir, thus reducing the re-inking frequency of the stamp, and the layer (22) prevents unwanted diffusion of the ink (520) to the areas of the substrate (500) into contact with the stamp (10), thus 20 improving the feature definition on the substrate surface.
Abstract:
A cushion member for a user interface device is provided. The cushion member is structured to provide a load distribution functionality responsive to the cushion member being donned by the user, wherein at least a portion of the cushion member has a local stiffness of less than or equal to 100 kPa/mm responsive to a stress increase on the cushion member of 1 kPa-15 kPa.
Abstract:
The present invention relates to a method of forming iron oxide nanoparticles comprising the steps of (a) suspending iron oxide/hydroxide and oleic acid or a derivative thereof in a primary organic solvent; (b) increasing the temperature of the suspension by a defined rate up to a maximum of 340° C. to 500° C.; (c) aging the suspension at the maximum temperature of step (b) for about 0.5 to 6 h; (d) cooling the suspension; (e) adding a secondary organic solvent; (f) precipitating nanoparticles by adding a non-solvent and removing excess solvent; (g) dispersing said nanoparticles in said secondary organic solvent; (h) mixing the dispersion of step (g) with a solution of a polymer; and (i) optionally removing said secondary organic solvent. The present invention further relates to an iron oxide nanoparticle obtainable by the method, the additional modification, encapsulation and decoration of such nanoparticles, as well as the use of the nanoparticles as tracers for Magnetic Particle Imaging (MPI), Magnetic Particle Spectroscopy (MPS).
Abstract:
The present invention relates to a process of nano fabrication based on nucleated SAM growth, to patterned substrates prepared thereby, to a nano wire or grid of nanowires prepared thereby and to electronic devices including the same. In particular, there is provided a process which comprises applying a first SAM-forming molecular species to a first surface region of the substrate surface, so as to provide a first SAM defining a scaffold pattern on the first surface region; and applying a second SAM-forming molecular species to at least a second surface region of said substrate surface which is not covered by the first SAM, whereby a second replica SAM comprising the second SAM-forming molecular species selectively forms on substrate surface adjacent to at least one edge of said first SAM.
Abstract:
A collimator panel comprises: a solid panel having a first face for receiving uncollimated radiation and a second opposite face for providing collimated radiation; and a plurality of elongate particles disposed in the panel and orientated to provide the collimating function. A method of manufacturing a collimator panel comprises the steps of: suspending a plurality of elongate particles in a liquid; applying an electric or magnetic field to the suspension to orientate the particles; and solidifying the liquid to fix the orientation of the particles, thereby forming a collimator panel. A method of manufacturing the elongate particles is also provided.
Abstract:
The composition is suitable for the provision of monolayers on selected surfaces. Thereto, it comprises a first compound able to form a monolayer on a first surface, and a second compound able to form a monolayer on a second surface that is different from the first surface, which first and second compounds are chosen such as to be mutually at least substantially inert. The selected surfaces may be present on a single substrate, which allows homogenization, and the provision of masking surfaces covering part of the underlying surfaces. The selected surfaces may alternatively present on different substrates, allowing the use of a printer with a standardized printing pattern.
Abstract:
An elastomeric stamp has a bulk surface from which protruding features extend. A barrier layer covers the bulk surface and the protruding features. After applying an ink solution to the elastomeric stamp and drying the elastomeric stamp, the elastomeric stamp is brought into contact with a surface of a first substrate. The surface of the first substrate has a high affinity with the ink molecules, which is utilized to effectively remove the ink molecules from the contact surfaces of the protruding features. Subsequently, the elastomeric stamp is brought into contact with the surface of a second substrate. Ink molecules are transferred from the edges of the protruding features to the surface of a second substrate, thus forming an ink pattern in the form of a self assembled monolayer on this surface.