Abstract:
Methods are provided for loading polymeric regions of medical devices with therapeutic agents. In these methods, a polymeric region of a medical device is first pretreated with a solvent system. Subsequently, therapeutic-agent-containing particles are impacted into the pretreated polymeric region at a velocity that is effective to at least partially embed the particles within the pretreated polymeric region. The pretreatment step parameters (e.g., the particular solvent system employed, amount of time that the solvent system contacts the polymeric region, etc.) are typically selected such that the surface tack of the polymeric region is increased. Consequently, the depth, the amount, or both the depth and the amount of the particles that become at least partially embedded in the polymeric region is/are typically increased, relative to what would be achieved in the absence of the pretreatment step. Also provided are medical devices made by such methods.
Abstract:
A thermal coating includes a substrate, a first coating layer, and a second coating layer. The substrate is selected from the group consisting of superalloys and ceramic matrix composites. The first coating layer comprises an alumina powder, a silica binder, and at least one additive selected from either a first group or a second group. The second coating layer comprises at least one of zinc titanate or cerium oxide. A method for applying a thermal coating system includes spraying a bond coat mixture onto a substrate using a liquid electrostatic sprayer. The bond coat mixture comprises an alumina powder, a silica binder, and at least one additive selected from either a first group or a second group. The method further includes applying a top coat mixture onto the bond coat mixture, wherein the top coat mixture comprises at least one of zinc titanate or cerium oxide.
Abstract:
Disclosed herein is a dendrimer, in which metallocene, which is an oxidation-reduction material, is located at a core, and a conjugated dendron is connected to the metallocene core by a linker compound, an organic active layer having the dendrimer, an organic memory device having the organic active layer and a method of manufacturing the organic active layer and the organic memory device. The organic memory device manufactured using a dendrimer having a metallocene core of example embodiments may have a shorter switching time, decreased operation voltage, decreased manufacturing cost and increased reliability, thereby realizing a highly-integrated large-capacity memory device.
Abstract:
A method for controlling a coefficient of friction involves applying a magnetic force, an electro-magnetic force, and/or an electrostatic force to nanoparticles disposed on a surface. The method further involves controlling a rolling-to-sliding ratio of the nanoparticles on the surface by i) adjusting a value of the force applied to the nanoparticles, and/or ii) adjusting an orientation of the nanoparticles by adjusting a direction of the force applied to the nanoparticles.
Abstract:
A painted polymer part containing a conductive polymer composition containing at least one polymer and a modified graphite oxide material, which is a thermally exfoliated graphite oxide with a surface area of from about 300 m2/g to 2600 m2/g, wherein the painted polymer part has been electrospray painted.
Abstract:
An ultrafine continuous fibrous ceramic filter, which comprises a filtering layer of a fibrous porous body, wherein the fibrous porous body comprises continuous ultrafine fibers of metal oxide which are randomly arranged and layered, and powdery nano-alumina incorporated into the ultrafine fibers or coated thereon, the ultrafine fibers being obtained by electrospinning a spinning solution comprising a metal oxide precursor sol-gel solution, and optionally, a polymer resin, and sintering the electrospun fibers, in which the ultrafine fibers have an average diameter of 10˜500 nm, and the fibrous porous body has a pore size of maximum frequency ranging from 0.05 to 2 μm, exhibits high filtration efficiency at a high flow rate, and can be regenerated.
Abstract:
A lubricant dispensing system is provided. The dispensing system includes a lubricant supply, a lubricant dispensing nozzle and a control panel. The dispensing nozzle includes a nozzle body with a fluid passageway therein which is in fluid communication with the lubricant supply, an electrode assembly for electrostatically charging lubricant in the fluid passageway and at least one discharge orifice through which electrostatically charged lubricant can be discharged. The discharge orifice is defined by at least one spray needle having a first end in fluid communication with the fluid passageway and a second end that extends outward of the nozzle body. The control panel directs the flow of lubricant from the lubricant supply to the lubricant dispensing nozzle and controls the electric power supplied to the electrode assembly.
Abstract:
An object of the present invention is to provide a method for stably forming an artificial lipid membrane while suppressing the leakage and evaporation of an electrolytic solution.The present invention is an artificial lipid membrane forming method for forming an artificial lipid membrane using an artificial lipid membrane forming apparatus. The artificial lipid membrane forming apparatus comprises a first chamber, a second chamber, a dividing wall, and an artificial lipid membrane forming portion. Each of the first chamber and the second chamber has a capacity of not smaller than 10 pl and not larger than 200 μl. The artificial lipid membrane forming method of the present invention comprises the steps of: preparing the artificial lipid membrane forming apparatus; adding to the first chamber a first electrolytic solution having a viscosity of not lower than 1.3 mPa·s and not higher than 200 mPa·s; adding a lipid solution to the artificial lipid membrane forming portion; adding to the second chamber a second electrolytic solution having a viscosity of not lower than 1.3 mPa·s and not higher than 200 mPa·s; and forming the artificial lipid membrane.
Abstract:
The present invention relates to the use of alkoxylated amines for treating wood and other cellulose materials in order to enhance their water repellent properties and to reduce water uptake when treated wood or other cellulose materials are brought into contact with water.
Abstract:
A paper coating slip comprising at least one inorganic pigment and, based on 100 parts by weight of the inorganic pigments, less than 40 parts by weight of organic polymers, and less than 25 parts by weight of water or other solvents having a boiling point below 150° C. at 1 bar.