Processes for preparing oleophobic and hydrophobic coatings on a substrate. More particularly, the disclosure relates to omniphobic surface treatment of substrates such as glass, ceramic, glass-ceramic, and the like.

This invention is directed to a plasma cord coating device comprising a pair of opposite and parallel plate electrodes having a first electrode and a second electrode, a pair of planar and parallel dielectric barriers including a first dielectric barrier, and a second dielectric barrier, wherein the first electrode is covered by the first dielectric barrier on a side facing the second electrode and the second electrode is covered by the second dielectric barrier on a side facing the first electrode to form a gap between the first and the second dielectric barriers. This device includes a first foil which extends through the gap and covers the first dielectric barrier and a second foil which extends through the gap and covers the second dielectric barrier to form a plasma treatment zone between the first foil and the second foil.

Embodiments relate to surface treating a substrate, spraying precursor onto the substrate using supercritical carrier fluid, and post-treating the substrate sprayed with the precursor to form a layer with nanometer thickness of material on the substrate. A spraying assembly for spraying the precursor includes one or more spraying modules and one or more radical injectors at one or more sides of the spraying module. A differential spread mechanism is provided between the spraying module and the radical injectors to inject spread gas that isolates the sprayed precursor and radicals generated by the radical injectors. As relative movement between the substrate and the spraying assembly is made, portions of the substrate is exposed to first radicals, sprayed with precursors either one of the spraying modules or both spraying modules using supercritical carrier fluid, and then exposed to second radicals again.

A rational design and fabrication of ZnO/Al.sub.2O.sub.3 core-shell nanowire architectures with tunable geometries (length, spacing, branching) and surface chemistry is provided. The fabricated nanowires significantly delay or even prevent marine biofouling. In some embodiments, hydrophilic nanowires can reduce the fouling coverage by up to approximately 60% after 20 days compared to planar control surfaces. The mechanism of the fouling reduction is mainly due to two geometric effects: reduced effective settlement area and mechanical cell penetration. Further, superhydrophobic nanowires can completely prevent marine algal fouling for up to 22 days. Additionally, the developed nanowire surfaces are transparent across the visible spectrum, making them applicable to windows and oceanographic sensors.

A method for producing nanostructured, hydrophilic, transmissive, anti-reflective surfaces is described. The method for providing a hydrophilic surface includes steps of providing a substrate that is transmissive in at least one wavelength in the infrared to ultraviolet range of the electromagnetic spectrum and comprises at least one surface including nanostructures of a size smaller than the at least one wavelength; and functionalizing the at least one surface with hydroxyl groups thereon. This method provides devices having excellent transmittance and anti-reflectance properties and which are resistant to seawater.

Embodiments relate to surface treating a substrate, spraying precursor onto the substrate using supercritical carrier fluid, and post-treating the substrate sprayed with the precursor to form a layer with nanometer thickness of material on the substrate. A spraying assembly for spraying the precursor includes one or more spraying modules and one or more radical injectors at one or more sides of the spraying module. A differential spread mechanism is provided between the spraying module and the radical injectors to inject spread gas that isolates the sprayed precursor and radicals generated by the radical injectors. As relative movement between the substrate and the spraying assembly is made, portions of the substrate is exposed to first radicals, sprayed with precursors either one of the spraying modules or both spraying modules using supercritical carrier fluid, and then exposed to second radicals again.

An ultramicro circuit board based on an ultrathin adhesiveless flexible carbon-based material and a preparation method thereof. The method comprises the steps of: S1. depositing to form a PI film on a surface of a quantum carbon-based film through a chemical vapor deposition (CVD) reaction, and manufacturing a flexible circuit board base material with a quantum carbon-based film/PI double-layer composite structure; and S2. manufacturing a high-frequency ultramicro circuit antenna on the flexible circuit board base material through a laser scanning etching method. The preparation method has the advantages of being good in environmental friendliness, high in efficiency, low in manufacturing cost and the like, and the manufactured antenna ultramicro circuit board has the advantages of being high in thermal and electrical conductivity, ultra-flexible, low in dielectric, low in loss and high in shielding performance, which can be applied to 5G equipment.

An electrosurgical instrument includes a jaw member having an electrically conductive tissue sealing plate configured to operably couple to a source of electrosurgical energy for treating tissue. A polydimethylsiloxane coating having a thickness in the range of from about 35 nm to about 85 nm is disposed on the tissue sealing plate.

A deposition system includes a multipurpose deposition chamber, a pre-treatment source and a post-treatment source. The multipurpose deposition chamber is configured to deposit parylene on a plurality of electronic devices. The multipurpose deposition chamber is configured to process pre-treatment of the plurality of electronic devices prior to deposition of the parylene. The multipurpose deposition chamber is configured to process post-treatment of the plurality of electronic devices after deposition of the parylene.

Methods for forming an expandable tubular body having a plurality of braided filaments including a first filament including platinum or platinum alloy and a second filament including cobalt-chromium alloy. The methods include applying a first phosphorylcholine material directly on the platinum or platinum alloy of the first filament and applying a silane material on the second filament followed by a second phosphorylcholine material on the silane material on the second filament. The first and second phosphorylcholine materials each define a thickness of less than 100 nanometers.