Abstract:
An apparatus and method related to a drug eluting stent with improved adhesion between a drug excipient coating and a stent substrate is described. In one embodiment of the present invention, an apparatus comprises a stent substrate formed of a metal and/or a polymer and having a surface modified by exposure to ultraviolet light and an atomic oxygen molecule. A polymeric material is coupled with the surface of the stent substrate. In another embodiment, a method includes providing a stent with an adhesive property that is associated with the surface of the stent. The adhesive property of the stent is modified by exposing the surface to ultraviolet light and an atomic oxygen molecule.
Abstract:
A process using ultraviolet light having a wavelength of 160 to 500 nanometers without higher wavelengths and a high intensity between about 1 and 40 watts/cm2 to surface treat a carbon containing fiber is described. The treated fiber contains an enhanced amount of oxygen on the surface which significantly improves the bondability of the fiber in composites.
Abstract:
A pretreatment method for application of coating to shoe parts is capable of replacing the conventional primer coating process with the UV radiation process. The coating pretreatment to the shoe parts can be carried out continuously in an automatic manner. Besides, creating etching effect by using UV-C radiation and ozone activating improves the bonding of the shoe parts to the adhesives, without substantial increase in equipment cost. A pretreatment system for application of coating to shoe parts can be provided with more reaction chambers for UV-C radiation and cleaning, so as to increase the breadth of application of the UV radiation system. Subjecting the surface of the shoe parts to UV-C radiation and cleaning process more than one time can activate the surface, and improve the follow-up coating quality.
Abstract:
A film-forming line is for forming a film on a substrate, and includes a surface-improving treatment device, a film-forming solution applicator, and a timer controller. The surface-improving treatment device is configured to perform a surface-improving treatment on the substrate. The film-forming solution applicator is configured to apply to the substrate a film-forming solution, which is for forming the film, after the substrate has been subjected to the surface-improving treatment by the surface-improving treatment device. The time controller is configured to obtain a time period since the time the surface-improving treatment is conducted by the surface-improving treatment device on the substrate. The present invention allows a film with a substantially uniform thickness to be formed on a substrate.
Abstract:
A method using irradiation with optical light having a wavelength of 160 to 500 nanometers without higher wavelengths with cooling of the surface during the irradiation to modify the surface (12A, 104A, 202A, 304A, 402A, 502A) of a substrate (12, 104, 202, 304, 402, 502) is described. The light is filtered or the lamp (24, 106, 212, 306, 510) is restricted to the limited range to avoid the affects of the higher spectra. The light can be pulsed or continuous. The method is significantly enhanced by the presence of water (14, 124, 204, 306, 410, 508) on the surface, preferably also in the presence of ozone in the water. The treated surfaces are more paintable and bondable.
Abstract:
A composition for a base of a directed self-assembling film includes a compound including an oxo acid group, and a solvent. The compound is preferably represented by formula (1). A represents an organic group having 10 or more carbon atoms and having a valency of n. B represents an oxo acid group. n is an integer of 1 to 200. In a case where n is 2 or greater, a plurality of Bs are identical or different. AB)n (1)
Abstract:
A film-forming method of forming a film on a substrate includes performing a surface-improving treatment on the substrate, determining whether a predetermined amount of time has passed since the surface-improving treatment has been performed on the substrate, applying a film-forming solution to the substrate when it is determined that the predetermined amount of time has not passed, and repeating the surface-improving treatment on the substrate when it is determined that the predetermined amount of time has passed.
Abstract:
We have developed an improved vapor-phase deposition method and apparatus for the application of layers and coatings on various substrates. The method and apparatus are useful in the fabrication of biofunctional devices, Bio-MEMS devices, and in the fabrication of microfluidic devices for biological applications. In one important embodiment, a siloxane substrate surface is treated using a combination of ozone and UV radiation to render the siloxane surface more hydrophilic, and subsequently a functional coating is applied in-situ over the treated surface of the siloxane substrate.
Abstract:
A process using ultraviolet light having a wavelength of 160 to 500 nanometers without higher wavelengths and a high intensity between about 1 and 40 watts/cm2 to surface treat a carbon containing fiber is described. The treated fiber contains an enhanced amount of oxygen on the surface which significantly improves the bondability of the fiber in composites.
Abstract:
First, an ion beam is applied to a workpiece to form a tapered hole the side wall of which is inclined. Next, the application of the ion beam is stopped, and then a material gas is introduced from the gas source to the upper surface of the workpiece from an oblique direction to cause gas molecules to be adsorbed to the upper surface of the workpiece and to the upper portion of the side wall of the hole. Next, introduction of the material gas is stopped, and then the ion beam is applied again to the region of the workpiece where the hole is formed. As a result, at the upper portion of the side wall of the hole, film formation occurs using the gas molecules as the material adsorbed to the side wall of the hole, and, at the bottom portion of the hole, etching of the workpiece occurs.