摘要:
In a method for forming nanopores, two opposing surfaces of a membrane are exposed to an electrically conducting liquid environment. A nanopore nucleation voltage pulse, having a first nucleation pulse amplitude and duration, is applied between the two membrane surfaces, through the liquid environment. After applying the nanopore nucleation voltage pulse, the electrical conductance of the membrane is measured and compared to a first prespecified electrical conductance. Then at least one additional nanopore nucleation voltage pulse is applied between the two membrane surfaces, through the liquid environment, if the measured electrical conductance is no greater than the first prespecified electrical conductance. At least one nanopore diameter tuning voltage pulse, having a tuning pulse voltage amplitude and duration, is applied between the two membrane surfaces, through the liquid environment, if the measured electrical conductance is greater than the first prespecified electrical conductance and no greater than a second prespecified electrical conductance.
摘要:
An object is to provide an aluminum plate having favorable coating properties and favorable adhesiveness to active materials and a method for manufacturing an aluminum plate. The aluminum plate having a plurality of through holes that penetrate in a thickness direction includes through holes A which have an average opening diameter of the through holes of 0.1 µm or more and less than 100 µm and have a shape in which a maximum diameter Ra is formed inside and the maximum diameter Ra and a minimum diameter Rb satisfy 1>Rb/Ra‰¥0.1.
摘要:
A drug-coated stent and a method for fabricating the stent are disclosed. The stent has an originally flat pattern and connection points where the sides of the flat pattern are joined. The method includes the steps of a) cutting a stent pattern into a flat piece of metal thereby to produce a metal pattern, b) spraying the flat metal stent pattern with a polymer and a drug, c) deforming the metal pattern so as to cause two opposing sides to meet, and d) joining the two opposing sides at least at one point. Substantially no portion of the stent projects into the lumen of the stent when the stent is expanded against the internal wall of a blood vessel.
摘要:
An ionic liquid ion source can include a microfabricated body including a base and a tip. The body can be formed of a porous material compatible with at least one of an ionic liquid or room-temperature molten salt. The body can have a pore size gradient that decreases from the base of the body to the tip of the body, such that the at least one of an ionic liquid or room-temperature molten salt is capable of being transported through capillarity from the base to the tip.
摘要:
A method of removing a metal detail from a dielectric material of an article includes placing the article in an electrolyte bath such that at least a portion of the metal detail is submerged. The metal detail is coupled to a dielectric material. The method further includes positioning at least one cathode in the electrolyte bath in spaced relation to the metal detail, and passing electrical current through the metal detail. The method additionally includes deplating the metal detail from the dielectric material in response to passing the electrical current through the metal detail.
摘要:
An electropolishing or electroplating system and method for metal conveyor belts is described. In some embodiments, the system has a metal conveyor belt held in constant tension; a tank for holding an electrolytic fluid, the tank having an interior space suitable to contain the fluid, a metal plate and the metal conveyor belt; and an electrical current supply. In an electropolishing application, the current passes from the metal conveyor belt, through the fluid and into the metal plate. In an electroplating application, the current passes from the metal plate, through the fluid and into the metal conveyor belt.