The present invention provides a method for preparing a microgroove array surface with a nearly cylindrical surface based on an air molding method, and relates to the technical field of functional surface preparation. The method includes the following steps: (1) preparing a microgroove array surface, uniformly spreading a layer of a liquid polymer film to be formed on the auxiliary plate, and placing a spacer block in an empty position on the microgroove array surface; (2) placing the auxiliary plate spread with the liquid polymer film on the spacer block on the microgroove array surface, maintaining this state, and feeding the auxiliary plate into a vacuum drying oven; and (3), setting a pressure in the vacuum drying oven according to a designed pressure, heating and solidifying the liquid polymer film, and separating the microgroove array surface to obtain the microgroove array surface with the nearly cylindrical surface.

The invention relates to a nozzle for use in a device for administering a liquid medical formulation, to a method for producing the nozzle in the form of a microfluidic component and to a tool for producing microstructures of the microfluidic component. The nozzle is formed by a plastics plate with groove-like microstructures which are covered by a plastics cover on the longitudinal side in a fixed manner. The production method includes a moulding process in which a moulding tool is used, which moulding tool has complementary metal microstructures which have been produced from a semiconductor material in an electrodeposition process by means of a master component.

The method comprises contacting a silicon substrate with a silver salt and an acid for a time effective to produce spikes having a first end disposed on the silicon substrate and a second end extending away from the silicon substrate. The spikes have a second end diameter of about 10 nm to about 200 nm, a height of about 100 nm to 10 micrometers, and a density of about 10 to 100 per square microns. The nanostructures provide antimicrobial properties and can be transferred to the surface of various materials such as polymers.

Method of manufacturing a micromechanical component intended to cooperate with another micromechanical component, the method comprising the steps of providing a substrate, forming a mould on said substrate, said mould defining sidewalls arranged to delimit said micromechanical component, providing particles on at least said sidewalls, depositing a metal in said mould so as to form said micromechanical component, and liberating said micromechanical component from said mould and removing said particles.

A method for producing a structure having at least one curved pattern includes providing a substrate having a front face, where one portion is structured by at least one plurality of reliefs, the reliefs of each plurality defining spaces therebetween, and another portion is free of reliefs. The method also includes depositing a base layer of a material such as a polymer or a glass, on the front face of the substrate, at least in line with the reliefs, and allowing the material of the base layer to at least partially fill the at least one of the spaces by deformation. The base layer is thus deformed so that its free surface has at least one curved pattern.

Method for producing a microfluidic device, the method comprising a step of producing a master mould, the master mould comprising a first support member and a second support member, the second support member comprising a substrate and microstructures, the substrate having a first surface and a second surface opposite the first surface, the step of producing the master mould comprising the following sub-steps:—producing the second support member by forming the microstructures on the first surface of the substrate;—3D printing the first support member using a 3D printer, with a printing resin, the dimensions of the first support member being coordinated with the dimensions of the substrate in order to hold the substrate;—inserting the substrate of the second support member into the first support member.

Method of manufacturing a micromechanical component intended to cooperate with another micromechanical component, the method comprising the steps of providing a substrate, forming a mould on said substrate, said mould defining sidewalls arranged to delimit said micromechanical component, providing particles on at least said sidewalls, depositing a metal in said mould so as to form said micromechanical component, and liberating said micromechanical component from said mould and removing said particles.

The invention relates to a nanocomposite elastic mold for thermal nanoimprint, the mold comprising an elastic substrate, to which a plurality of rigid individual nanofeatures are bonded. The bonding of the rigid individual nanofeatures to the elastic substrate is performed by a process which uses a sacrificial substrate and a sacrificial coating.

A method for fabricating a metallic timepiece component, wherein the method includes the steps of forming, via a UV-LIGA type process combined with hot stamping, a multi-level photosensitive resin mould and electroplating a layer of at least one metal from at least two conductive layers to form a block that substantially reaches the upper surface of the photosensitive resin.

Methods for fabricating three-dimensional microstructures are provided. The method includes disposing a reflow material on a mold, heating the reflow material, and creating a pressure gradient across the reflow material to reflow the material towards a bottom surface of the mold. The mold includes a molding region, a boundary region, and a thermal-isolating region disposed therebetween. The molding region includes a cavity and a projection projecting upwards from a bottom surface of the cavity. The thermal-isolating region includes at least one pocket formed adjacent to and along a perimeter of the cavity of the molding region. During heating, the temperature of the molding region is higher than that of the boundary region and the thermal-isolating region controls the thermal conductivity and mass therebetween. The material reflows towards the bottom surface of the cavity and the protrusion helps shapes the reflow material to form a substantially symmetrical three-dimensional microstructure.