The present invention relates to a structure for preventing the adhesion of microorganisms, which is capable of preventing microorganisms from adhering to and growing on a surface of an object, and a method of manufacturing the same. The structure for preventing the adhesion of microorganisms includes: a nano-structure configured to include a plurality of protruding structures each having a sharp end, and made of a resin composition; and a plurality of nano-metal particles configured to be distributed inside the nano-structure. A method of manufacturing a structure for preventing adhesion of microorganisms includes preparing a liquid resin; mixing the liquid resin with nano-metal particles; depositing the liquid resin on a substrate; pressing the liquid resin with a master template on which a pattern corresponding to a plurality of protruding structures is formed; and setting or curing the liquid resin.

The present invention describes medical articles having a microstructured surface, methods of preparing such medical articles, and methods of cleaning medical articles having microstructured surface(s).

Films and articles are described comprising a microstructured surface having an array of peak structures and adjacent valleys. For improved cleanability, the valleys preferably have a maximum width ranging from 10 microns to 250 microns and the peak structures have a side wall angle greater than 10 degrees. The peak structures may comprise two or more facets such as in the case of a linear array of prisms or an array of cube-corners elements. The facets form continuous or semi-continuous surfaces in the same direction. The valleys typically lack intersecting walls. Also described are methods of making and methods of use. The microstructured surface of the article can be prepared by various microreplication techniques such as coating, injection molding, embossing, laser etching, extrusion, casting and curing a polymerizable resin; and bonding microstructured film to a surface or article with an adhesive.

Methods and apparatus for cleaning a central venous catheter port are disclosed. An apparatus includes a body, a coupling configured to connect the body to the hub, a cleaning cap coupled to the body, and an actuator disposed within the body for rotating and translating the cap relative to the hub. The cleaning cap includes a cap body defining a cavity and a cleaning member disposed within the cavity, the cleaning member having threads that engage with the threads on the hub.

A superhydrophobic hemispherical array which can realize droplet pancake bouncing phenomenon is provided. The superhydrophobic hemispherical array shows an arc-shape structure which is narrow at the top and wide at the bottom, where a is the angle that substrate-gas interface goes across the gas and reaches substrate-hemisphere interface, d refers to the diameter of the contact area between hemispherical structure and substrate, s represents the space between two adjoining hemispheres, h denotes the vertical height from the top of hemisphere to substrate surface, and 70°≤a≤90°, 900 μm≤d ≤1700 μm, s≤550 μm, 600 μm≤h≤1100 μm, respectively. The superhydrophobic hemispherical array has a water contact angle larger than 150° and roll-off angle lower than 10°.

An anti-fingerprint terminal housing includes a housing substrate, where the housing substrate includes a first surface and a second surface that are oppositely disposed, the first surface faces the exterior of the terminal housing, and the second surface faces the interior of the terminal housing, the first surface is provided with a plurality of spaced convexes or concaves formed by the housing substrate, a distance between boundaries of any two adjacent convexes or concaves on a same side is in a range of 1-900 nanometers (nm), and the height of the convex or the depth of the concave is in a range of 1-400 nm.

The present application relates to multifunctional hierarchically microstructured surfaces and three-dimensional anchored interfacial domain structures. The multifunctional properties are extremal. In one aspect the microstructured surfaces may be super-adhesive. Examples of super-adhesive mechanisms may include gas trapping, fluid trapping, and solid wrinkle trapping. In another aspect the micro structured surfaces may be nearly adhesive-less. Examples of adhesive-less mechanisms may include inter-solid surface lubrication, energy conserving fluid flows, and super-low drag phase-phase lateral displacement. The extremal structures may be obtained by anchoring mechanisms. Examples of anchoring mechanisms may include Wenzel-Cassie formation, contact angle confusion, and capillary effects.

An article includes portions opposing each other across a gap, wherein a width of the gap is a width that causes a capillary action, and wherein a depression-protrusion structure having a lotus effect is provided on at least one of the portions opposing each other.

A condensation management apparatus comprises a microstructured film arranged to condense water vapor on an underside of a substantially horizontal surface. The film comprises channels disposed at least on a first major surface and configured to support capillary movement of condensate. The channels have a channel axis substantially parallel with a longitudinal axis of the film. A capillary siphon structure of the film comprises a fold in the film, a condensate collection region proximate the fold, and a siphon region between the fold and a condensate release location of the film. At least a portion of a second major surface is attached to the underside of the substantially horizontal surface such that longitudinal openings of the channels of the condensate collection region are oriented towards a direction of gravity and the condensate release location is positioned lower along the direction of gravity than the condensate collection region.

The present invention is concerned with a superhydrophobic surface arrangement, an article having the same and a method of making same. The arrangement is configured for generating, upon contact by water droplets, pancaking bouncing and reducing liquid contact time. The arrangement has an array of posts residing on a surface and extending from the surface, said posts having an elongate configuration with a base portion at one end and an upper portion at an opposite end. By way of the configuration of the posts and the Weber number the surface arrangement in use pancake bouncing of liquid droplets and reduction of contact time of the liquid droplets are effected.