Surface microstructure array with bacterial adhesion resistance and forming method of surface microstructure array

Abstract

The invention discloses a surface microstructure array with bacterial adhesion resistance and a forming method of the surface microstructure array. A single microstructure of the surface microstructure array is of a sea urchin pavilion structure, the material is photosensitive resin, and the size is micron; nano particles are distributed on the surface of the single microstructure and form a micron / nano composite structure with the sea urchin pavilion structure; and the plurality of composite structures are uniformly distributed on the target surface of a formed part to form the surface microstructure array. According to the forming method of the surface microstructure array, the preparation of the surface microstructure array is completed by using a set of electromagnetic assisted vibration surface projection micro-stereo photoetching system according to certain steps. According to the surface microstructure array, the bacterial adhesion resistance, the adsorption resistance and the self-cleaning performance are good, and the morphology and size of the microstructures are controllable. According to the forming method, through the high-frequency vibration of the electromagnetic assisted vibration device, the agglomeration of the nano particles is reduced, the uniform distribution of the nano particles is realized, and the forming precision and the forming quality are improved;and a movable platform of a forming system can horizontally and linearly move along the Y-axis direction and the X-axis direction, so that the area of a forming layer is enlarged, the size of the formed part is increased, the forming time is reduced, and the forming efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of surface modification and 3D printing molding, and in particular relates to a microstructure array on the inner wall of a biological culture dish with antibacterial properties and a molding method thereof. Background technique [0002] Biofilm is a special growth state formed by microorganisms in order to adapt to the environment, which is conducive to their survival. It is a highly organized multicellular population structure wrapped by their own secreted extracellular mucilage. The formation of biofilm often occurs in the fields of medical treatment and bioengineering, leading to serious problems such as equipment contamination. In the process of biofilm formation, bacterial adhesion is the first step in its formation. Therefore, inhibiting bacterial adhesion is of great significance for controlling biofilm formation. Literature research shows that constructing a superhydrophobic functional surface on ...

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Problems solved by technology

[0003] In view of the above-mentioned technical problems such as the low antibacterial efficiency of the existing anti-bacterial adhesion functional surface and the difficulty in forming the microstructure of the functional surface, the present invention aims to provide a surface microstructure array with anti-bacterial adhesion performance for resin-based medical devices and its molding method

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