Understanding microporous sterilizing filter membrane materials

To understand Microporous sterilizing filtration membrane, you must first understand what microporous filtration is. Microporous filtration methods include three types: depth filtration (depth), screen filtration (screen) and surface filtration (surface). Depth filter membrane is a matrix made of woven fibers or compressed materials that uses random adsorption or capture to retain particles. The screen filter membrane basically has a consistent structure, just like a sieve, which retains particles larger than the pore size on the surface (the pore size of this filter membrane is very accurate), while surface filtration is multi-layered. Structure, when the solution passes through the filter membrane, particles larger than the pores inside the filter membrane will be retained and mainly accumulated on the surface of the filter membrane.

Microfiltration is often used in biomedical processes to clarify raw solutions (such as Escherichia coli Expressed intracellular soluble proteins, the broken solution often needs to be subjected to microfiltration clarification before proceeding to the next step) and sterilization treatment (such as VLPs and monoclonal antibodies, which usually require 0.22um for sterile treatment. Microfiltration membrane for filtration treatment)

For microfiltration, the retention characteristics of the membrane are characterized by the pore size of the membrane, which usually ranges from 0.1 to 1 micron. , so the microfiltration membrane can separate large-diameter bacteria, suspended solids, etc. It can be used for clarification, security filtration and air sterilization filtration of general liquid materials.

The currently independently developed microporous sterilizing filter membrane series is widely used in organic solvent filtration and has both hydrophobic and hydrophilic properties. Two categories of sex. It can achieve sterility when used for gas filtration, has the characteristics of large flux, temperature resistance, resistance to strong acids and alkalis, and wide chemical applicability. It is suitable for fermentation tanks, carbon dioxide, nitrogen and compressed air. Microporous sterilizing filter membrane When used for liquid filtration, it can intercept all kinds of phages, small bacteria and particles above 0.2μm, meeting the requirements of HIMA small bacteria interception experiments. Interested parties can enter the store for consultation and purchase!

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