To understand Microporous sterilizing filter 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 for clarification of raw solutions in biomedical processes (such as intracellular soluble proteins expressed by E. coli , the broken solution often requires microfiltration clarification, and then proceeds to the next step) and sterilization treatment (such as VLPs and monoclonal antibodies usually need to be filtered with a 0.22um microfiltration membrane for sterile treatment)
For microfiltration, the interception characteristics of the membrane are characterized by the pore size of the membrane. Usually the pore size ranges from 0.1 to 1 micron, so the microfiltration membrane can Large diameter bacteria, suspended solids, etc. are separated. 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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