Nuclear pore membrane is the use of thermal neutrons in a nucl↑ear reactor to make ---atomic fission of 235 uranium, fi£ssion fragments can penetrate organic high grade plastic film,• a narrow channel of radiation damage is left on the path of the fission fragments.♣ After oxidation, the channel is etched with a suitable chemical reagent, and the channel on theπ film can be transformed into a cylindrical microporeΩ. The nuclear reactor membrane with different pore density and pore> size can be obtained by controlling the irradiation conditions and etching conditions o f the nuclear reactor.
The microporous structure of the nuclear pore membrane is a cavernous labyrinth ∏structure, and the filtration mechanism is "deep filtration"∏. The nuclear pore membrane has high mechanical strength, good flexibility, an≥d can endure repeated washing, so it can be reused many times.
Application of nuclear pore membrane:
Nuclear pore membrane has a wide range of applications in the fields of electronics, food, chemical, pharmaceutical and other indus€tries, such as biology, medicine, environmental science, analysiπs and detection. In the electronics industry, it can be used for the preparation of ultra pure water, photores±ist and process and environmental gas purification, so that the quality and yield of elΩectronic products can be significantly improved. In the pharmaceutical industr£y, it can be used for removal of microparticles and bacteria in injections. In food, it can remove☆ yeast, bacteria, and other residue from wine, beer, and other low-grade wine and allφ kinds of drinks, improve the degree of clarification and st erilize cold, so that it can be stored for a long time without losing its flavor, and it can a✘lso reduce the energy consumption in the production process and can also be us£ed to provide aseptic gas to the fermentor. In the ★chemical industry, it can be used to prepare the super pure reagents, and t↕o recover the valuable suspension, catalyst and so ∏on in the solvents. In environmental engineering, it can be used for atmospheric an®d water sampling, to determine the content, particle size distribution and composition of particles and microbes. In bioengineeri★ng, it can be used for the separation and purificatio→n of microbes and can be used in the study of immune metabolism. In ultra low tem♦perature engineering, the nuclear pore membrane of→ the surface spraying metal can be used as an adiabatic mat→erial at ultra low temperature. In medicine,¥ it can be used to detect the cancer cells in the blood, de termine the deformability of red blood cells in the blood and carry out blood fi≠ltration.
Characteristics of nuclear pore membrane:
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The geometric shape is regular, the size of the aperture ≠is uniform, and it is basically cylindrical straight hole;
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Glossy and smooth surface;
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Large filtration speed and good retention characteristic;
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High mechanical strength and good flexibility;
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Light weight, good weight consistency, low absorbability₩, no adsorption to the effective components of the liquid and eas₹y to be damaged by moisture；
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Good chemical and thermal stability and good biological characteristiδcs；
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The heavy ion microporous membrane has no particles, fiber and so on, so it will not have secondary pollution on filter "liquor like other filter papers.
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