Means for Separating Microorganisms on the Basis of Electrospun Fibers
The invention relates to composite filters for separating microorganisms from liquids that are contaminated therewith. Composite filters of the invention comprise at least one porous, liquid-permeable support material and at least one nonwoven made from electrospun fibers. The support materials are selected from among fiber-oriented nonwovens, matted nonwovens, porous solids, tissues, paper filters, plastic filters, metal screens, and membrane filters. The electrospun fibers can be water-stable polymer fibers made of synthetic polymers or biopolymers, metal fibers, metal oxide fibers, carbon fibers, or ceramic fibers. In order to produce the composite filters, at least one nonwoven fabric is deposited on the support material/s using the electrospinning technique. The microorganisms that can be separated from liquids contaminated therewith using the composite filters of the invention include archaea, bacteria, viruses, fungi, and protozoa. They also include algae and viruses if they are unicellular organisms or multicellular clusters which are not larger than 0.2 mm. The composite filters of the invention can be used for separating microorganisms from cell culture liquids, industrial and private wastewater and process water, blood plasma, blood serum, and cooling lubricants.
GREINER ANDREAS [DE]; AGARWAL SEEMA [DE]; GENSHEIMER MARCO [DE]
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