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Sartorius Stedim Biotech's Sartoguard NF prefilter series features a combination of high-performance PES and innovative nano-fleece technology.
Sartorius Stedim Biotech’s Sartoguard NF prefilter series completes a combination of high- performance PES and innovative nano-fleece technology. This is the first time that PES nanofleece material is being used for liquid prefiltration applications in biopharmaceutical manufacturing. The newly developed nanofleece technology provides an ultrafine fleece structure based on a small nanofiber diameter of 120-150 nm compared with the fiber diameter of conventional fleece materials of >500 nm.
Sartoguard NF prefilters are one option for downstream protection of more expensive sterilizing-grade and Mycoplasma-retentive filters in challenging prefiltration applications for biopharmaceutical manufacturing. All active filter materials--membranes and nanofleece--of the new prefilter series are made of polyethersulfone. This enables users to implement Sartoguard NF into existing filtration processes utilizing final filters already based on PES.