Nanofabrication of Isoporous Membranes for Cell Fractionation.

ABSTRACT: Cell fractionations and other biological separations frequently require several steps. They could be much more effectively done by filtration, if isoporous membranes would be available with high pore density, and sharp pore size distribution in the micro- and nanoscale. We propose a combination of two scalable methods, photolithography and dry reactive ion etching, to fabricate a series of polyester membranes with isopores of size 0.7 to 50 μm and high pore density with a demonstrated total area of 38.5 cm². The membranes have pore sizes in the micro- and submicro-range, and pore density 10-fold higher than track-etched analogues, which are the only commercially available isoporous polymeric films. Permeances of 220,000 L m^-2 h^-1bar^-1 were measur

SUBMITTER: Sabirova A 

PROVIDER: S-EPMC7145805 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature