Sartorius Stedim Biotech is a leading provider of products and services for fermentation, filtration, purification, fluid management and lab technologies. SSB is the #1 supplier of nitrocellulose membrane for rapid IVDs such as lateral flow strip, flow through device, line blot strip, and protein microarray slides. For OEM devices, SSB offers a new range of hydrophilic or hydrophobic microporous membranes.