About: http://webisa.webdatacommons.org/124336657

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	QSD uses positively charged ligands elevated from the membrane surface by chains grafted on a 0.2 ??m polyethylene membrane to remove negatively charged impurities including DNA, host cell proteins, and viruses in flow-through mode.
http://www.w3.org/ns/prov#wasQuotedFrom	genengnews.com