Assertion: liposome's lipid | /r/ObjectUse | used for gene delivery
Facets:
value: due to the polyanionic nature of dna
type: CAUSE
value: usually
type: TEMPORAL
Source sentences:
text: Due to the polyanionic nature of DNA, cationic and neutral lipids are usually used for gene delivery even if the application of anionic liposomes has been fairly limited to the delivery of additional therapeutic macromolecules .