PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
19375489-5	2009	The presence of quaternary ammonium moieties resulted in insulin complexing on the surface of aggregates.	quaternary ammonium	16-35	insulin	Homo sapiens	57-64	
18492606-11	2008	These data convincingly show that nanoparticles consisting of chitosan and its quaternary ammonium derivatives loaded with insulin are less effective in facilitating paracellular transport across Caco-2 cell monolayers than the corresponding free polymers.	quaternary ammonium	79-98	insulin	Homo sapiens	123-130