PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27628575-5 2016 Polyethylenimine (PEI) was supported on PME, which is an extra-large-pore silica (pore-expanded MCM-41) with its internal surfaces fully covered by a uniform layer of readily accessible C16 chains from cetyltrimethylammonium (CTMA+ ) cations. Silicon Dioxide 74-80 cystatin B Homo sapiens 40-43