PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26749099-5 2016 Base on the superparamagnetic of Fe3O4@Ag NPs, target miRNA let-7b can be captured, concentrated and direct quantified within a PE tube without any PCR preamplification treatment. ferryl iron 33-38 microRNA let-7b Homo sapiens 60-66