PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34291576-4 2021 The Nafion membrane used as the PEM served as a solid acid catalyst for the acetalization of ethanol and electrochemically formed acetaldehyde. perfluorosulfonic acid 4-10 mucin 1, cell surface associated Homo sapiens 32-35