{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["9(58)"],"submitter":["Kim YT"],"pubmed_abstract":["Graphene has attracted significant attention from researchers in recent years as a gas sensing material, because of its atom-thick 2-D structure, extremely high surface-to-volume ratio, and high carrier mobility. However, chemiresistive gas sensors based on graphene have a drawback of low sensitivity to organophosphates, including dimethyl methylphosphonate (DMMP), a simulant of the nerve agent sarin. In this study, we report the detection of 1.3 ppm DMMP, the highest sensitivity reported to date, using graphene chemiresistors, by non-covalently functionalizing graphene with <i>N</i>-substituted triphenylene. The functionalized graphene sensor exhibits a two orders of magnitude higher response to DMMP than to other compounds. This high sensitivity and selectivity are attributed to the stro"],"journal":["RSC advances"],"pagination":["33976-33980"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9073665"],"repository":["biostudies-literature"],"pubmed_title":["Graphene chemiresistors modified with functionalized triphenylene for highly sensitive and selective detection of dimethyl methylphosphonate."],"pmcid":["PMC9073665"],"pubmed_authors":["Lee S","Lee CY","Kim YT","Park S"],"additional_accession":[]},"is_claimable":false,"name":"Graphene chemiresistors modified with functionalized triphenylene for highly sensitive and selective detection of dimethyl methylphosphonate.","description":"Graphene has attracted significant attention from researchers in recent years as a gas sensing material, because of its atom-thick 2-D structure, extremely high surface-to-volume ratio, and high carrier mobility. However, chemiresistive gas sensors based on graphene have a drawback of low sensitivity to organophosphates, including dimethyl methylphosphonate (DMMP), a simulant of the nerve agent sarin. In this study, we report the detection of 1.3 ppm DMMP, the highest sensitivity reported to date, using graphene chemiresistors, by non-covalently functionalizing graphene with <i>N</i>-substituted triphenylene. The functionalized graphene sensor exhibits a two orders of magnitude higher response to DMMP than to other compounds. This high sensitivity and selectivity are attributed to the stro","dates":{"release":"2019-01-01T00:00:00Z","publication":"2019 Oct","modification":"2025-04-26T15:19:23.738Z","creation":"2025-04-06T14:50:49.53Z"},"accession":"S-EPMC9073665","cross_references":{"pubmed":["35528903"],"doi":["10.1039/c9ra07186e"]}}