relation: http://publicatio.bibl.u-szeged.hu/11875/ title: Multivalent foldamer-based affinity assay for selective recognition of Aβ oligomers creator: Olajos Gábor creator: Bartus Éva creator: Schuster Ildikó creator: Lautner Gergely creator: Gyurcsányi Ervin Róbert creator: Szögi Titanilla creator: Fülöp Lívia creator: Martinek Tamás A. description: Abstract Mimicking the molecular recognition functionality of antibodies is a great challenge. Foldamers are attractive candidates because of their relatively small size and designable interaction surface. This paper describes a sandwich type enzyme-linked immunoassay with a tetravalent β-peptide foldamer helix array as capture element and enzyme labeled tracer antibodies. The assay was found to be selective to β-amyloid oligomeric species with surface features transiently present in ongoing aggregation. In optimized conditions, with special emphasis on the foldamer immobilization, a detection limit of 5 pM was achieved with a linear range of 10–500 pM. These results suggest that protein mimetic foldamers can be useful tools in biosensors and affinity assays. date: 2017 type: Folyóiratcikk type: PeerReviewed format: text identifier: http://publicatio.bibl.u-szeged.hu/11875/1/1_s2.0_S0003267017300922_main_u.pdf identifier: Olajos Gábor; Bartus Éva; Schuster Ildikó; Lautner Gergely; Gyurcsányi Ervin Róbert; Szögi Titanilla; Fülöp Lívia; Martinek Tamás A.: Multivalent foldamer-based affinity assay for selective recognition of Aβ oligomers. ANALYTICA CHIMICA ACTA, 960. pp. 131-137. ISSN 0003-2670 (2017) identifier: doi:10.1016/j.aca.2017.01.013 relation: 3193785 language: eng