title: Relaxivity control of magnetic nanoclusters for efficient magnetic relaxation switching assay.
abstract: 50 nm Magnetic nanocluster (MNC) was deliberately selected as an efficient probe for the magnetic relaxation switching (MRSw) assay. After surface modification of MNCs with poly(acrylic acid) to give PAA-MNCs, and employing streptavidin-biotin interactions for the MRSw assay model, a few tenths pM concentration of strepavidin could be determined.
authors.affiliation: Materials Chemistry Laboratory, Department of Chemistry, Seoul National University, Seoul, Korea.
authors.forename: Jinmyung
authors.initials: J
authors.lastname: Cha
authors.forename: Yong-Su
authors.initials: YS
authors.lastname: Kwon
authors.forename: Tae-Jong
authors.initials: TJ
authors.lastname: Yoon
authors.forename: Jin-Kyu
authors.initials: JK
authors.lastname: Lee
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D001710:Biotin / Q000378:metabolism; D002712:Chlorides / Q000737:chemistry; D019855:Ethylene Glycol / Q000737:chemistry; D005290:Ferric Compounds / Q000737:chemistry; D008280:Magnetics; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D019809:Streptavidin / Q000032:analysis / Q000378:metabolism
chemical_list: D000180:Acrylic Resins; D002712:Chlorides; D005290:Ferric Compounds; D058185:Magnetite Nanoparticles; C006903:carbopol 940; D001710:Biotin; D019809:Streptavidin; D019855:Ethylene Glycol; C024555:ferric chloride