title: A solid state nanopore device for investigating the magnetic properties of magnetic nanoparticles.
abstract: In this study, we explored magnetic nanoparticles translocating through a nanopore in the presence of an inhomogeneous magnetic field. By detecting the ionic current blockade signals with a silicon nitride nanopore, we found that the translocation velocity that is driven by magnetic and hydrodynamic forces on a single magnetic nanoparticle can be accurately determined and is linearly proportional to the magnetization of the magnetic nanoparticle. Thus, we obtained the magneto-susceptibility of an individual nanoparticle and the average susceptibility over one hundred particles within a few minutes.
authors.affiliation: Advanced Institutes of Convergence Technology, Suwon 443-270, Korea. yoonpark77@snu.ac.kr
authors.forename: SangYoon
authors.initials: S
authors.lastname: Park
authors.forename: Jaekwan
authors.initials: J
authors.lastname: Lim
authors.forename: Y Eugene
authors.initials: YE
authors.lastname: Pak
authors.forename: Seunghyun
authors.initials: S
authors.lastname: Moon
authors.forename: Yoon-Kyu
authors.initials: YK
authors.lastname: Song
mesh_terms: D055664:Electrochemical Techniques; D004566:Electrodes; D008027:Light; D060526:Magnetic Fields; D058185:Magnetite Nanoparticles / Q000032:analysis*; D058608:Nanopores; D012542:Scattering, Radiation; D017655:Silicon Compounds / Q000737:chemistry
chemical_list: D058185:Magnetite Nanoparticles; D017655:Silicon Compounds; C032734:silicon nitride