title: Selecting for function: solution synthesis of magnetic nanopropellers.
abstract: We show that we can select magnetically steerable nanopropellers from a set of carbon coated aggregates of magnetic nanoparticles using weak homogeneous rotating magnetic fields. The carbon coating can be functionalized, enabling a wide range of applications. Despite their arbitrary shape, all nanostructures propel parallel to the vector of rotation of the magnetic field. We use a simple theoretical model to find experimental conditions to select nanopropellers which are predominantly smaller than previously published ones.
authors.affiliation: Department of Biomaterials, ‡Department of Colloid Chemistry, and §Department of Theory and Bio-Systems, Max Planck Institute of Colloids and Interfaces , Science Park Golm, 14424 Potsdam, Germany.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Vach
authors.forename: Nicolas
authors.initials: N
authors.lastname: Brun
authors.forename: Mathieu
authors.initials: M
authors.lastname: Bennet
authors.forename: Luca
authors.initials: L
authors.lastname: Bertinetti
authors.forename: Marc
authors.initials: M
authors.lastname: Widdrat
authors.forename: Jens
authors.initials: J
authors.lastname: Baumgartner
authors.forename: Stefan
authors.initials: S
authors.lastname: Klumpp
authors.forename: Peter
authors.initials: P
authors.lastname: Fratzl
authors.forename: Damien
authors.initials: D
authors.lastname: Faivre