title: Assembly of magnetic nanoparticles into higher structures on patterned magnetic beads under the influence of magnetic field.
abstract: The self-assembly of nanoparticles into higher organizations in a controlled manner has critical importance for the utility of the unique properties of nanoparticles. The behavior of magnetic Fe(3)O(4) nanoparticles (MNPs) with an average size of 6 nm under an enhanced magnetic force is reported. Upon evaporation of the solvent where the MNPs are suspended, formation of unique micrometer-sized structures is achieved only when there is a patterned surface constructed from sub-micrometer size magnetic beads in between the applied magnetic field and the MNPs. The preliminary results indicate that the combined effect of magnetic field and evaporation rate might help the control of nanoparticle behavior on surfaces and interfaces in constructing higher structures.
authors.affiliation: Department of Chemical Engineering, Yeditepe University, Istanbul, Turkey.
authors.forename: Tugce
authors.initials: T
authors.lastname: Ozdemir
authors.forename: Deniz
authors.initials: D
authors.lastname: Sandal
authors.forename: Mustafa
authors.initials: M
authors.lastname: Culha
authors.forename: Amitav
authors.initials: A
authors.lastname: Sanyal
authors.forename: Naz Zeynep
authors.initials: NZ
authors.lastname: Atay
authors.forename: Seyda
authors.initials: S
authors.lastname: Bucak