Extraction of magnetic particle clusters self-assembled by a magnetic field

Abstract

For the purpose of particle assembly on a nano- or microscale produced by metal particles, we proposed a method of extracting magnetic clusters in the shapes of rods or needles that have been produced in sizes ranging from macroscopic to microscopic. We also succeeded in freely controlling the scale of the magnetic cluster in this size range, with the form remaining stable without the presence of a magnetic field through the use of hydrophilic monomers of oleic acid. We discovered an algebraic rule governing the relation between the scale of the magnetic cluster and the strength of the applied magnetic field.