Selecting for function: solution synthesis of magnetic nanopropellers.
basic_science · Level V
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- Record sourced from PubMed, PMID 24127909.
- Also identified by DOI 10.1021/nl402897x and PMC identifier 3885197.
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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.