Magnetofluidic Tweezing of Nonmagnetic Colloids.

Timonen, Jaakko V I; Demirörs, Ahmet F; Grzybowski, Bartosz A · Adv Mater · 2016

basic_science · Level V

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Abstract

Magnetofluidic tweezing based on negative magnetophoresis and microfabricated core-shell magnetic microtips allows controlled on-demand assembly of colloids and microparticles into various static and dynamic structures such as colloidal crystals (as shown for 3.2 μm silica particles).