Flexible and stretchable micromagnet arrays for tunable biointerfacing.

Tseng, Peter; Lin, Jonathan; Owsley, Keegan; Kong, Janay; Kunze, Anja; Murray, Coleman; Di Carlo, Dino · Adv Mater · 2015

basic_science · Level V

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Abstract

A process to surface pattern polydimethylsiloxane (PDMS) with ferromagnetic structures of varying sizes (micrometer to millimeter) and thicknesses (>70 μm) is developed. Their flexibility and magnetic reach are utilized to confer dynamic, additive properties to a variety of substrates, such as coverslips and Eppendorf tubes. It is found that these substrates can generate additional modes of magnetic droplet manipulation, and can tunably steer magnetic-cell organization.

Medical subject headings