title: Flexible and stretchable micromagnet arrays for tunable biointerfacing.
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.
authors.affiliation: Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, 5121E Engineering V, Los Angeles, California, 90095, USA.
authors.forename: Peter
authors.initials: P
authors.lastname: Tseng
authors.forename: Jonathan
authors.initials: J
authors.lastname: Lin
authors.forename: Keegan
authors.initials: K
authors.lastname: Owsley
authors.forename: Janay
authors.initials: J
authors.lastname: Kong
authors.forename: Anja
authors.initials: A
authors.lastname: Kunze
authors.forename: Coleman
authors.initials: C
authors.lastname: Murray
authors.forename: Dino
authors.initials: D
authors.lastname: Di Carlo
mesh_terms: D000497:Alloys / Q000737:chemistry* / Q000528:radiation effects; D003460:Crystallization; D004129:Dimethylpolysiloxanes / Q000737:chemistry* / Q000528:radiation effects; D055119:Elastic Modulus; D004595:Electroplating / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D060526:Magnetic Fields; D059346:Magnets; D008422:Materials Testing; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation*; D008904:Miniaturization; D010316:Particle Size
chemical_list: D000497:Alloys; D004129:Dimethylpolysiloxanes; C013830:baysilon
keywords: biomagnetism; bioseparation; flexible electromagnetics; magnetic droplet; magnetic separation