Flexible and stretchable micromagnet arrays for tunable biointerfacing

Adv Mater. 2015 Feb 11;27(6):1083-9. doi: 10.1002/adma.201404849. Epub 2014 Dec 23.

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.

Keywords: biomagnetism; bioseparation; flexible electromagnetics; magnetic droplet; magnetic separation.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alloys / chemistry*
  • Alloys / radiation effects
  • Crystallization
  • Dimethylpolysiloxanes / chemistry*
  • Dimethylpolysiloxanes / radiation effects
  • Elastic Modulus
  • Electroplating / methods*
  • Equipment Design
  • Equipment Failure Analysis
  • Magnetic Fields
  • Magnets*
  • Materials Testing
  • Microfluidic Analytical Techniques / instrumentation*
  • Miniaturization
  • Particle Size

Substances

  • Alloys
  • Dimethylpolysiloxanes
  • baysilon