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Keywords:

  • Colloidal particles;
  • Magnetic properties;
  • Micropatterning;
  • Self-assembly

Magnetically driven self-assembly of colloidal particles into highly ordered structures on a substrate is demonstrated. This process allows for programming of specific geometrical patterns of colloidal particles. It also permits assembly of well-defined colloidal patterns of many different particle types, possibly carrying different labels, e.g., fluorescently labeled beads (see Figure), or different molecular species.