Advanced Materials

Programmable Assembly of Heterogeneous Colloidal Particle Arrays


  • The authors are thankful to the US National Science Foundation for its financial support under NIRT award number 0304453.


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.