Tailored 3D mechanical metamaterials made by dip-in direct-laser-writing optical lithography

Adv Mater. 2012 May 22;24(20):2710-4. doi: 10.1002/adma.201200584. Epub 2012 Apr 12.


Dip-in direct-laser-writing (DLW) optical lithography allows fabricating complex three-dimensional microstructures without the height restrictions of regular DLW. Bow-tie elements assembled into mechanical metamaterials with positive/zero/negative Poisson's ratio and with sufficient overall size for direct mechanical characterization aim at demonstrating the new possibilities with respect to rationally designed effective materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Lasers*
  • Microscopy, Electron
  • Nanostructures / chemistry
  • Optical Devices
  • Poisson Distribution
  • Polymers / chemistry


  • Polymers