FOLDABLE SOFT NANO-FILMS


Nature uses various forces to fold objects into 3D structures (e.g. proteins to insect wing). The scale of folding varies from nanometers to meters, and the forces that govern the folding are physicochemical or field assisted forces:for example, self folding (Chemical or Physical) or Field Assisted folding (Electrostatic fields, Electromagnetic fields, Fluidic Forces or Capillary Forces)

We are working on foldable thin-soft polymer films (e.g. 0.1 mmx100mmx100mm PDMS) and capillary forces (e.g. water on a hydrophobic surface) to fold the structures and cure them with uvltraviolet light. (Figure-1)  You may watch folding movies of our surfaces at youtube:

http://www.youtube.com/watch?v=bkagoEk5RUI

http://www.youtube.com/watch?v=2sGZW8t5sT4

 

Figure 1.   Our aim is to create foldable soft membranes for soft robotics and electronics or foldable tissues for artificial organs.

 

References : (Please note that the PDF files provided in this web site are copyrighted documents)

Sekeroglu, K, Demirel, M.C., “ Directional Folding of Soft Nanofilms ”, submitted, 2010

 

 

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Our research is supported by:

http://www.psu.edu    http://www.onr.navy.mil    http://icam.ucop.edu/
http://www.avh.de    http://www.jnj.com