Microcontact printing and lithographic patterning of electrospun nanofibers.
We describe a method for printing electrospun nanofibers from a collector onto another substrate. The electrospinning collector that we used is made of a thin layer of polydimethylsiloxane (PDMS) on glass with or without patterned electrodes, allowing the fabrication of either aligned or randomly deposited nanofibers. Afterwards, the electrospun fibers are printed onto a glass substrate, and such a process can be repeatedly used to obtain multilayer fibers with a good reproducibility. We also show a postprocessing method for the pattern formation of electrospun nanofibers by using standard photolithography and reactive ion etching techniques, thereby providing a way of fabricating microarrays of single fibers or distributed fiber matrices.
Shi
J
J
Ecole Normale Supérieure, CNRS-ENS-UPMC UMR 8640, 24 rue Lhomond, 75005 Paris, France.
Wang
L
L
Chen
Y
Y