Biomaterials, Biodegradables and Biomimetics Research Group

Papers in Scientific Journals

Patterned superhydrophobic paper for microfluidic devices obtained by writing and printing

Abstract

This work outlines inexpensive patterning
methodologies to create open-air microfluidic paperbased devices. A phase-separation methodology was
used to obtain biomimetic superhydrophobic paper,
hierarchically composed by micro and nano topographies. Writing and printing are simple actions that can be used to pattern flat superhydrophobic paper with more wettable channels. In particular, inkjet printing permits controlling the wettability of the surface by changing the darkness of the printed regions. The difference between capillary forces provides the possibility to control and drive liquid flows through the open path lines, just by titling the piece of paper. Additionally, maintaining a continuous flow, it is possible to direct the liquid at different volumetric rates in a horizontal position along non-linear channel paths printed/written over the surface.

Journal
Cellulose
Pagination
1-6
Publisher
Springer Netherlands
ISSN
0969-0239
URL
http://link.springer.com/article/10.1007/s10570-013-9991-6
Keywords
Biomimetic, Open-air microfluidic devices, Patterned paper, superhydrophobicity
Rights
Open Access
Peer Reviewed
Yes
Status
published
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