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Rebounding Droplet-Droplet Collisions on Superhydrophobic Surfaces: from the Phenomenon to Droplet Logic
Aalto University, Finland .
Linköping University, Department of Electrical Engineering, Information Coding. Linköping University, The Institute of Technology.
Aalto University, Finland .
Aalto University, Finland .
2012 (English)In: Advanced Materials, ISSN 0935-9648, E-ISSN 1521-4095, Vol. 24, no 42, 5738-5743 p.Article in journal (Refereed) Published
Abstract [en]

When water droplets impact each other while traveling on a superhydrophobic surface, we demonstrate that they are able to rebound like billiard balls. We present elementary Boolean logic operations and a flip-flop memory based on these rebounding water droplet collisions. Furthermore, bouncing or coalescence can be easily controlled by process parameters. Thus by the controlled coalescence of reactive droplets, here using the quenching of fluorescent metal nanoclusters as a model reaction, we also demonstrate an elementary operation for programmable chemistry.

Place, publisher, year, edition, pages
Wiley-VCH Verlag Berlin , 2012. Vol. 24, no 42, 5738-5743 p.
Keyword [en]
water droplets, non-wetting, rebounding collisions, logic operations, fluidics
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-86114DOI: 10.1002/adma.201202980ISI: 000310602200012OAI: diva2:574982

Funding Agencies|Academy of Finland|256206253949256314|Finnish Funding Agency for Technology and Innovation (TEKES)||UPM-Kymmene||

Available from: 2012-12-07 Created: 2012-12-07 Last updated: 2012-12-07

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