Abstract：
:The transport of small amounts of liquids on solid surfaces is fundamental for microfluidics applications. Technologies allowing control of droplets of liquid on flat surfaces generally involve the generation of a wettability contrast. This approach is however limited by the resistance to motion caused by the direct contact between the droplet and the solid. We show here that this resistance can be drastically reduced by preventing direct contact with the help of dual-length scale micro-structures and the concept of "liquid-surfaces". These new surfaces allow the gentle transport of droplets along defined paths and with fine control of their speed. Moreover, their high adhesion permits the capture of impacting droplets, opening new possibilities in applications such as fog harvesting and heat transfer.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Launay G,Sadullah MS,McHale G,Ledesma-Aguilar R,Kusumaatmaja H,Wells GGdoi
10.1038/s41598-020-70988-xsubject
Has Abstractpub_date
2020-09-11 00:00:00pages
14987issue
1issn
2045-2322pii
10.1038/s41598-020-70988-xjournal_volume
10pub_type
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