Publication: Directional autonomous water flow in laser-engineered microfluidic gradient structures on polymethylmetacrylate-coated steel surface
Дата
2020
Авторы
Krylach, I. V.
Kudryashov, S. I.
Fokina, M. I.
Sitnikova, V. E.
Gonchukov, S. A.
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Аннотация
© 2020 Astro Ltd.Autonomous directional water flow was demonstrated on a laser-microstructured steel-supported polymethylmetacrylate (PMMA) film with a surface tension gradient. For this purpose, a 4 μm-thick PMMA layer on AISI 304 steel surface was raster-scanned in air in ablative mode by a 1064 nm, 100 ns laser beam in a number of lines, with the amount and topography of ablated PMMA analyzed by optical microscopy, profilometry and IR spectroscopy. Such scanning, performed at increasing incident fluences, produced a series of chemically and topographically modified, differently water-wet neighbouring mm-sized spots, autonomously driving single-droplet water flow along the surface tension (contact angle) gradient.
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Цитирование
Directional autonomous water flow in laser-engineered microfluidic gradient structures on polymethylmetacrylate-coated steel surface / Krylach, I.V. [et al.] // Laser Physics Letters. - 2020. - 17. - № 8. - 10.1088/1612-202X/ab95a8
URI
https://www.doi.org/10.1088/1612-202X/ab95a8
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https://openrepository.mephi.ru/handle/123456789/22064
https://www.scopus.com/record/display.uri?eid=2-s2.0-85088367891&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000548360000001
https://openrepository.mephi.ru/handle/123456789/22064