@article{fa04f5ba48d34ae0bb7366757a2feacf,
title = "Cavitation-induced microjets tuned by channels with alternating wettability patterns",
abstract = "A laser pulse focused near the closed end of a glass capillary partially filled with water creates a vapor bubble and an associated pressure wave. The pressure wave travels through the liquid toward the meniscus where it is reflected, creating a fast, focused microjet. In this study, we selectively coat the hydrophilic glass capillaries with hydrophobic strips along the capillary. The result after filling the capillary is a static meniscus which has a curvature markedly different than an unmodified capillary. This tilting asymmetry in the static meniscus alters the trajectory of the ensuing jets. The hydrophobic strips also influence the advancing contact line and receding contact line as the vapor bubble expands and collapses. We present thirteen different permutations of this system which includes three geometries and four coating schemes. The combination of geometry and coatings influences the jet breakup, the resulting drop size distribution, the trajectory of the jet tip, and the consistency of jet characteristics across trials. The inclusion of hydrophobic strips promotes jetting in line with the channel axis, with the most effective arrangement dependent on channel size.",
keywords = "2023 OA procedure",
author = "Jelle Schoppink and Keerthana Mohan and Miguel Quetzeri-Santiago and McKinley, {Gareth H.} and Rivas, {David Fernandez} and Dickerson, {Andrew Keith}",
note = "Funding Information: We would like to thank the National Science Foundation CBET-1941341 and the European Research Council (ERC) under the European Union Horizon 2020 Research and Innovation Program (Grant Agreement No. 851630) for support and McKenna E. M. Goss for text edits. Furthermore, we would like to thank Stefan Schlautmann for the fabrication of the microfluidic chips. Publisher Copyright: {\textcopyright} 2023 Author(s).",
year = "2023",
month = mar,
doi = "10.1063/5.0143223",
language = "English",
volume = "35",
journal = "Physics of fluids",
issn = "1070-6631",
publisher = "American Institute of Physics",
number = "3",
}