ArticleProceedings of the National Academy of Sciences of the United States of America2016
Geometry-induced capillary emptying.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
4 citing papers in PubMed.
- Toward a complete understanding of quasi-static bubble growth and departure.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Liquid Vibration Energy Harvesting Device Using Ferrofluids.Micromachines · 2023Article
- Bioinspired inner microstructured tube controlled capillary rise.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Plant-inspired pipettes.Journal of the Royal Society, Interface · 2018Article
Corrections and comments
- Erratum issued
- Erratum issued
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When a capillary is half-filled with liquid and turned to the horizontal, the liquid may flow out of the capillary or remain in it. For lack of a better criterion, the standard assumption is that the liquid will remain in a capillary of narrow cross-section, and will flow out otherwise. Here, we present a precise mathematical criterion that determines which of the two outcomes occurs for capillaries of arbitrary cross-sectional shape, and show that the standard assumption fails for certain simple geometries, leading to very rich and counterintuitive behavior. This opens the possibility of creating very sensitive microfluidic devices that respond readily to small physical changes, for instance, by triggering the sudden displacement of fluid along a capillary without the need of any external pumping.
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Registered trials
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