ArticleFrontiers in plant science2021
Dynamic Surface Tension Enhances the Stability of Nanobubbles in Xylem Sap.
Article in Frontiers in plant science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 17 citations in OpenAlex.
- Toward understanding apoplastic freezing under negative pressure.The New phytologist · 2025Article
- Ruptures of mixed lipid monolayers under tension and supercooling: implications for nanobubbles in plants.Nanoscale advances · 2024Article
- Lipid concentration and composition in xylem sap of woody angiosperms from a tropical savanna and a seasonal rainforest.Plant diversity · 2024Article
- Lipid-Coated Nanobubbles in Plants.Nanomaterials (Basel, Switzerland) · 2023Review
- Pit characters determine drought-induced embolism resistance of leaf xylem across 18 Neotropical tree species.Plant physiology · 2022Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Air seeded nanobubbles have recently been observed within tree sap under negative pressure. They are stabilized by an as yet unidentified process, although some embolize their vessels in extreme circumstances. Current literature suggests that a varying surface tension helps bubbles survive, but few direct measurements of this quantity have been made. Here, we present calculations of dynamic surface tension for two biologically relevant lipids using molecular dynamics simulations. We find that glycolipid monolayers resist expansion proportionally to the rate of expansion. Their surface tension increases with the tension applied, in a similar way to the viscosity of a non-Newtonian fluid. In contrast, a prototypical phospholipid was equally resistant to all applied tensions, suggesting that the fate of a given nanobubble is dependent on its surface composition. By incorporating our results into a Classical Nucleation Theory (CNT) framework, we predict nanobubble stability with respect to embolism. We find that the metastable radius of glycolipid coated nanobubbles is approximately 35 nm, and that embolism is in this case unlikely when the external pressure is
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