ArticleJournal of visualized experiments : JoVE2022
Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces.
Article in Journal of visualized experiments : JoVE, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 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
7 citing papers in PubMed, 8 citations in OpenAlex.
- How to Successfully Navigate Flatland: A Tutorial on the Rheometry of Fluid-Fluid Interfaces.Langmuir : the ACS journal of surfaces and colloids · 2026Article
- Curvature- and temperature-dependent transport of soluble surfactant mixtures to the air-aqueous surface with applications in fluorine-free firefighting foams.Journal of colloid and interface science · 2025Article
- New experiments and models to describe soluble surfactant adsorption above and below the critical micelle concentration.Journal of colloid and interface science · 2025Article
- Distinct Contributions of Particle Adsorption and Interfacial Compression to the Surface Pressure of a Fluid Interface.Langmuir : the ACS journal of surfaces and colloids · 2024Article
- Evolution of interfacial mechanics of lung surfactant mimics progression of acute respiratory distress syndrome.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Curvature and shape relaxation in surface-viscous domains.Physical review fluids · 2023Article
- Dilatational and shear rheology of soluble and insoluble monolayers with a Langmuir trough.Journal of colloid and interface science · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
Adsorption of surface-active molecules to fluid-fluid interfaces is ubiquitous in nature. Characterizing these interfaces requires measuring surfactant adsorption rates, evaluating equilibrium surface tensions as a function of bulk surfactant concentration, and relating how surface tension changes with changes in the interfacial area following equilibration. Simultaneous visualization of the interface using fluorescence imaging with a high-speed confocal microscope allows the direct evaluation of structure-function relationships. In the capillary pressure microtensiometer (CPM), a hemispherical air bubble is pinned at the end of the capillary in a 1 mL volume liquid reservoir. The capillary pressure across the bubble interface is controlled via a commercial microfluidic flow controller that allows for model-based pressure, bubble curvature, or bubble area control based on the Laplace equation. Compared to previous techniques such as the Langmuir trough and pendant drop, the measurement and control precision and response time are greatly enhanced; capillary pressure variations can be applied and controlled in milliseconds. The dynamic response of the bubble interface is visualized via a second optical lens as the bubble expands and contracts. The bubble contour is fit to a circular profile to determine the bubble curvature radius, R, as well as any deviations from circularity that would invalidate the results. The Laplace equation is used to determine the dynamic surface tension of the interface. Following equilibration, small pressure oscillations can be imposed by the computer-controlled microfluidic pump to oscillate the bubble radius (frequencies of 0.001-100 cycles/min) to determine the dilatational modulus The overall dimensions of the system are sufficiently small that the microtensiometer fits under the lens of a high-speed confocal microscope allowing fluorescently tagged chemical species to be quantitatively tracked with submicron lateral resolution.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.