ArticleProceedings of the National Academy of Sciences of the United States of America2020
The surface tension of surfactant-containing, finite volume droplets.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
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Who cites it
46 citing papers in PubMed.
- Surface tension measurements reveal charge-driven surfactant depletion in microdroplets approaching the Rayleigh limit.Chemical science · 2026Article
- Synthesis of super-biosafety hydrogen peroxide solution by ultrasonic cavitation.National science review · 2026Article
- Association and dissociation of NaSoft matter · 2026Article
- Photoelectron imaging of substituted benzenes in aqueous aerosol droplets.Physical chemistry chemical physics : PCCP · 2026Article
- Of condensates and coats - reciprocal regulation of clathrin assembly and the growth of protein networks.Nature communications · 2025Article
- Measurements and Model Predictions for the Surface Tension of Aerosol Droplets Containing Mixtures of Strong Nonionic Surfactants and Organic Solutes.Environmental science & technology · 2025Article
- Aerosol Hygroscopicity and Surface-Active Coverage for the Droplet Growth of Aerosol Mixtures.ACS ES&T air · 2025Article
- Impact of Bulk-Phase Self-Assembly on Growth and Activation of Aqueous Surfactant Aerosol.Environmental science & technology · 2025Article
- Article
- Of condensates and coats - reciprocal regulation of clathrin assembly and the growth of protein networks.bioRxiv : the preprint server for biology · 2025Article
- A Machine Learning Approach for Predicting the Pure-Component Surface Tension of Atmospherically Relevant Organic Compounds.ACS ES&T air · 2025Article
- Use of Humidity Controlled Quartz Crystal Microbalance with Simultaneous Grazing Incidence Small Angle X-ray Scattering to Investigate the Self-assembly and Energetics of Lipid Thin Films.Langmuir : the ACS journal of surfaces and colloids · 2025Article
- Nano-Hydroxyapatite/Poly(methyl methacrylate) Composite Bone Scaffold: Surfactant Surface Effects.Polymers · 2025Article
- Resonance-Driven Discrete Growth and Chemical Reactivity of Optically Levitated Droplets.Research (Washington, D.C.) · 2025Article
- Quantifying surface tension of metastable aerosols via electrodeformation.Nature communications · 2024Article
- Model-Measurement Comparisons for Surfactant-Containing Aerosol Droplets.ACS earth & space chemistry · 2024Article
- Evaluating the Extraction and Quantification of Marine Surfactants from Seawater through Solid Phase Extraction and Subsequent Colorimetric Analyses.ACS ES&T water · 2024Article
- Size-Dependent Nascent Sea Spray Aerosol Bounce Fractions and Estimated Viscosity: The Role of Divalent Cation Enrichment, Surface Tension, and the Kelvin Effect.Environmental science & technology · 2024Article
- Toward understanding lipid reorganization in RNA lipid nanoparticles in acidic environments.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Measuring the Surface Tension of Atmospheric Particles and Relevant Mixtures to Better Understand Key Atmospheric Processes.Chemical reviews · 2024Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Surface tension influences the fraction of atmospheric particles that become cloud droplets. Although surfactants are an important component of aerosol mass, the surface tension of activating aerosol particles is still unresolved, with most climate models assuming activating particles have a surface tension equal to that of water. By studying picoliter droplet coalescence, we demonstrate that surfactants can significantly reduce the surface tension of finite-sized droplets below the value for water, consistent with recent field measurements. Significantly, this surface tension reduction is droplet size-dependent and does not correspond exactly to the macroscopic solution value. A fully independent monolayer partitioning model confirms the observed finite-size-dependent surface tension arises from the high surface-to-volume ratio in finite-sized droplets and enables predictions of aerosol hygroscopic growth. This model, constrained by the laboratory measurements, is consistent with a reduction in critical supersaturation for activation, potentially substantially increasing cloud droplet number concentration and modifying radiative cooling relative to current estimates assuming a water surface tension. The results highlight the need for improved constraints on the identities, properties, and concentrations of atmospheric aerosol surfactants in multiple environments and are broadly applicable to any discipline where finite volume effects are operative, such as studies of the competition between reaction rates within the bulk and at the surface of confined volumes and explorations of the influence of surfactants on dried particle morphology from spray driers.
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