ArticleProceedings of the National Academy of Sciences of the United States of America2005
Origin of the long-range attraction between surfactant-coated surfaces.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- The Hydrophobic Effect Studied by Using Interacting Colloidal Suspensions.International journal of molecular sciences · 2023Article
- A Roadmap for Building Waterborne Virus Traps.JACS Au · 2022Review
- Article
- Sample-to-sample torque fluctuations in a system of coaxial randomly charged surfaces.The European physical journal. E, Soft matter · 2012Article
- Role of hydration in collagen recognition by bacterial adhesins.Biophysical journal · 2011Article
- The search for the hydrophobic force law.Faraday discussions · 2010Article
- Like-charge interactions between colloidal particles are asymmetric with respect to sign.Soft matter · 2009Article
- Probing the intrinsically oil-wet surfaces of pores in North Sea chalk at subpore resolution.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- Hydrophobe-water interactions: methane as a model.Biophysical journal · 2008Article
- The origin of long-range attraction between hydrophobes in water.Biophysical journal · 2007Article
- Recent progress in understanding hydrophobic interactions.Proceedings of the National Academy of Sciences of the United States of America · 2006Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We compare the "long-range hydrophobic forces" measured (i) in the "symmetric" system between two mica surfaces that had been rendered hydrophobic by the adsorption of a double-chained cationic surfactant, and (ii) between one such hydrophobic surface and a hydrophilic surface of bare mica ("asymmetric" case). In both cases, the forces were purely attractive, stronger than van der Waals, and of long-range, as previously reported, with those of the asymmetric, hydrophobic-hydrophilic system being even stronger and of longer range. Atomic force microscopy images of these surfaces show that the monolayers transform into patchy bilayers when the surfaces are immersed in water, and that the resulting surfaces contain large micrometer-sized regions of positive charges (bilayer) and negative charges (bare mica) while remaining overall neutral. The natural alignment of oppositely charged domains as two such surfaces approach would result in a long-range electrostatic attraction in water, but the short-range, "truly hydrophobic" interaction is not explained by these results.
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