On the stability and necessary electrophoretic mobility of bare oil nanodroplets in water

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buir.contributor.authorOkur, Halil I.
dc.citation.epage241104-6en_US
dc.citation.issueNumber24en_US
dc.citation.spage241104-1en_US
dc.citation.volumeNumber152en_US
dc.contributor.authorPullanchery, S.
dc.contributor.authorKulik, S.
dc.contributor.authorOkur, Halil I.
dc.contributor.authorde Aguiar, H. B.
dc.contributor.authorRoke, S.
dc.date.accessioned2021-02-11T07:45:31Z
dc.date.available2021-02-11T07:45:31Z
dc.date.issued2020
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractHydrophobic oil droplets, particles, and air bubbles can be dispersed in water as kinetically stabilized dispersions. It has been established since the 19th century that such objects harbor a negative electrostatic potential roughly twice larger than the thermal energy. The source of this charge continues to be one of the core observations in relation to hydrophobicity, and its molecular explanation is still debated. What is clear though is that the stabilizing interaction in these systems is understood in terms of electrostatic repulsion via Derjaguin, Landau, Verwey, and Overbeek theory. Recent work [A. P. Carpenter et al., Proc. Natl. Acad. Sci. U. S. A. 116, 9214 (2019)] has added another element into the discussion, reporting the creation of bare near-zero charged droplets of oil in neat water that are stable for several days. Key to the creation of the droplets is a rigorous glassware cleaning procedure. Here, we investigate these conclusions and show that the cleaning procedure of glassware has no influence on the electrophoretic mobility of the droplets and that oil droplets with near-zero charge are unstable. We provide an alternative possible explanation for the observations involving glass surface chemistry.en_US
dc.identifier.doi10.1063/5.0009640en_US
dc.identifier.issn0021-9606
dc.identifier.urihttp://hdl.handle.net/11693/55065
dc.language.isoEnglishen_US
dc.publisherAmerican Institute of Physicsen_US
dc.relation.isversionofhttps://dx.doi.org/10.1063/5.0009640en_US
dc.source.titleJournal of Chemical Physicsen_US
dc.titleOn the stability and necessary electrophoretic mobility of bare oil nanodroplets in wateren_US
dc.typeArticleen_US
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