Nanobubbles and the nanobubble bridging capillary force

Hampton, M. A. and Nguyen, A. V. (2010) Nanobubbles and the nanobubble bridging capillary force. Advances in Colloid and Interface Science, 154 1-2: 30-35. doi:10.1016/j.cis.2010.01.006


Author Hampton, M. A.
Nguyen, A. V.
Title Nanobubbles and the nanobubble bridging capillary force
Journal name Advances in Colloid and Interface Science   Check publisher's open access policy
ISSN 0001-8686
1873-3727
Publication date 2010-02-26
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1016/j.cis.2010.01.006
Volume 154
Issue 1-2
Start page 30
End page 35
Total pages 6
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Collection year 2011
Language eng
Formatted abstract
Interactions between hydrophobic surfaces at nanometer separation distances in aqueous solutions are important in a number of biological and industrial processes. Force spectroscopy studies, most notably with the atomic force microscope and surface-force apparatus, have found the existence of a long range hydrophobic attractive force between hydrophobic surfaces in aqueous conditions that cannot be explained by classical colloidal science theories. Numerous mechanisms have been proposed for the hydrophobic force, but in many cases the force is an artifact due to the accumulation of submicroscopic bubbles at the liquid-hydrophobic solid interface, the so called nanobubbles. The coalescence of nanobubbles as hydrophobic surfaces approach forms a gaseous capillary bridge, and thus a capillary force. The existence of nanobubbles has been highly debated over the last 15 years. To date, experimental evidence is sound but a theoretical understanding is still lacking. It is the purpose of this review to bring together the many experimental results on nanobubbles and the resulting capillary force in order to clarify these phenomena. A review of pertinent nanobubble stability and formation theories is also presented.
© 2010 Elsevier B.V. All rights reserved.
Keyword Atomic force microscopy
Dissolved gas
Nanobubble bridging capillary force
Nanobubbles
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: School of Chemical Engineering Publications
Official 2011 Collection
 
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Created: Mon, 07 Mar 2011, 11:27:02 EST by Mr Marc Hampton on behalf of School of Chemical Engineering