Results 21 to 30 of about 3,524 (188)

Why Surface Nanobubbles Live for Hours [PDF]

Physical Review Letters, 2013
We present a theoretical model for the experimentally found but counter-intuitive exceptionally long lifetime of surface nanobubbles. We can explain why, under normal experimental conditions, surface nanobubbles are stable for many hours or even up to days rather than the expected microseconds.
Weijs, Joost H., Lohse, Detlef
openaire   +6 more sources

Surface Nanobubbles Nucleate Microdroplets [PDF]

Physical Review Letters, 2014
When a hydrophobic solid is in contact with water, surface nanobubbles often form at the interface. They have a lifetime many orders of magnitude longer than expected. Here, we show that they even withstand a temperature increase to temperatures close to the boiling point of bulk water; i.e., they do not nucleate larger bubbles ("superstability").
Xuehua Zhang, Henri Lhuissier, Chao Sun, Detlef Lohse   +3 more
core   +7 more sources

Covering Surface Nanobubbles with a NaCl Nanoblanket [PDF]

Langmuir, 2013
By letting a NaCl aqueous solution of low (0.01 M) concentration evaporate on a highly oriented pyrolytic graphite (HOPG) surface, it is possible to form a thin film of salt. However, pre-existing surface nanobubbles prevent the homogeneous coverage of the surface with the salt, keeping the footprint areas on the substrate pristine.
Berkelaar, R.P., Zandvliet, H.J.W., Lohse, D.   +2 more
openaire   +6 more sources

Nonintrusive Optical Visualization of Surface Nanobubbles [PDF]

Physical Review Letters, 2012
Individual surface nanobubbles are visualized with nonintrusive optical interference-enhanced reflection microscopy, demonstrating that their formation is not a consequence of the hitherto used intrusive atomic force microscopy technique. We then use this new and fast technique to demonstrate that surface nanobubbles form in less than a few seconds ...
Stefan Karpitschka, Erik Dietrich, James R. T. Seddon, Harold J.W. Zandvliet, Detlef Lohse, Hans Riegler   +5 more
openaire   +6 more sources

Shock-induced collapse of surface nanobubbles [PDF]

Soft Matter, 2021
Liquid jets that develop in surface nanobubble collapse are weaker than in similar sized spherical bubble collapse, resulting in reduced damage and a constant pit depth, independent of initial bubble size.
Duncan Dockar, Livio Gibelli, Matthew K. Borg   +2 more
openaire   +3 more sources

Nanoscale Patterning of Surface Nanobubbles [PDF]

, 2023
Surface nanobubbles forming on hydrophobic surfaces in water present an exciting opportunity as potential agents of top-down, bottom-up nanopatterning. The formation and characteristics of surface nanobubbles are strongly influenced by the physical and chemical properties of the substrate.
Siddique, Anayet Ullah, Xie, Rui, Horlacher, Danielle, Warren, Roseanne   +3 more
openaire   +3 more sources

Particle tracking around surface nanobubbles [PDF]

Journal of Physics: Condensed Matter, 2013
The exceptionally long lifetime of surface nanobubbles remains one of the biggest questions in the field. One of the proposed mechanisms for the stability is the \emph{dynamic equilibrium} model, which describes a constant flux of gas in and out of the bubble. Here, we describe results from particle tracking experiments to measure this flow.
Dietrich, Erik, Zandvliet, Harold J.W., Lohse, Detlef, Seddon, James R.T.   +3 more
openaire   +7 more sources

Formation of surface nanobubbles on nanostructured substrates [PDF]

Nanoscale, 2017
The nucleation and stability of nanoscale gas bubbles located at a solid/liquid interface are attracting significant research interest. It is known that the physical and chemical properties of the solid surface are crucial for the formation and properties of the surface nanobubbles.
Lei, Wang, Xingya, Wang, Liansheng, Wang, Jun, Hu, Chun Lei, Wang, Binyu, Zhao, Xuehua, Zhang, Renzhong, Tai, Mengdong, He, Liqun, Chen, Lijuan, Zhang   +10 more
openaire   +3 more sources

Coarse-grained modelling of surface nanobubbles [PDF]

Journal of Physics: Condensed Matter, 2013
Surface nanobubbles are nanoscale gaseous objects that form on hydrophobic surfaces in contact with water. Understanding nanobubble formation and stability remains challenging due to the lack of appropriate theoretical framework and adequate modelling. Here we present a non-equilibrium coarse-grained model for nanobubbles at hydrophobic surfaces.
Grosfils, Patrick
openaire   +4 more sources

Acoustothermal Nucleation of Surface Nanobubbles [PDF]

Nano Letters, 2021
Ultrasonic surface vibration at high frequencies (O(100 GHz)) can nucleate bubbles in a liquid within a few nanometres from a surface, but the underlying mechanism and the role of surface wettability remain poorly understood. Here, we employ molecular simulations to study and characterize this phenomenon, which we call acoustothermal nucleation.
Saikat Datta, Rohit Pillai, Matthew K. Borg, Khellil Sefiane   +3 more
openaire   +5 more sources