DataVXACS NanoPaper
journal article·2019-02-05Open access

Direct Observation of Gas Meniscus Formation on a Superhydrophobic Surface

Mimmi Eriksson, Mikko Tuominen, Mikael Järn, Per Martin Claesson, Viveca Wallqvist, Hans-Jürgen Butt, Doris Vollmer, Michael Kappl, Joachim Schoelkopf, Patrick A. C. Gane, Hannu Teisala, Agne Swerin

ACS Nano
Publisher pageOpen full text
Source abstract

Abstract

The formation of a bridging gas meniscus via cavitation or nanobubbles is considered the most likely origin of the submicrometer long-range attractive forces measured between hydrophobic surfaces in aqueous solution. However, the dynamics of the formation and evolution of the gas meniscus is still under debate, in particular, in the presence of a thin air layer on a superhydrophobic surface. On superhydrophobic surfaces the range can even exceed 10 μm. Here, we report microscopic images of the formation and growth of a gas meniscus during force measurements between a superhydrophobic surface and a hydrophobic microsphere immersed in water. This is achieved by combining laser scanning confocal microscopy and colloidal probe atomic force microscopy. The configuration allows determination of the volume and shape of the meniscus, together with direct calculation of the Young-Laplace capillary pressure. The long-range attractive interactions acting on separation are due to meniscus formation and volume growth as air is transported from the surface layer.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Surface Modification and Superhydrophobicity · Gas Dynamics and Kinetic Theory · Plasma Diagnostics and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

RISE Research Institutes of Sweden, Bioscience and Materials − Surface, Process and Formulation, SE-114 86 Stockholm, Sweden

KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, SE-100 44 Stockholm, Sweden

Max Planck Institute for Polymer Research, Department of Physics at Interfaces, Ackermannweg 10, DE-55128 Mainz, Germany

Omya International AG, Baslerstrasse 42, CH-4665 Oftringen, Switzerland

Aalto University, School of Chemical Engineering, Department of Bioproducts and Biosystems, FI-00076 Aalto, Finland

Funding

Vetenskapsr??det · Deutsche Forschungsgemeinschaft · European Commission · Alexander von Humboldt-Stiftung · Stiftelsen f??r Strategisk Forskning · Omya International AG

References (35)

Show source-provided references
1. 10.1038/300341a010.1038/300341a0 ↗
2. 10.1103/RevModPhys.87.98110.1103/RevModPhys.87.981 ↗
3. 10.1016/S0021-9797(84)80070-310.1016/S0021-9797(84)80070-3 ↗
4. 10.1021/la00039a00310.1021/la00039a003 ↗
5. 10.1021/j100085a02910.1021/j100085a029 ↗
6. 10.1103/PhysRevLett.80.535710.1103/PhysRevLett.80.5357 ↗
7. 10.1016/S0001-8686(00)00036-110.1016/S0001-8686(00)00036-1 ↗
8. 10.1021/nn800218s10.1021/nn800218s ↗
9. 10.1021/la504001z10.1021/la504001z ↗
10. 10.1073/pnas.150491911210.1073/pnas.1504919112 ↗
11. 10.1021/la502115g10.1021/la502115g ↗
12. 10.1021/acs.langmuir.7b0424610.1021/acs.langmuir.7b04246 ↗
13. 10.1103/PhysRevLett.108.10610110.1103/PhysRevLett.108.106101 ↗
14. 10.1006/jcis.2002.844410.1006/jcis.2002.8444 ↗
15. 10.1126/science.239.4838.39010.1126/science.239.4838.390 ↗
16. 10.1007/s00425005009610.1007/s004250050096 ↗
17. 10.1006/anbo.1997.040010.1006/anbo.1997.0400 ↗
18. 10.1021/ie50320a02410.1021/ie50320a024 ↗
19. 10.1039/tf944400054610.1039/tf9444000546 ↗
20. 10.1021/la301348f10.1021/la301348f ↗
21. 10.1073/pnas.120432810910.1073/pnas.1204328109 ↗
22. 10.1038/442526a10.1038/442526a ↗
23. 10.1021/la300628m10.1021/la300628m ↗
24. 10.1016/j.jcis.2015.02.05410.1016/j.jcis.2015.02.054 ↗
25. 10.1016/j.cocis.2016.09.01110.1016/j.cocis.2016.09.011 ↗
26. 10.1021/la300379u10.1021/la300379u ↗
27. 10.1002/anie.20100247010.1002/anie.201002470 ↗
28. 10.1073/pnas.121867311010.1073/pnas.1218673110 ↗
29. 10.1103/PhysRevLett.112.19610110.1103/PhysRevLett.112.196101 ↗
30. 10.1103/PhysRevLett.116.09610110.1103/PhysRevLett.116.096101 ↗
31. 10.1103/PhysRevLett.121.04800210.1103/PhysRevLett.121.048002 ↗
32. 10.1103/PhysRevMaterials.1.01560210.1103/PhysRevMaterials.1.015602 ↗
33. 10.1016/0021-9797(83)90034-610.1016/0021-9797(83)90034-6 ↗
34. 10.1063/1.115002110.1063/1.1150021 ↗
35. 10.1021/jp404396m10.1021/jp404396m ↗