Abstract
Wetting is essential and ubiquitous in a variety of natural and technological processes.1,2,3 Silicon dioxides-water systems are abundant in nature and play fundamental roles in a vast variety of novel science and engineering activities such as silicon based devices, nanoscale lab on a chip systems and DNA microarrays technologies.4,5,6,7,8 Although extensive experimental, theoretical and computational work has been devoted to study the nature of the interaction between silica and water,2,9-16 at the molecular level a complete understanding of silica-water systems has not been reached. Contact angle computations of water droplets on silica surfaces offers a useful fundamental and quantitative measurement in order to study chemical and physical properties of water-silica systems.3,16,17,18 For hydrophobic systems the static and dynamic properties of the fluid-solid interface are influenced by the presence of air. Hence, nanobubles have been observed and proposed as the origin of long range ``hydrophobic'' forces19-30 even for hydrophilic silica-water interfaces unusual phenomena related to nanobubbles have been observed.31-33 In this work we study the role of air on the wetting of amorphous silica-water systems.
Original language | English |
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Title of host publication | 17th Interdisciplinary Surface Science Conference : ISSC 17 |
Number of pages | 147 |
Volume | 1 |
Place of Publication | 76 Portland Place, London W1B 1NT, UK |
Publisher | Royal Society of Chemistry |
Publication date | 2009 |
Edition | 17 |
Publication status | Published - 2009 |
Event | 17th Interdisciplinary Surface Science Conference - University of Reading, Reading, United Kingdom Duration: 30 Mar 2009 → 2 Apr 2009 Conference number: 17 http://www.iop.org/events/scientific/conferences/y/09/issc/ |
Conference
Conference | 17th Interdisciplinary Surface Science Conference |
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Number | 17 |
Location | University of Reading |
Country/Territory | United Kingdom |
City | Reading |
Period | 30/03/2009 → 02/04/2009 |
Internet address |
Keywords
- Nanofludics
- Molecular Dynamics
- Silica-water interface