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Switching stiction and adhesion of a liquid on a solid

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Switching stiction and adhesion of a liquid on a solid. / Mertens, S.F.L.; Hemmi, A.; Muff, S.; Groning, O.; De Feyter, S.; Osterwalder, J.; Greber, T.

In: Nature, Vol. 534, No. 7609, 30.06.2016, p. 676-679.

Research output: Contribution to journalJournal article

Harvard

Mertens, SFL, Hemmi, A, Muff, S, Groning, O, De Feyter, S, Osterwalder, J & Greber, T 2016, 'Switching stiction and adhesion of a liquid on a solid', Nature, vol. 534, no. 7609, pp. 676-679. https://doi.org/10.1038/nature18275

APA

Mertens, S. F. L., Hemmi, A., Muff, S., Groning, O., De Feyter, S., Osterwalder, J., & Greber, T. (2016). Switching stiction and adhesion of a liquid on a solid. Nature, 534(7609), 676-679. https://doi.org/10.1038/nature18275

Vancouver

Mertens SFL, Hemmi A, Muff S, Groning O, De Feyter S, Osterwalder J et al. Switching stiction and adhesion of a liquid on a solid. Nature. 2016 Jun 30;534(7609):676-679. https://doi.org/10.1038/nature18275

Author

Mertens, S.F.L. ; Hemmi, A. ; Muff, S. ; Groning, O. ; De Feyter, S. ; Osterwalder, J. ; Greber, T. / Switching stiction and adhesion of a liquid on a solid. In: Nature. 2016 ; Vol. 534, No. 7609. pp. 676-679.

Bibtex

@article{0c6c876d5f434f1eb2c6c94164733e8e,
title = "Switching stiction and adhesion of a liquid on a solid",
abstract = "When a gecko moves on a ceiling it makes use of adhesion and stiction. Stiction-static friction-is experienced on microscopic and macroscopic scales and is related to adhesion and sliding friction. Although important for most locomotive processes, the concepts of adhesion, stiction and sliding friction are often only empirically correlated. A more detailed understanding of these concepts will, for example, help to improve the design of increasingly smaller devices such as micro-and nanoelectromechanical switches. Here we show how stiction and adhesion are related for a liquid drop on a hexagonal boron nitride monolayer on rhodium, by measuring dynamic contact angles in two distinct states of the solid-liquid interface: a corrugated state in the absence of hydrogen intercalation and an intercalation-induced flat state. Stiction and adhesion can be reversibly switched by applying different electrochemical potentials to the sample, causing atomic hydrogen to be intercalated or not. We ascribe the change in adhesion to a change in lateral electric field of in-plane two-nanometre dipole rings, because it cannot be explained by the change in surface roughness known from the Wenzel model. Although the change in adhesion can be calculated for the system we study, it is not yet possible to determine the stiction at such a solid-liquid interface using ab initio methods. The inorganic hybrid of hexagonal boron nitride and rhodium is very stable and represents a new class of switchable surfaces with the potential for application in the study of adhesion, friction and lubrication. {\textcopyright} 2016 Macmillan Publishers Limited.",
keywords = "boron, hydrogen, rhodium, boron derivative, boron nitride, adhesion, electric field, friction, gas, liquid, lubricant, solid, surface roughness, adsorption, Article, cell migration, conformation, contact angle, desorption, dipole, electrowetting, evaporation, hydrogen bond, hydrogen evolution, hydrophobicity, hysteresis, lubrication, microfluidics, periodicity, priority journal, sliding friction, solvation, static electricity, static friction, surface area, surface property, animal, chemistry, electricity, locomotion, wettability, Gekkonidae, Adhesiveness, Animals, Boron Compounds, Electricity, Friction, Hydrogen, Locomotion, Lubrication, Rhodium, Wettability",
author = "S.F.L. Mertens and A. Hemmi and S. Muff and O. Groning and {De Feyter}, S. and J. Osterwalder and T. Greber",
year = "2016",
month = jun,
day = "30",
doi = "10.1038/nature18275",
language = "English",
volume = "534",
pages = "676--679",
journal = "Nature",
issn = "0028-0836",
publisher = "Nature Publishing Group",
number = "7609",

}

RIS

TY - JOUR

T1 - Switching stiction and adhesion of a liquid on a solid

AU - Mertens, S.F.L.

AU - Hemmi, A.

AU - Muff, S.

AU - Groning, O.

AU - De Feyter, S.

AU - Osterwalder, J.

AU - Greber, T.

PY - 2016/6/30

Y1 - 2016/6/30

N2 - When a gecko moves on a ceiling it makes use of adhesion and stiction. Stiction-static friction-is experienced on microscopic and macroscopic scales and is related to adhesion and sliding friction. Although important for most locomotive processes, the concepts of adhesion, stiction and sliding friction are often only empirically correlated. A more detailed understanding of these concepts will, for example, help to improve the design of increasingly smaller devices such as micro-and nanoelectromechanical switches. Here we show how stiction and adhesion are related for a liquid drop on a hexagonal boron nitride monolayer on rhodium, by measuring dynamic contact angles in two distinct states of the solid-liquid interface: a corrugated state in the absence of hydrogen intercalation and an intercalation-induced flat state. Stiction and adhesion can be reversibly switched by applying different electrochemical potentials to the sample, causing atomic hydrogen to be intercalated or not. We ascribe the change in adhesion to a change in lateral electric field of in-plane two-nanometre dipole rings, because it cannot be explained by the change in surface roughness known from the Wenzel model. Although the change in adhesion can be calculated for the system we study, it is not yet possible to determine the stiction at such a solid-liquid interface using ab initio methods. The inorganic hybrid of hexagonal boron nitride and rhodium is very stable and represents a new class of switchable surfaces with the potential for application in the study of adhesion, friction and lubrication. © 2016 Macmillan Publishers Limited.

AB - When a gecko moves on a ceiling it makes use of adhesion and stiction. Stiction-static friction-is experienced on microscopic and macroscopic scales and is related to adhesion and sliding friction. Although important for most locomotive processes, the concepts of adhesion, stiction and sliding friction are often only empirically correlated. A more detailed understanding of these concepts will, for example, help to improve the design of increasingly smaller devices such as micro-and nanoelectromechanical switches. Here we show how stiction and adhesion are related for a liquid drop on a hexagonal boron nitride monolayer on rhodium, by measuring dynamic contact angles in two distinct states of the solid-liquid interface: a corrugated state in the absence of hydrogen intercalation and an intercalation-induced flat state. Stiction and adhesion can be reversibly switched by applying different electrochemical potentials to the sample, causing atomic hydrogen to be intercalated or not. We ascribe the change in adhesion to a change in lateral electric field of in-plane two-nanometre dipole rings, because it cannot be explained by the change in surface roughness known from the Wenzel model. Although the change in adhesion can be calculated for the system we study, it is not yet possible to determine the stiction at such a solid-liquid interface using ab initio methods. The inorganic hybrid of hexagonal boron nitride and rhodium is very stable and represents a new class of switchable surfaces with the potential for application in the study of adhesion, friction and lubrication. © 2016 Macmillan Publishers Limited.

KW - boron

KW - hydrogen

KW - rhodium

KW - boron derivative

KW - boron nitride

KW - adhesion

KW - electric field

KW - friction

KW - gas

KW - liquid

KW - lubricant

KW - solid

KW - surface roughness

KW - adsorption

KW - Article

KW - cell migration

KW - conformation

KW - contact angle

KW - desorption

KW - dipole

KW - electrowetting

KW - evaporation

KW - hydrogen bond

KW - hydrogen evolution

KW - hydrophobicity

KW - hysteresis

KW - lubrication

KW - microfluidics

KW - periodicity

KW - priority journal

KW - sliding friction

KW - solvation

KW - static electricity

KW - static friction

KW - surface area

KW - surface property

KW - animal

KW - chemistry

KW - electricity

KW - locomotion

KW - wettability

KW - Gekkonidae

KW - Adhesiveness

KW - Animals

KW - Boron Compounds

KW - Electricity

KW - Friction

KW - Hydrogen

KW - Locomotion

KW - Lubrication

KW - Rhodium

KW - Wettability

U2 - 10.1038/nature18275

DO - 10.1038/nature18275

M3 - Journal article

VL - 534

SP - 676

EP - 679

JO - Nature

JF - Nature

SN - 0028-0836

IS - 7609

ER -