Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations

A Ulcinas; G Valdre; V Snitka; M.J Miles; PM Claesson; M Antognozzi

doi:10.1021/la2021897

Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations

A Ulcinas, G Valdre, V Snitka, M.J Miles, PM Claesson, M Antognozzi

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

28 Citations (Scopus)

Abstract

By monitoring the thermal noise of a vertically oriented micromechanical force sensor, we detect the viscoelastic response to shear for water in a subnanometer confinement. Measurements in pure water as well as under acidic and high-ionic-strength conditions relate this response to the effect of surface-adsorbed cations, which, because of their hydration, act as pinning centers restricting the mobility of the confined water molecules.

Translated title of the contribution	Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations
Original language	English
Pages (from-to)	10351 - 10355
Number of pages	5
Journal	Langmuir
Volume	27
Issue number	17
DOIs	https://doi.org/10.1021/la2021897
Publication status	Published - Jan 2011

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Publisher: American Chemical Society

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http://pubs.acs.org/doi/abs/10.1021/la2021897

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abstract = "By monitoring the thermal noise of a vertically oriented micromechanical force sensor, we detect the viscoelastic response to shear for water in a subnanometer confinement. Measurements in pure water as well as under acidic and high-ionic-strength conditions relate this response to the effect of surface-adsorbed cations, which, because of their hydration, act as pinning centers restricting the mobility of the confined water molecules.",

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AU - Claesson, PM

AU - Antognozzi, M

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AB - By monitoring the thermal noise of a vertically oriented micromechanical force sensor, we detect the viscoelastic response to shear for water in a subnanometer confinement. Measurements in pure water as well as under acidic and high-ionic-strength conditions relate this response to the effect of surface-adsorbed cations, which, because of their hydration, act as pinning centers restricting the mobility of the confined water molecules.

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Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations

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ULTRA HIGH SPEEDS NON-CONTACT FORCE MICROSCOPY

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Shear Response of Nanoconfined Water on Muscovite Mica: Role of Cations

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ULTRA HIGH SPEEDS NON-CONTACT FORCE MICROSCOPY

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