Physical properties of water near a gold surface: a nanorheological analysis

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
David M SoaresWyllerson E Gomes

Abstract

Water at room temperature is not simply a medium for which uniform properties can always be assumed. Water close to solid hydrophobic or hydrophilic surfaces has elasticity, which is measured by monitoring the quartz crystal microbalance (QCM) resonant frequency and resistance. Small additions of salt are shown to modify this elasticity. Furthermore, near the hydrophobic QCM gold electrode, undersaturated aqueous NaCl solutions present a high concentration of ion pairs, which is confirmed by atomic force microscopy through force versus distance measurements.

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Citations

Jan 17, 2016·Nanomedicine : Nanotechnology, Biology, and Medicine·Janine BrodaWolfgang Wenzel
Aug 18, 2012·Journal of Molecular Recognition : JMR·Robert E Speight, Matthew A Cooper
Jun 6, 2013·The Journal of Physical Chemistry Letters·Shalaka DewanEric Borguet
Feb 19, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Srabani GhoshRupa Mukhopadhyay
Sep 21, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Torsten JohnLisandra L Martin

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