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Polymers 2018, 10(9), 978;

Nanomechanics and Nanorheology of Microgels at Interfaces

Stranski-Laboratorium für Physikalische und Theoretische Chemie, Technische Universität Berlin, Strasse des 17. Juni 124, D–10623 Berlin, Germany
Soft Matter at Interfaces, Department of Physics, TU Darmstadt, Alarich-Weiss-Strasse 10, D–62487 Darmstadt, Germany
Author to whom correspondence should be addressed.
Received: 30 July 2018 / Revised: 19 August 2018 / Accepted: 20 August 2018 / Published: 3 September 2018
(This article belongs to the Special Issue Microgels and Hydrogels at Interfaces)
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The review addresses nanomechanics and nanorheology of stimuli responsive microgels adsorbed at an interface. In order to measure the mechanical properties on a local scale, an atomic force microscope is used. The tip presents an indenter with a radius of curvature of a few 10 s of nm. Static indentation experiments and dynamic studies with an excited cantilever are presented. The effect of several internal and external parameters on the mechanical properties is reviewed. The focus is on the correlation between the swelling abilities of the gels and their mechanical properties. Several results are surprising and show that the relationship is not as simple as one might expect. View Full-Text
Keywords: swelling ability; nanomechanics; nanorheology; stimuli-sensitive gels; microgels; hydrogels swelling ability; nanomechanics; nanorheology; stimuli-sensitive gels; microgels; hydrogels

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Backes, S.; von Klitzing, R. Nanomechanics and Nanorheology of Microgels at Interfaces. Polymers 2018, 10, 978.

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