Load-dependent surface nanomechanical properties of poly-HEMA hydrogels in aqueous medium

Author:

Li Gen12345ORCID,Dobryden Illia12345ORCID,Salazar-Sandoval Eric Johansson6789,Johansson Mats1231011ORCID,Claesson Per M.12345ORCID

Affiliation:

1. KTH Royal Institute of Technology

2. School of Engineering Sciences in Chemistry

3. Biotechnology and Health

4. Department of Chemistry

5. Division of Surface and Corrosion Science

6. RISE Research Institutes of Sweden

7. Division of Bioscience and Materials

8. SE 114 86 Stockholm

9. Sweden

10. Department of Fibre & Polymer Technology

11. SE 10044 Stockholm

Abstract

The combined action of load and shear results in the formation of a temporary sub-micrometer hill in front of the tip. As the tip pushes against such hills, a pronounced stick-slip effect is observed for the hydrogel with low cross-linking density.

Funder

China Scholarship Council

Kungliga Tekniska Högskolan

Publisher

Royal Society of Chemistry (RSC)

Subject

Condensed Matter Physics,General Chemistry

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