Surface-initiated controlled radical polymerization: state-of-the-art, opportunities, and challenges in surface and interface engineering with polymer brushes
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-
CRP) techniques has become a powerful approach to tailor the chemical and physical …
CRP) techniques has become a powerful approach to tailor the chemical and physical …
Hydration lubrication
J Klein - Friction, 2013 - Springer
The hydration lubrication paradigm, whereby hydration layers are both strongly held by the
charges they surround, and so can support large pressures without being squeezed out, and …
charges they surround, and so can support large pressures without being squeezed out, and …
High lubricity meets load capacity: cartilage mimicking bilayer structure by brushing up stiff hydrogels from subsurface
M Rong, H Liu, M Scaraggi, Y Bai, L Bao… - Advanced Functional …, 2020 - Wiley Online Library
Natural articular cartilage has ultralow friction even at high squeezing pressure.
Biomimicking cartilage with soft materials has been and remains a grand challenge in the …
Biomimicking cartilage with soft materials has been and remains a grand challenge in the …
Lubrication at physiological pressures by polyzwitterionic brushes
M Chen, WH Briscoe, SP Armes, J Klein - science, 2009 - science.org
The very low sliding friction at natural synovial joints, which have friction coefficients of μ<
0.002 at pressures up to 5 megapascals or more, has to date not been attained in any …
0.002 at pressures up to 5 megapascals or more, has to date not been attained in any …
Measurement of lateral adhesion forces at the interface between a liquid drop and a substrate
A novel instrument allows for the first time measurements of the lateral adhesion forces at a
solid-liquid interface, f∥, in a way that is decoupled from the normal forces, f⊥. We use it to …
solid-liquid interface, f∥, in a way that is decoupled from the normal forces, f⊥. We use it to …
Polymer-brush lubrication: a review of recent theoretical advances
T Kreer - Soft Matter, 2016 - pubs.rsc.org
This review compiles recent theoretical advances to describe compressive and shear forces
of polymer-brush bilayers, which consist of two opposing brushes in contact. Such model …
of polymer-brush bilayers, which consist of two opposing brushes in contact. Such model …
Hydration lubrication: the macromolecular domain
S Jahn, J Klein - Macromolecules, 2015 - ACS Publications
Macromolecules, which adsorb or intrinsically form boundary layers at surfaces sliding past
each other in aqueous media, are ubiquitous both in technology and in biological systems …
each other in aqueous media, are ubiquitous both in technology and in biological systems …
Molecular mechanisms of synovial joint lubrication
J Klein - Proceedings of the Institution of Mechanical …, 2006 - journals.sagepub.com
Current models for lubrication of synovial joints, and the nature of the cartilage surface, are
briefly recalled. Direct friction studies between polymers attached to surfaces are then …
briefly recalled. Direct friction studies between polymers attached to surfaces are then …
Physics and applications of superhydrophobic and superhydrophilic surfaces and coatings
The terms superhydrophobicity and superhydrophilicity were introduced not very long ago,
in 1996 and 2000, respectively. The former is used to describe exceptionally weak and the …
in 1996 and 2000, respectively. The former is used to describe exceptionally weak and the …