Healthy articular cartilage, covering the ends of bones in major joints such as hips and
knees, presents the most efficiently‐lubricated surface known in nature, with friction …

For several decades, high-density, end-tethered polymers, forming so-called polymer
brushes, have inspired scientists to understand their properties and to translate them to …

The major synovial joints such as hips and knees are uniquely efficient tribological systems,
able to articulate over a wide range of shear rates with a friction coefficient between the …

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 …

Friction is undoubtedly one of the most common yet intriguing physical phenomena
encountered in our daily lives. It would be impossible to play a stringed instrument or write …

The lubrication modification of biomedical devices significantly enhances the functionality of
implanted interventional medical devices, thereby providing additional benefits for patients …

This review provides an overview of recent advances that have been achieved in
understanding the basic physics of friction and energy dissipation in molecularly thin …

We present a paradigm that dramatically tunes friction from superior lubrication (μ∼ 10–3) to
ultrahigh friction (μ> 1) using responsive polyelectrolyte brushes. The tunable friction is …

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 …

The outstanding water wettability and the capability of polyelectrolyte surfaces to
spontaneously clean oil fouling are determined by their wetting mechanism in the …