Noncovalent interactions, which usually feature tunable strength, reversibility, and
environmental adaptability, have been recognized as driving forces in a variety of biological …

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 …

Introducing hydration layers to hydrogel microspheres (HMs) by coating the surface with
liposomes can effectively reduce friction. However, the lubrication can be inactivated when …

Softness plays a key role in determining the macroscopic properties of colloidal systems,
from synthetic nanogels to biological macromolecules, from viruses to star polymers …

Superlubricity, the state of ultralow friction between two sliding surfaces, has become a
frontier subject in tribology. Here, a state-of-the-art review of the phenomena and …

Asthma is characterized by mucus abnormalities. Airway epithelial hyperplasia and
metaplasia result in changes in stored and secreted mucin and the production of a …

In nature, living organisms evolve unique functional components with mechanically adaptive
compatibility to cater dynamic change of interface friction/lubrication. This mechanism can …

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 …

Polymer adhesion is ubiquitous in both the natural world and human technology. It is also a
complex multiscale phenomenon, such that the solution of adhesion problems requires a …

Polyelectrolyte complexation is critical to the formation and properties of many biological
and polymeric materials, and is typically initiated by aqueous mixing followed by fluid–fluid …