The ocular lubrication, where the eyelid constantly slides on the curved corneal surface, is
considered as one of primary lubrication systems in bio-tribology. Under reliable lubrication …

Hydrogels consist of a cross-linked polymer matrix imbibed with a solvent such as water at
volume fractions that can exceed 90%. They are important in many scientific and …

The mechanical and tribological responses of cartilage depend strongly on its hydration
state, which is a function of the mechanical and tribological conditions of the contact. The …

Poly [2-(methacryloyloxy) ethylphosphorylcholine](pMPC) brushes provide extremely low
friction coefficients up to high compressions, but their use as boundary lubricating layers is …

Hydrogel surfaces are biomimics for sensing and mobility systems in the body such as the
eyes and large joints due to their important characteristics of flexibility, permeability, and …

Hydrogels are suggested as less invasive alternatives to total joint replacements, but their
inferior tribological performance compared to articular cartilage remains a barrier to …

Swollen, surface‐attached hydrogel layers in sliding contact exhibit unusual friction
properties. To study this phenomenon, hydrogel layers covalently bonded to solid substrates …

The strain change of double network (DN) hydrogels during compressive mechanical and
frictional tests is crucial for their performances. The positive effect of the sacrificed network …

Solid–liquid interactions are ubiquitous phenomena in nature and industry. Wettability of a
liquid on a solid is governed by the chemical heterogeneity and physical roughness of the …

Cross-linked hydrogel surfaces exhibit reduced stiffness when polymerized against
polymeric hydrophobic surfaces. As such, these layers play a critical role in contact …