A few years after the invention of the scanning tunneling microscope (STM), the atomic force
microscope (AFM) was developed. 1 Instead of measuring tunneling current, a new physical …

As the size of electronic and mechanical devices shrinks to the nanometre regime,
performance begins to be dominated by surface forces. For example, friction, wear and …

Surface roughness affects many properties of colloids, from depletion and capillary
interactions to their dispersibility and use as emulsion stabilizers. It also impacts particle …

A tactile sensor system enables natural interaction between humans and machines; this
interaction is crucial for dexterous robotic hands, interactive entertainment, and other smart …

Most geckos can rapidly attach and detach from almost any kind of surface. This ability is
attributed to the hierarchical structure of their feet (involving toe pads, setal arrays, and …

Stick-slip friction was observed in articular cartilage under certain loading and sliding
conditions and systematically studied. Using the Surface Forces Apparatus, we show that …

In this chapter, we describe the static and dynamic normal forces that occur between
surfaces in vacuum or liquids and the different modes of friction that can be observed …

This study investigates the effects of interfacial wear characteristics on stick-slip vibration
under different normal loads. The results reveal that the amplitude and frequency of stick-slip …

Structural superlubricity, which promises an ultralow sliding friction due to the cancellation of
the lateral force between two incommensurate interfaces, is a fundamental phenomenon in …

This article describes the surface properties of fluorinated oxetane polyol (F-Polyol)
containing linear segmented polyurethane elastomers. A series of polyurethane elastomers …