Active colloids use energy input at the particle level to propel persistent motion and direct
dynamic assemblies. We consider three types of colloids animated by chemical reactions …

Progress in optical manipulation has stimulated remarkable advances in a wide range of
fields, including materials science, robotics, medical engineering, and nanotechnology. This …

Diffusiophoresis is the spontaneous motion of particles under a concentration gradient of
solutes. Since the first recognition by Derjaguin and colleagues in 1947 in the form of …

Chemically powered nano-and micromotors are microscopic devices that convert chemical
energy into motion. Interest in these motors has grown over the past 20 years because they …

Osmosis is a universal phenomenon occurring in a broad variety of processes and fields. It
is the archetype of entropic forces, both trivial in its fundamental expression–the van't Hoff …

This review focuses on experimental work on nonlinear phenomena in microfluidics, which
for the most part are phenomena for which the velocity of a fluid flowing through a …

Research on sintering of dense ceramic materials has been very active in the past decades
and still keeps gaining in popularity. Although a number of new techniques have been …

The ability to sense chemical gradients and respond with directional motility and chemical
activity is a defining feature of complex living systems. There is a strong interest among …

The ability of cells or cell components to move in response to chemical signals is critical for
the survival of living systems. This motion arises from harnessing free energy from enzymatic …

This manuscript describes, defines, and discusses the process of cold sintering, which can
consolidate a broad set of inorganic powders between room temperature and 300° C using …