Microswimmers are inanimate microparticles, but they move like moths to the light

Janus particles under the electron microscope. The titanium dioxide microswimmers are barely larger than one micrometer. Copyright: Simmchen Group The Freigeist group at TU Dresden, led by chemist Dr. Juliane Simmchen, has studied an impressive behavior of synthetic microswimmers: as soon as the photocatalytic particles leave an illuminated zone, they flip independently and swim back […]

Modelling microswimmers for drug delivery

Many types of motile cells, such as the bacteria in our guts and spermatozoa in the female reproductive tracts, need to propel themselves through confined spaces filled with viscous liquid. In recent years, the motion of these ‘microswimmers’ has been mimicked in the design of self-propelled micro- and nano-scale machines for applications including targeted drug […]