Microrheology was proposed almost twenty years ago as a technique to obtain rheological
properties in soft matter from the microscopic motion of colloidal tracers used as probes …

We experimentally investigate active motion of spherical Janus colloidal particles in a
viscoelastic fluid. Self-propulsion is achieved by a local concentration gradient of a critical …

We experimentally study the motion of light-activated colloidal microswimmers in a
viscoelastic fluid. We find that, in such a non-Newtonian environment, the active colloids …

Particle-tracking microrheology (PT-μ r) exploits the thermal motion of embedded particles to
probe the local mechanical properties of soft materials. Despite its appealing conceptual …

We record dark-field scattering bursts of individual gold nanorods, 52× 15 nm2 in average
size, freely diffusing in water suspension. We deduce their Brownian rotational diffusion …

We discuss a new method for simultaneously probing translational, rotational, and
vibrational dynamics in dilute colloidal suspensions using digital holographic microscopy …

The complex rotational and translational Brownian motion of anisotropic particles depends
on their shape and the viscoelasticity of their surroundings. Because of their strong optical …

Important aspects in the field of microrheology are studies of the viscosity of fluids within
structures with micrometer dimensions and fluid samples where only microliter volumes are …

We analyze the rotational dynamics of spherical colloidal Janus particles made from silica
(SiO2) with a hemispherical gold/palladium (Au/Pd) cap. Since the refractive index …

Polymer network gels usually exhibit spatial heterogeneity of local defects and cross-link
density, which can affect their elasticity on the microscopic scale differently. The ability to …