Minimal numerical ingredients describe chemical microswimmers'3-D motion

MR Bailey, CMB Gutiérrez, J Martín-Roca, V Niggel… - Nanoscale, 2024 - pubs.rsc.org
The underlying mechanisms and physics of catalytic Janus microswimmers is highly
complex, requiring details of the associated phoretic fields and the physiochemical …

[HTML][HTML] Decoupling of rotation and translation at the colloidal glass transition

J Geiger, N Grimm, M Fuchs… - The Journal of Chemical …, 2024 - pubs.aip.org
In dense particle systems, the coupling of rotation and translation motion becomes intricate.
Here, we report the results of confocal fluorescence microscopy where simultaneous …

Simulation and time series analysis of responsive active Brownian particles (rABPs) with memory

MR Bailey, F Grillo, L Isa - Journal of Physics: Condensed Matter, 2024 - iopscience.iop.org
To realise the goals of active matter at the micro-and nano-scale, the next generation of
microrobots must be capable of autonomously sensing and responding to their environment …

Measuring Rolling Friction at the Nanoscale

S Scherrer, SN Ramakrishna, V Niggel, ND Spencer… - Langmuir, 2024 - ACS Publications
Colloidal probe microscopy, a technique whereby a microparticle is affixed at the end of an
atomic force microscopy (AFM) cantilever, plays a pivotal role in enabling the measurement …

Rotational diffusion of colloidal microspheres near flat walls

V Carrasco-Fadanelli, Y Mao, T Nakakomi, H Xu… - Soft Matter, 2024 - pubs.rsc.org
Recently, colloids with an off-center fluorescent core and homogeneous composition have
been developed to measure the rotational diffusivity of microparticles using 3D confocal …

Is it Possible to Detect a Rotating Spherical Colloidal Particle?

O Emile, J Emile - Advanced Photonics Research, 2024 - Wiley Online Library
A single micrometer‐size spherical colloid has been set in rotation by transfer of light orbital
angular momentum. This particle is floating at an air–water interface. Steady‐state rotational …

Sliding or Rolling? Characterizing single-particle contacts

S Scherrer, SN Ramakrishna, V Niggel, CP Hsu… - arxiv preprint arxiv …, 2024 - arxiv.org
Contacts between particles in dense, sheared suspensions are believed to underpin much
of their rheology. Roughness and adhesion are known to constrain the relative motion of …