Light, matter, action: Shining light on active matter

M Rey, G Volpe, G Volpe - ACS photonics, 2023 - ACS Publications
Light carries energy and momentum. It can therefore alter the motion of objects on the
atomic to astronomical scales. Being widely available, readily controllable, and broadly …

Chiral active matter

B Liebchen, D Levis - Europhysics Letters, 2022 - iopscience.iop.org
Chiral active matter comprises particles which can self-propel and self-rotate. Examples
range from sperm cells and bacteria near walls to autophoretic L-shaped colloids. In this …

Torque‐driven orientation motion of chemotactic colloidal motors

C Zhou, C Gao, Y Wu, T Si, M Yang… - Angewandte Chemie …, 2022 - Wiley Online Library
We report a direct experimental observation of the torque‐driven active reorientation of
glucose‐fueled flasklike colloidal motors to a glucose gradient exhibiting a positive …

Entropy production of nonreciprocal interactions

Z Zhang, R Garcia-Millan - Physical Review Research, 2023 - APS
Nonreciprocal interactions are present in many systems out of equilibrium. The rate of
entropy production is a measure that quantifies the time irreversibility of a system, and thus …

Network effects lead to self-organization in metabolic cycles of self-repelling catalysts

V Ouazan-Reboul, R Golestanian, J Agudo-Canalejo - Physical Review Letters, 2023 - APS
Mixtures of particles that interact through phoretic effects are known to aggregate if they
belong to species that exhibit attractive self-interactions. We study self-organization in a …

Corneal endothelium assessment in specular microscopy images with Fuchs' dystrophy via deep regression of signed distance maps

JS Sierra, J Pineda, D Rueda, A Tello… - Biomedical optics …, 2022 - opg.optica.org
Specular microscopy assessment of the human corneal endothelium (CE) in Fuchs'
dystrophy is challenging due to the presence of dark image regions called guttae. This …

Collective behavior of active molecules: Dynamic clusters, holes, and active fractalytes

S Fehlinger, B Liebchen - Physical Review Research, 2023 - APS
Recent experiments have led to active colloidal molecules, which aggregate from nonmotile
building blocks and acquire self-propulsion through their nonreciprocal interactions. Here …

Non-Hermitian non-equipartition theory for trapped particles

X Li, Y Cao, J Ng - Nature Communications, 2024 - nature.com
The equipartition theorem is an elegant cornerstone theory of thermal and statistical physics.
However, it fails to address some contemporary problems, such as those associated with …

Spontaneous chiral symmetry breaking in a random driven chemical system

WD Piñeros, T Tlusty - Nature Communications, 2022 - nature.com
Living systems have evolved to efficiently consume available energy sources using an
elaborate circuitry of chemical reactions which, puzzlingly, bear a strict restriction to …

Non-Reciprocal Interactions Reshape Topological Defect Annihilation

Y Rouzaire, DJG Pearce, I Pagonabarraga… - arxiv preprint arxiv …, 2024 - arxiv.org
We show how non-reciprocal ferromagnetic interactions between neighbouring planar spins
in two dimensions, affect the behaviour of topological defects. Non-reciprocity is introduced …