The statistical physics of active matter: From self-catalytic colloids to living cells

@article{Fodor2018TheSP,
  title={The statistical physics of active matter: From self-catalytic colloids to living cells},
  author={'Etienne Fodor and M. Cristina Marchetti},
  journal={Physica A: Statistical Mechanics and its Applications},
  year={2018}
}
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Quantifying the non-equilibrium activity of an active colloid.
TLDR
This work focuses on characterizing the transition from thermal to non-thermal fluctuations and shows that energy dissipation rates on the order of ∼kBT s-1 are measurable from finite time series data.
Photo-bioconvection: towards light control of flows in active suspensions
TLDR
The current state, developments and some of the emerging advances in the fundamentals and applications of light-induced bioconvection are discussed, with a focus on recent experimental realizations and modelling efforts.
Mesoscopic non-equilibrium measures can reveal intrinsic features of the active driving.
TLDR
This work addresses the question of can one extract information on the nature of the active driving in a system from the analysis of a two-point non-equilibrium measure, theoretically in the context of a class of elastic systems, driven out of equilibrium by a spatially heterogeneous stochastic internal driving.
Modeling chemo-hydrodynamic interactions of phoretic particles: A unified framework
Phoretic particles exploit local self-generated physico-chemical gradients to achieve self-propulsion at the micron scale. The collective dynamics of a large number of such particles is currently the…
Statistical Mechanics of Self-Propelled Systems
TLDR
The non-equilibrium aggregation phases of Active Matter reveal intriguing new features in the presence of an effective alignment interaction induced by the interplay between self-propulsion and excluded volume effects.
Active phase separation by turning towards regions of higher density
Studies of active matter, from molecular assemblies to animal groups, have revealed two broad classes of behaviour: a tendency to align yields orientational order and collective motion, whereas…
Total synthesis of colloidal matter
Atoms serve as an inspiration for colloidal self-assembly, whereby building blocks can combine and confer endless functionality using a few design principles, including directionality, valence and…
Extracting maximum power from active colloidal heat engines
Colloidal heat engines extract power out of a fluctuating bath by manipulating a confined tracer. Considering a self-propelled tracer surrounded by a bath of passive colloids, we optimize the engine…
Driven probe under harmonic confinement in a colloidal bath
Colloids held by optical or magnetic tweezers have been used to explore the local rheological properties of a complex medium and to extract work from fluctuations with some appropriate protocols.…
Non-equilibrium scaling behavior in stochastically driven biological assemblies
TLDR
A more recent approach to detect actively driven dynamics, which is based on inferring broken detailed balance constitutes a non-invasive method that uses time-lapse microscopy data, and can be applied to a broad range of systems in cells and tissue.
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References

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A form of self-organization from nonequilibrium driving forces in a suspension of synthetic photoactivated colloidal particles is demonstrated, which leads to two-dimensional "living crystals," which form, break, explode, and re-form elsewhere.
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It is shown that asymmetric environments can produce a spontaneous and unidirectional rotation of nanofabricated objects immersed in an active bacterial bath and highlights the technological implications of active matter’s ability to overcome the restrictions imposed by the second law of thermodynamics on equilibrium passive fluids.
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TLDR
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Emergence of macroscopic directed motion in populations of motile colloids
TLDR
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TLDR
It is shown that in this case the thermally active colloidal solution could undergo an instability at a critical laser intensity, which has similarities to a supernova explosion.
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