Opendata, web and dolomites


Active Suspensions with Controlled Interaction Rules

Total Cost €


EC-Contrib. €






Project "ASCIR" data sheet

The following table provides information about the project.


Organization address
postcode: 78464

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙036˙750 €
 EC max contribution 2˙036˙750 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-AdG
 Funding Scheme ERC-ADG
 Starting year 2016
 Duration (year-month-day) from 2016-10-01   to  2021-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT KONSTANZ DE (KONSTANZ) coordinator 1˙824˙735.00
2    UNIVERSITAET STUTTGART DE (STUTTGART) participant 212˙014.00


 Project objective

Self-propelling, i.e., active colloidal particles constitute a novel class of non-equilibrium systems which exhibit structural and dynamical features similar to those in assemblies of bacteria or other motile organisms. Due to their reduced complexity, they provide an intriguing chance to understand the formation of dynamical structures in non-equilibrium systems in unprecedented detail. A central question in this rapidly growing field is, how interaction-rules determine the creation of e.g. swarms or complex networks. In addition to ordinary inter particle and hydrodynamic forces, interaction-rules can be much more complex. For example, they can regulate the particle motility depending on their relative orientation, their local density or otherwise distinct particle configurations. Here, we propose an experimental approach which aims towards controlling the amplitude and direction of the particle’s motility in dense active suspensions on a single particle level. Particle-propulsion is achieved by a light-activated diffusiophoretic mechanism, where the particle motility is controlled by an incident light field. By means of an acoustic-optical modulator and a feed-back loop, we create dynamical and spatially-resolved light fields which depend on the current configuration of active particles and user-defined interaction rules. Because these rules are imposed externally and not by internal forces, this permits the experimental realization of a wide range of rules (linear, non-linear, and even non-reciprocal) in dense, two-dimensional active systems. We expect, that the experimental realization of user-defined interaction-rules largely extends our understanding how active matter can organize in dynamical structures. In addition, the perspective of enhanced control of active particles, as suggested within this proposal, will be of considerable importance for their use as autonomous micro robots which will deliver payloads in liquid environments.


year authors and title journal last update
List of publications.
2019 Celia Lozano, Clemens Bechinger
Diffusing wave paradox of phototactic particles in traveling light pulses
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-10535-z
Nature Communications 10/1 2019-08-05
2018 Celia Lozano, Juan Ruben Gomez-Solano, Clemens Bechinger
Run-and-tumble-like motion of active colloids in viscoelastic media
published pages: 15008, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aa9ed1
New Journal of Physics 20/1 2019-08-05
2019 François A. Lavergne, Hugo Wendehenne, Tobias Bäuerle, Clemens Bechinger
Group formation and cohesion of active particles with visual perception–dependent motility
published pages: 70-74, ISSN: 0036-8075, DOI: 10.1126/science.aau5347
Science 364/6435 2019-08-05
2018 N Narinder, Clemens Bechinger, Juan Ruben Gomez-Solano
Memory-Induced Transition from a Persistent Random Walk to Circular Motion for Achiral Microswimmers
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.078003
Physical Review Letters 121/7 2019-08-05
2018 Johannes Berner, Boris Müller, Juan Ruben Gomez-Solano, Matthias Krüger, Clemens Bechinger
Oscillating modes of driven colloids in overdamped systems
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-03345-2
Nature Communications 9/1 2019-08-05
2019 Soudeh Jahanshahi, Celia Lozano, Borge ten Hagen, Clemens Bechinger, Hartmut Löwen
Colloidal Brazil nut effect in microswimmer mixtures induced by motility contrast
published pages: 114902, ISSN: 0021-9606, DOI: 10.1063/1.5083098
The Journal of Chemical Physics 150/11 2019-08-05
2017 Juan Ruben Gomez-Solano, Sela Samin, Celia Lozano, Pablo Ruedas-Batuecas, René van Roij, Clemens Bechinger
Tuning the motility and directionality of self-propelled colloids
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-017-14126-0
Scientific Reports 7/1 2019-08-05
2018 Tobias Bäuerle, Andreas Fischer, Thomas Speck, Clemens Bechinger
Self-organization of active particles by quorum sensing rules
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-018-05675-7
Nature Communications 9/1 2019-08-05

Are you the coordinator (or a participant) of this project? Plaese send me more information about the "ASCIR" project.

For instance: the website url (it has not provided by EU-opendata yet), the logo, a more detailed description of the project (in plain text as a rtf file or a word file), some pictures (as picture files, not embedded into any word file), twitter account, linkedin page, etc.

Send me an  email ( and I put them in your project's page as son as possible.

Thanks. And then put a link of this page into your project's website.

The information about "ASCIR" are provided by the European Opendata Portal: CORDIS opendata.

More projects from the same programme (H2020-EU.1.1.)


The Enemy of the Good: Towards a Theory of Moral Progress

Read More  

Photopharm (2020)

Photopharmacology: From Academia toward the Clinic.

Read More  


The Mass Politics of Disintegration

Read More