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DOI: 10.4121/0a058f2f-09ce-4637-a22f-d30789c35ccd

Melio, Julio; Riedel, Solenn; Azadbakht, A.; Caipa Cure, S. A.; Evers, T. M. J. et. al. (2025): Raw data underlying the publication: 'The Motion Of Catalytically Active Colloids Approaching A Surface'. Version 1. 4TU.ResearchData. dataset. https://doi.org/10.4121/0a058f2f-09ce-4637-a22f-d30789c35ccd.v1

Categories

• Condensed Matter Physics
• Physical Sciences

Keywords

active matter catalytic microswimmers colloids ionic effects on propulsion Janus spheres near-wall hydrodynamic mobility

Licence

CC BY-NC 4.0

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by J. Melio , S. Riedel, A. Azadbakht , S. A. Caipa Cure , T. M. J. Evers , M. Babaei , A. Mashaghi , J. de Graaf, D. J. Kraft

We looked at the motion of catalytically active particles and studied the influence of salt concentration on the motion for colloids moving at different separation distances from a wall. This dataset consist of the particle traces (polystyrene of 4.5 micron in diameter, half-coated with 5 nm Pt/Pd) separated in three main folders.

• 'microscope_without_acoustic_tweezers' consists of particle traces of 2D experiments, where the particles sedimented and moved parallel to the substrate. The different subfolders specify the fuel concentration (hydrogen peroxide) and the salt concentration (sodium chloride).
• 'microscope_with_acoustic_tweezers' consists of particle traces of 3D experiments, where the particles where lifted using acoustic tweezers and propelled in 3D.
• 'microscope_with_tilted_stage' consists of particle traces of 2D experiments, where the particles moved on a tilted substrate (the subfolders indicate the tilt angle with respect to the horizontal).

History

• 2025-03-13 first online, published, posted

Publisher

4TU.ResearchData

Format

comma separated values files/.csv

Associated peer-reviewed publication

The motion of catalytically active colloids approaching a surface

Organizations

Leiden University, Huygens-Kamerlingh Onnes Laboratory
Leiden University, Faculty of Science, Leiden Academic Centre for Drug Research, Medical Systems Biophysics and Bioengineering
Utrecht University, , Center for Extreme Matter and Emergent Phenomena, Institute for Theoretical Physics