ArticleProceedings of the National Academy of Sciences of the United States of America2023
Self-propelling colloids with finite state dynamics.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Reconfigurable assembly, disassembly, and self-propulsion of microparticles via optoelectronic tweezers.Microsystems & nanoengineering · 2026Article
- Life-like behavior emerging in active and flexible microstructures.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Controlling spatial structure in minimal microbial communities by sequential capillary assembly.Lab on a chip · 2026Article
- Dual-Laser Optical Tweezers for Photothermal Analysis of Hybrid Microgels.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Shape-morphing active particles with invertible effective polarizability for configurable locomotion and steering.Nature communications · 2026Article
- Density Modulations in Active Colloidal Systems through Orthogonal Propulsion Control and Sensory Delays.ACS nano · 2025Article
- Article
- 3D observational analysis of convection around and inside a self-propelled droplet.RSC advances · 2025Article
- Frozen by Heating: Temperature Controlled Dynamic States in Droplet Microswimmers.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- The 2025 motile active matter roadmap.Journal of physics. Condensed matter : an Institute of Physics journal · 2025Review
- The carnivorous plantProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Bio-inspired micropatterned thermochromic hydrogel for concurrent smart solar transmission and rapid visible-light stealth at all-working temperatures.Light, science & applications · 2024Article
- Article
- Light, Matter, Action: Shining Light on Active Matter.ACS photonics · 2023Review
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Endowing materials with the ability to sense, adapt, and respond to stimuli holds the key to a progress leap in autonomous systems. In spite of the growing success of macroscopic soft robotic devices, transferring these concepts to the microscale presents several challenges connected to the lack of suitable fabrication and design techniques and of internal response schemes that connect the materials' properties to the function of the active units. Here, we realize self-propelling colloidal clusters which possess a finite number of internal states, which define their motility and which are connected by reversible transitions. We produce these units via capillary assembly combining hard polystyrene colloids with two different types of thermoresponsive microgels. The clusters, actuated by spatially uniform AC electric fields, adapt their shape and dielectric properties, and consequently their propulsion, via reversible temperature-induced transitions controlled by light. The different transition temperatures for the two microgels enable three distinct dynamical states corresponding to three illumination intensity levels. The sequential reconfiguration of the microgels affects the velocity and shape of the active trajectories according to a pathway defined by tailoring the clusters' geometry during assembly. The demonstration of these simple systems indicates an exciting route toward building more complex units with broader reconfiguration schemes and multiple responses as a step forward in the pursuit of adaptive autonomous systems at the colloidal scale.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.