ArticleThe journal of physical chemistry. B2021
Fabrication and Electric Field-Driven Active Propulsion of Patchy Microellipsoids.
Article in The journal of physical chemistry. B, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Field-Driven Active Colloids as Distributed Micromachines: Bridging Physics, Control, and Function Across Length Scales.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Shape-morphing active particles with invertible effective polarizability for configurable locomotion and steering.Nature communications · 2026Article
- pH-tuned reversible self-assembly of Janus particles for enhanced Raman imaging and sensing.Analytical and bioanalytical chemistry · 2025Article
- Precise surface patches on active particles of arbitrary shape through microstenciling.Nature communications · 2025Article
- Transverse Self-Propulsion Enhances the Aggregation of Active Dumbbells.Entropy (Basel, Switzerland) · 2025Article
- Non-Reciprocity, Metastability, and Dynamic Reconfiguration in Co-Assembly of Active and Passive Particles.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Selective Vapor Condensation for the Synthesis and Assembly of Spherical Colloids with a Precise Rough Patch.JACS Au · 2024Article
- Magnetically locked Janus particle clusters with orientation-dependent motion in AC electric fields.Nanoscale · 2023Article
- Microrobots powered by concentration polarization electrophoresis (CPEP).Nature communications · 2023Article
- Synthesis of magnetic electroactive nanomotors based on sodium alginate/chitosan and investigation the influence of the external electric field on the mechanism of locomotion.Scientific reports · 2023Article
- Electrokinetic Active Particles for Motion-Based Biomolecule Detection.Nano letters · 2023Article
- Achieving Control in Micro-/Nanomotor Mobility.Angewandte Chemie (International ed. in English) · 2023Review
- Field-Induced Assembly and Propulsion of Colloids.Langmuir : the ACS journal of surfaces and colloids · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Active colloids are a synthetic analogue of biological microorganisms that consume external energy to swim through viscous fluids. Such motion requires breaking the symmetry of the fluid flow in the vicinity of a particle; however, it is challenging to understand how surface and shape anisotropies of the colloid lead to a particular trajectory. Here, we attempt to deconvolute the effects of particle shape and surface anisotropy on the propulsion of model ellipsoids in alternating current (AC) electric fields. We first introduce a simple process for depositing metal patches of various shapes on the surfaces of ellipsoidal particles. We show that the shape of the metal patch is governed by the assembled structure of the ellipsoids on the substrate used for physical vapor deposition. Under high-frequency AC electric field, ellipsoids dispersed in water show linear, circular, and helical trajectories which depend on the shapes of the surface patches. We demonstrate that features of the helical trajectories such as the pitch and diameter can be tuned by varying the degree of patch asymmetry along the two primary axes of the ellipsoids, namely longitudinal and transverse. Our study reveals the role of patch shape on the trajectory of ellipsoidal particles propelled by induced charge electrophoresis. We develop heuristics based on patch asymmetries that can be used to design patchy particles with specified nonlinear trajectories.
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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.