ArticleRSC advances2019
Microparticle self-assembly induced by travelling surface acoustic waves.
Article in RSC advances, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Advancing Soft Mechanosensors by Colloidal Design.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- On-chip phased interdigital metamaterials enable versatile manipulation of surface acoustic waves, microfluids, and micro/nano-objects.Nature communications · 2025Article
- 3D Nanofabrication via Directed Material Assembly: Mechanism, Method, and Future.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Acoustic Waves Coupling with Polydimethylsiloxane in Reconfigurable Acoustofluidic Platform.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Core-Shell Particles: From Fabrication Methods to Diverse Manipulation Techniques.Micromachines · 2023Review
- A Perturbed Asymmetrical Y-TypeSheathless Chip for Particle Control Based on Adjustable Tilted-Angle Traveling Surface Acoustic Waves (ataTSAWs).Biosensors · 2022Article
- Acoustofluidics for simultaneous nanoparticle-based drug loading and exosome encapsulation.Microsystems & nanoengineering · 2022Article
- A simple acoustofluidic device for on-chip fabrication of PLGA nanoparticles.Biomicrofluidics · 2022Article
- Agglomeration of particles by a converging ultrasound field and their quantitative assessments.Ultrasonics sonochemistry · 2021Article
- Acoustofluidic multi-well plates for enrichment of micro/nano particles and cells.Lab on a chip · 2020Article
- Stability studies of ZnO and AlN thin film acoustic wave devices in acid and alkali harsh environments.RSC advances · 2020Article
- High Frequency Sonoprocessing: A New Field of Cavitation-Free Acoustic Materials Synthesis, Processing, and Manipulation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2020Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We present an acoustofluidic method based on travelling surface acoustic waves (TSAWs) to induce self-assembly of microparticles inside a microfluidic channel. The particles are trapped above an interdigitated transducer, placed directly beneath the microchannel, by the TSAW-based direct acoustic radiation force (ARF). This approach was applied to trap 10 μm polystyrene particles, which were pushed towards the ceiling of the microchannel by 72 MHz TSAWs to form single- and multiple-layer colloidal structures. The repair of cracks and defects within the crystal lattice occurs as part of the self-assembly process. The sample flow through the first inlet can be switched with a buffer flow through the second inlet to control the number of particles assembled in the crystalline structure. The constant flow-induced Stokes drag force on the particles is balanced by the opposing TSAW-based ARF. This force balance is essential for the acoustics-based self-assembly of microparticles inside the microchannel. Moreover, we studied the effects of varying input voltage and fluid flow rate on the position and shape of the colloidal structure. The active self-assembly of microparticles into crystals with multiple layers can be used in the bottom-up fabrication of colloidal structures with dimensions greater than 500 μm × 500 μm, which is expected to have important applications in various fields.
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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.