Dynamically reconfigurable acoustofluidic metasurface for subwavelength particle manipulation and assembly

Dynamically reconfigurable acoustofluidic metasurface for subwavelength particle manipulation and assembly

Blog Article

Abstract Particle manipulation plays a pivotal role in scientific and technological domains such as materials science, physics, and the Nutritional Food Supplements life sciences.Here, we present a dynamically reconfigurable acoustofluidic metasurface that enables precise trapping and positioning of microscale particles in fluidic environments.By harnessing acoustic-structure interaction in a passive membrane resonator array, we generate localized standing acoustic waves that can be reconfigured in real-time.

The resulting radiation force allows for subwavelength manipulation and patterning of particles on the metasurface at individual and collective scales, with actuation frequencies below 2 MHz.We further demonstrate the capabilities of the reconfigurable metasurface in trapping and enriching beads and biological cells flowing in microfluidic channels, showcasing its potential in high-throughput bioanalytical applications.Our versatile and biocompatible particle manipulation platform is suitable for applications ranging from the assembly French Door of colloidal particles to enrichment of rare cells.