Acoustic lateral recoil force and stable lift of anisotropic particles
Mikhail Smagin, Ivan Toftul, Konstantin Y. Bliokh, Mihail Petrov
Abstract
Acoustic manipulation of small particles is important for various applications, particularly in the life sciences, yet understanding higher-order acoustic forces and torques on larger, nonspherical particles has remained unexplored. This work reveals two interesting phenomena: a lateral acoustic recoil force, and a stable acoustic lift for an anisotropically shaped particle in a sound-wave field. The authors' discovery offers fresh functionalities for acoustic manipulation and sorting of anisotropic particles, including biomolecules and cells.
Topics & Concepts
RecoilLift (data mining)AnisotropyPhysicsAcousticsAcoustic waveAcoustic levitationPhysical acousticsMechanicsOpticsMagnetComputer scienceAtomic physicsData miningQuantum mechanicsLevitationMicrofluidic and Bio-sensing TechnologiesOrbital Angular Momentum in OpticsElectrostatics and Colloid Interactions