We present chirality-tunable acoustic vortex tweezers that can tune acoustic vortex chirality, transmit through biological barriers, trap single micro- to millimeter-sized objects, and control object rotation.
Trapping and controllable rotation of a particle
Trapping of an object with a thick tissue barrier
Translation of an object to write the letters ‘VT’ in a horizontal plane
Trapping of an object with a skull barrier
Translation of an object to write the letters ‘VT’ in a vertical plane
Translation of an object in a biomimetic phantom with a branched channel
Translation of an object along a complex 3D helical path
Demonstration of ultrasound imaging-assisted acoustic manipulation
Translation of a micro-particle to write high-resolution letters ‘VT’
We introduce a novel acoustic vortex tweezers system, which leverages a unique airborne acoustic vortex end effector integrated with a three-degree-of-freedom (DoF) linear motion stage, for enabling contactless, multi-mode, programmable manipulation of millimeter-sized objects.
Trapping and repelling particles floating on water
Rotating single particles floating on water
Translating a droplet containing a zebrafish larva to write letters 'VT'
Rotating a droplet containing a zebrafish
Object surfing to write the letters 'VT'
Merging two droplets
Object surfing following a spiral trajectory
Trapping and translating droplets with different volumes
Guiding particles through a maze
We presents an acoustic vortex tweezers platform that enables contactless, precise, multi-DoF, and multifunctional manipulation of micro-to-millimeter-scale objects within a Petri dish.
Translating a cluster of cells
Particle aggregation enabled by shrinking an acoustic potential well
Trapping and translating a microparticle
Trapping and translating a zebrafish larva in a horizontal posture
Trapping flowing microparticles to gradually create a particle cluster
Trapping and translating a zebrafish larva in a vertical posture
Translating a particle cluster
Rotating a zebrafish larva for taking images from different angles
Concentrating cells