English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Conference Paper

Acoustofluidic tweezers for the 3D manipulation of microparticles

MPS-Authors
/persons/resource/persons75462

Fischer,  Peer       
Max Planck Institute for Medical Research, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Guo, X., Ma, Z., Goyal, R., Jeong, M.-K., Pang, W., Fischer, P., et al. (2020). Acoustofluidic tweezers for the 3D manipulation of microparticles. In 2020 IEEE International Conference on Robotics and Automation (ICRA 2020) (pp. 11392-11397). Piscataway, NJ: IEEE.


Cite as: https://hdl.handle.net/21.11116/0000-000B-2E03-F
Abstract
Non-contact manipulation is of great importance in the actuation of micro-robotics. It is challenging to contactless manipulate micro-scale objects over large spatial distance in fluid. Here, we describe a novel approach for the dynamic position control of microparticles in three-dimensional (3D) space, based on high-speed acoustic streaming generated by a micro-fabricated gigahertz transducer. The hydrodynamic force generated by the streaming flow field has a vertical component against gravity and a lateral component towards the center, thus the microparticle is able to be stably trapped at a position far from the transducer surface, and to be manipulated over centimeter distance in 3D. Only the hydrodynamic force is utilized in the system for particle manipulation, making it a versatile tool regardless the material properties of the trapped particle. The system shows high reliability and manipulation velocity, revealing its potentials for the applications in robotics and automation at small scales.