PRECISE ASSEMBLING OF INDIVIDUAL MICRO CHAINS BASED ON ACOUSTIC RADIATION
In this paper, we present an attractive acoustic assembling manipulation (AAM) methodology to efficiently and reproducibly assemble micro objects.The experimental system consists of a signal generator, a power amplifier, a acoustofluidic chip and an optical microscope.The acoustofluidic chip is fabricated through a typical microelectromechanical system(MEMS) strategy.When a sinusoidal electrical signal is applied to the piezoelectric transducer of the acoustofluidic chip, a standing flexural vibration mode of the chip will be excited to generate a local acoustic radiation around the V type micro structures.Particles suspending in the liquid media will be trapped to the micro structures firstly and then be driven to assemble individual chains at the tips of such structures.This new acoustic assembling method solely relying on the localized radiation forces are capable of quick response, parallel manipulation and precise assembling with the synthetic micro particles.Such facile assembling method provides another compelling alternative for nano engineering communities to investigate the particle interactions and opens a new door for developing configurable nano robots.
Micromachines Acoustic radiation Micro particles Dynamic assembling
Kang-dong ZHAO Hui SHEN Le WANG Zhi-wen WANG Xiao-long LU
State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics
国际会议
哈尔滨
英文
126-129
2019-01-11（万方平台首次上网日期，不代表论文的发表时间）