Artificial structural acoustic field based micro-fluid system and particle control method

The invention discloses an artificial structural acoustic field based micro-fluid system which comprises a micro-cavity and an ultrasonic transmitting device. The micro-cavity is used for containing a particle-containing solution, and the ultrasonic transmitting device is used for transmitting ultrasonic waves. The artificial structural acoustic field based micro-fluid system is characterized by further comprising a photonic crystal slab arranged in the micro-cavity, the photonic crystal slab is of an artificial periodic structure and is used for modulating an acoustic field to control particles. The invention further discloses a particle control method for an artificial structural acoustic field based micro-fluid. In the preferred embodiment of the invention, due to the fact that the micro-fluid system comprises the micro-cavity, the ultrasonic transmitting device and the photonic crystal slab, the ultrasonic transmitting device is used for transmitting the ultrasonic waves and the photonic crystal slab is of the artificial periodic structure and is used for modulating the acoustic field to control particles, a new medicine delivery means is provided, and technical support is provided for research and development of drugs.