Acoustic particle capturing and trajectory control method based on magnetofluid reconstruction

• Main Authors: TAO KAI, WENG WANYU, WANG YANCHENG, PAN HEMIN, MEI DEQING, XU CHENGYAO
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2022
• Subjects: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; THEIR RELEVANT APPARATUS; TRANSPORTING; VINEGAR; WINE

The invention discloses an acoustic particle capturing and trajectory control method based on magnetofluid reconstruction. Magnetic fluid is injected into the cavity and forms a surface micro magnetic column structure under the action of a magnetic field; surface micro-magnetic column structures with different geometrical morphologies are reconstructed by accurately controlling the shape of a magnetic field and the magnetic field intensity; micro-particle turbid liquid is injected into the cavity, ultrasonic waves are excited in the cavity, and at the moment, sound field local constraining force is generated around the micro-magnetic column structure to capture nearby micro-particles; the distribution characteristics of the particles are accurately adjusted by changing the shape of the magnetic field, and the geometrical morphology characteristics and positions of the surface micro-magnetic columns are changed by changing the position and strength of the magnetic field. The device can realize non-contact accu