A device for shaping annular aggregate of a micro-nano material

Abstract

A device for shaping annular aggregate of a micro-nano material is disclosed. The device includes a Langevin oscillator, an oscillation transmission needle, a connection segment, a circular ring and asubstrate provided with a suspension of the micro-nano material. The oscillation transmission needle is adhered to a radiation surface of the Langevin oscillator, and is connected to the circular ring through the connection segment. The center plane of the circular ring is parallel to the substrate, and the circular ring is completely inserted into the suspension of the micro-nano material. The circular ring is oscillated by the Langevin oscillator. Acoustic vortex generated in a fluid by the circular ring performing unidirectional in-plane oscillation is utilized to drive the micro-nano material dispersed on the substrate to move and aggregate below the circular ring, thus forming an annular aggregate of the micro-nano material on the substrate. The device has advantages of simple operation, easy miniaturization, a compact structure, high reliability, low energy consumption, and the like.

Description

Technical field: [0001] The invention relates to a ring-shaped aggregate forming device for micro-nano substances, which belongs to the fields of micro-nano manufacturing and biomedicine. Background technique: [0002] With the rapid development of biomedicine, micro-nano manufacturing and other fields, how to realize the controllable patterning of micro-nano substances on substrates has become an important and promising new technology. The patterning technology of micro-nano substances has broad application prospects in micro-nano self-assembly, high-sensitivity biosensing, crystal growth, artificial tissue culture, and micro-nano electronic device processing. Existing micro-nano substance pattern forming methods include magnetic tweezers, optical tweezers, and dielectrophoresis, etc. These methods usually have relatively strict requirements on working conditions, for example, they cannot be directly manipulated on the substrate, and the manipulated micro-nano substances ne...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a ring-shaped aggregate forming device for micro-nano substances to solve the problem that the ring-shaped aggregates of micro-nano substances cannot be formed on the substrate in the prior art

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