Molecule three-dimensional rotation operation device based on dielectrophoresis and control method of molecule three-dimensional rotation operation device based on dielectrophoresis

Abstract

The invention discloses a molecule three-dimensional rotation operation device based on dielectrophoresis and a control method of the molecule three-dimensional rotation operation device based on dielectrophoresis. The operation device comprises an insulating substrate, a plurality of peripheral electrodes and a bottom electrode, wherein the multiple peripheral electrodes are arranged on the upper surface of the insulating substrate in a spaced mode, a cavity-like structure is formed among the peripheral electrodes, the bottom electrode is arranged on the upper surface of the insulating substrate and located inside the cavity-like structure, and the height of the bottom electrode in the direction perpendicular to the upper surface of the insulating substrate is smaller than the height of the multiple peripheral electrodes. The operation device can resolve the technical problem of carrying out three-dimensional rotation on molecules in space, achieves three-dimensional rotation, is more favorable for observation and operation on the molecules, improves the accuracy of an experiment, and enables the experiment result to be more accurate.

Description

technical field [0001] The invention relates to the field of micro-electromechanical technology, in particular to an operating device for three-dimensional rotation of tiny particles based on dielectrophoresis and a control method thereof. Background technique [0002] The three-dimensional positioning and rotation of tiny particles ranging from nanometers to millimeters, such as microspheres, DNA, proteins, cells, etc., is a very basic operation in the fields of physical, chemical and biological research. There are many methods for three-dimensional positioning of tiny particles, but devices and methods for three-dimensional rotating tiny particles are still rare. In the literature and technology seen, there are many reports on the rotation of tiny particles around a single axis, and there are few reports on the rotation of tiny particles around three axes (that is, three-dimensional). [0003] In the related art, commonly used technologies such as dielectrophoresis (DEP),...

AI Technical Summary

Problems solved by technology

There are many methods for three-dimensional positioning of tiny particles, but devices and methods for three-dimensional rotation of tiny particles are still rare

However, in related technologies, the use of three-dimensional rotation methods has great limitations, such as limited rotation speed and angle range, limited types of particles that can be rotated, etc., and does not solve the three-dimensional rotation of tiny particles in space. Due to technical difficulties, errors occurred in the observation and operation of tiny particles, which made the experimental results inaccurate

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