A kind of nanomotor and preparation method thereof

Abstract

The invention discloses a nanometer motor and a preparation method therefor. The preparation process is simplified and the nanometer motor can be driven through a magnetic field; the nanometer motor comprises two sphere bodies bonded together; the half spherical surfaces of the sphere bodies are evaporated with adhesion layer metal and magnetic metal; the adhesion layer metal is positioned between the corresponding sphere body and the magnetic metal; and the nanometer motor is 500nm-40[mu]m in diameter. The preparation method comprises the steps of paving and unfolding the sphere body on a clean glass plate to form a single layer film sphere body; evaporating the adhesion layer metal on the single layer film sphere body; continuously evaporating magnetic metal on the adhesion layer metal; after evaporation is completed, putting the glass plate into a culture dish comprising deionized water, then transferring to an ultrasonic environment to perform ultrasonic processing for several minutes to obtain a half-coated magnetic sphere body; and absorbing a suspension liquid comprising the half-coated magnetic sphere body by a container, applying an oscillation magnetic field to the suspension liquid, and enabling the single magnetic sphere bodies to be assembled to obtain the nanometer motor which is formed by two single magnetic sphere bodies in a bonding manner under the magnetic field effect.

Description

technical field [0001] The invention belongs to the field of nano motor and its preparation, more specifically a nano motor and its preparation method. Background technique [0002] The 2016 Nobel Prize in Chemistry was awarded to the study of molecular machines, the smallest machines in the world, which culminated in the study of tiny machines at the micro-nano scale. A micro-nano motor is a micro-nano device that can convert other forms of energy into kinetic energy to generate autonomous motion. Due to this unique property, it has many attractive application prospects in drug delivery, biosensing, micro-repair, etc. [0003] Since Paxton et al. discovered micro-nano Au-Pt bimetallic rods in 2004, researchers have learned a lot about micro-nano motors. It has been found that there are dozens of individual motion modes of micro-nano motors. So far, it has been found that the motor energy sources mainly come from two types: one is the chemical field represented by the part...

AI Technical Summary

Problems solved by technology

Through comparison, it can be found that the magnetic control spiral swing type and the spiral propulsion type micro-nano motor are generally processed by electrodeposition or micro-nano processing, but the general process is relatively complicated.

In order to simplify the processing complexity, Tierno et al., based on the idea of ​​similar rotational motion, firstly prepared the surface-action driven motor. Compared with the motor, the preparation process is slightly simplified, but its motion speed is too slow.

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