Preparation of liquid metal combination polymer brush motor and application of polymer brush motor serving as nanomotor

Abstract

The invention provides preparation of a liquid metal combination polymer brush motor and application of the polymer brush motor serving as a nanomotor. The method comprises the steps that firstly, magnetic nanoparticles are prepared; secondly, the magnetic nanoparticles are loaded in a porous template; thirdly, liquid metal is fixed in the porous template; fourthly, one side of the liquid metal inthe template is replaced with metal; fifthly, polymer brushes are synthesized; and sixthly, the template is removed to obtain the liquid metal combination polymer brush motor. The liquid metal combination polymer brush motor serves as the nanomotor to be disposed in fluid, a periodic variation magnetic field is applied to the fluid, the liquid metal combination polymer brush motor interacts withfluid media due to unsymmetrical configuration of the liquid metal combination polymer brush motor and unsymmetrical distribution of the polymer brushes, and effective motion of the motor in the longaxis direction is realized. The liquid metal combination polymer brush motor has the advantages that sizes are controllable and uniform, stimulation responsiveness is optional, the preservation time is long, the number is large and the like, and has broad application prospects in biomedicine, environmental governance, bionics and other fields.

Description

technical field [0001] The invention relates to the preparation of a liquid metal composite polymer brush motor and its application as a nanometer motor, belonging to the technical field of preparation methods and application of the polymer brush motor. Background technique [0002] Due to the application prospects of micro-nano motors in biomedicine and other fields, the synthesis of various special structures and micro-nano motors using special materials has become one of the current research hotspots. And because of the low Reynolds number conditions at the micro-nano scale, the driving mode and motion behavior of the motor have become important criteria for evaluating the performance of the motor. Solvothermal method, electrochemical deposition method and layer-by-layer self-assembly method are common methods for preparing micro-nano motors. However, they all have their own shortcomings, and it is difficult to apply to liquid metals: the solvothermal method is difficult...

AI Technical Summary

Problems solved by technology

However, they all have their own shortcomings, and it is difficult to apply to liquid metals: the solvothermal method is difficult to accurately control the chemical composition and geometry of the motor; the electrochemical deposition method is difficult to treat waste liquid and the cost is high; the common composition of the layer-by-layer assembly method Substances with low surface energy are difficult to combine with liquid metals

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