Preparation of liquid metal composite flexible nano-tube and application thereof as nano-motor

A liquid metal, nanotube technology, applied in nanotechnology, nanotechnology, nanotechnology for sensing, etc., can solve the problems of difficult operation, low biocompatibility, high cost, and achieve wide application prospects, Size controllable and long-lasting effects

Active Publication Date: 2018-01-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the waste liquid of micro-nanotubes synthesized by electrochemical deposition is difficult to handle, the cost is high, and the biocompatibility is low; the operation requirements of the particle beam spraying method are difficult, and the strength of the template is high, and the water / solvothermal method is difficult to be accurate. Adjust the composition of the motor, the repeatability is low

Method used

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  • Preparation of liquid metal composite flexible nano-tube and application thereof as nano-motor
  • Preparation of liquid metal composite flexible nano-tube and application thereof as nano-motor
  • Preparation of liquid metal composite flexible nano-tube and application thereof as nano-motor

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preparation example Construction

[0020] The method for preparing liquid metal composite flexible nanotubes involved in this embodiment includes the following steps:

[0021] Step 1. Dissolve 0.1g~1.0g ferrous chloride and 0.5g~2.0g ferric chloride in 40ml~100ml deionized water, heat to 60℃~80℃ and stir, then add 1ml~10ml ammonia water, continue heating 30min~60min, attract the particles with a magnet and wash them for 1~3 times, add 2ml of sodium citrate with a concentration of 0.1~1g / ml, and continue heating for 30min~200min to obtain magnetic nanoparticles;

[0022] Step 2: Assemble the main skeleton of the nanotube: a. Using porous anodic aluminum oxide, polycarbonate (PC) membrane or porous silicon wafer as a template, the template is washed sequentially with isopropanol, acetone and ethanol to remove the dirt on the surface of the template; b Put the template into a polyelectrolyte with a concentration of 0.1-5 mg / mL and soak for 5 hours; c. Repeat step b 2-10 times to obtain the main skeleton of the nanotube...

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Abstract

The invention provides preparation of a liquid metal composite flexible nano-tube and application thereof as a nano-motor. The problems that an existing method for synthesizing a micro-nano-motor is high in cost, troublesome in after-treatment, low in biocompatibility and low in experiment repetitive rate are solved. The method comprises the steps of 1, preparing magnetic nanoparticles; 2, assembling polyelectrolyte into a porous template layer by layer; 3, assembling the magnetic nanoparticles; 4, fixing liquid metal into the porous template; 5, removing the template to obtain the liquid metal composite flexible nano-tube. The liquid metal composite flexible nano-tube is adopted as the micro-nano-motor to be arranged in fluid, a periodically changing magnetic field is applied, the flexible and asymmetric structure of the liquid metal composite flexible nano-tube enables the liquid metal composite flexible nano-tube and fluid media to affect each other, and net motion of the motor in the long-axis direction is achieved; the prepared liquid metal composite flexible nano-tube has the wide application prospect in the fields of biomedicine, bionic design and the like.

Description

Technical field [0001] The invention relates to the preparation of a liquid metal composite flexible nanotube and its application as a nanomotor, belonging to the technical field of nanotube preparation and nanomotor application. Background technique [0002] The use of different materials to make micro-nano-scale motors is a hot area of ​​nanoscience in recent years, and the materials used to make them determine their different motion modes and mechanisms. The existing synthesis methods of nanomotors include electrochemical deposition, particle beam spraying, water / solvothermal methods, etc. However, the waste liquid of micro-nanotubes synthesized by electrochemical deposition method is difficult to handle, has high cost, and has low biocompatibility; particle beam jet method requires difficult operation, and at the same time requires high template strength, and water / solvothermal method is difficult to be accurate Regulating the composition of the motor, the repeatability rate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F9/06B82Y30/00B82Y15/00
Inventor 贺强王位郭斌
Owner HARBIN INST OF TECH
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