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Self-propelled sterilizing micro motor

A micro-motor, self-propelled technology, applied in biocides, botany equipment and methods, animal husbandry, etc., can solve the problem that bacteria cannot be killed

Active Publication Date: 2019-04-02
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing magnesium-based micromotors fail to kill bacteria

Method used

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  • Self-propelled sterilizing micro motor
  • Self-propelled sterilizing micro motor
  • Self-propelled sterilizing micro motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] Embodiment: A self-propelled and sterilized micro-motor comprises magnesium microspheres 1 covered with a layer of silver 2 on the surface of the magnesium microspheres.

[0031] The silver is evaporated on a part of the surface of the magnesium microsphere, and the other part of the surface of the magnesium microsphere is magnesium and exposed to the outside.

[0032] The diameter of the magnesium microspheres is 20-30 microns.

[0033] The thickness of the silver is 20 nm.

[0034] The silver is 99% pure.

[0035] Silver / magnesium micromotor fabrication was accomplished by thermal evaporation. Magnesium microspheres were first placed on a glass substrate, and silver / magnesium microsphere structures were obtained after depositing 20 nanometers of silver on the surface of the magnesium microspheres, and then released from the glass substrate into an aqueous solution by ultrasonic waves.

[0036] The morphology was confirmed by scanning electron microscopy, as figur...

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Abstract

The invention discloses a self-propelling bacterium-killing micrometer motor. The self-propelling bacterium-killing micrometer motor comprises magnesium microspheres, and the surfaces of the magnesium microspheres are covered with a layer of silver. On the basis of the magnesium microspheres, according to the magnesium-base micrometer motor, magnesium and water react with each other to generate driving force, the micrometer motor can move inside a water solution spontaneously to achieve self-propelling movement, and through depositing the silver on the surfaces of the magnesium microspheres, the effect of killing or resisting bacteria can be achieved through restraining the bacteria by silver ions. In addition, the magnesium microspheres move inside the water solution spontaneously and can release more silver ions in movement, so more bacteria can be killed within a short time, the number of killed bacteria is 9 times that of killed bacteria under a static condition, and bacteria-killing efficiency is higher.

Description

technical field [0001] The invention relates to a micro-motor, in particular to a self-propelled and sterilized micro-motor. Background technique [0002] Self-propelled micromotors refer to tiny objects that can realize autonomous motion in a solution. It has many potential application prospects in biomedicine and so on. These micromotors achieve motion in solutions by converting chemical energy into kinetic energy. It can be based on the principle of bubble propulsion or surface and interfacial tension. The fuel relied upon can be hydrogen peroxide, acid, bromine or iodine etc. But these fuels are generally toxic, so micromotors based on these fuels are not suitable for further applications in biomedicine. [0003] Guan Jianguo et al. reported a micromotor based on platinum and magnesium, which was constructed by evaporating a layer of platinum on the surface of magnesium microspheres by thermal evaporation, but the constructed platinum / magnesium Micro motors have no ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01P1/00
Inventor 董彬张慧
Owner SUZHOU UNIV