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Kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and preparing method thereof

A technology of kapok fiber and manganese dioxide, which is applied in fiber treatment, plant fiber, medical preparations of non-active ingredients, etc., can solve problems such as weak biocompatibility and biodegradability, complicated preparation process, and difficult surface modification , to achieve good biodegradability, good biodegradability and low cost

Active Publication Date: 2019-04-05
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of most micro-nanomotors is relatively complicated, expensive, difficult to modify the surface, and has weak biocompatibility and biodegradability.

Method used

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  • Kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and preparing method thereof
  • Kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and preparing method thereof
  • Kapok fiber/manganese dioxide structure multi-layer self-drive tubular micro-nano motor and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a multilayer self-driven tubular micro-nano motor constructed of kapok fiber / manganese dioxide comprises the following steps:

[0023] (1) Potassium permanganate solution preparation: mix and stir an appropriate amount of potassium permanganate and pure water evenly to obtain a potassium permanganate solution with a concentration of 0.5mol / L;

[0024] (2) Kapok fiber treatment: shred the kapok fiber to a length of 150 μm;

[0025] (3) Preparation of tubular micro-nano motors: Take 0.56 g of kapok fibers shredded in step (2) and soak them in 30 mL of potassium permanganate solution obtained in step (1) for 24 hours, then wash and vacuum dry to obtain kapok fibers / two Multilayer self-propelled tubular micro-nanomotor constructed of manganese oxide.

Embodiment 2

[0027] A method for preparing a multilayer self-driven tubular micro-nano motor constructed of kapok fiber / manganese dioxide comprises the following steps:

[0028] (1) Potassium permanganate solution preparation: mix and stir an appropriate amount of potassium permanganate and pure water evenly to obtain a potassium permanganate solution with a concentration of 0.25mol / L;

[0029] (2) Kapok fiber treatment: shred the kapok fiber to a length of 100 μm;

[0030] (3) Preparation of tubular micro-nano motor: Take 0.56g of kapok fibers shredded in step (2) and soak them in 30mL of potassium permanganate solution obtained in step (1) for 48 hours, then wash and vacuum dry to obtain kapok fibers / two Multilayer self-propelled tubular micro-nanomotor constructed of manganese oxide.

Embodiment 3

[0032] A method for preparing a multilayer self-driven tubular micro-nano motor constructed of kapok fiber / manganese dioxide comprises the following steps:

[0033] (1) Potassium permanganate solution preparation: Mix and stir an appropriate amount of potassium permanganate and pure water evenly to obtain a potassium permanganate solution with a concentration of 1mol / L;

[0034] (2) Kapok fiber treatment: shred the kapok fiber to a length of 200 μm;

[0035] (3) Preparation of tubular micro-nano motors: Take 0.56 g of kapok fibers shredded in step (2) and soak them in 30 mL of potassium permanganate solution obtained in step (1) for 72 hours, then wash and vacuum dry to obtain kapok fibers / two Multilayer self-propelled tubular micro-nanomotor constructed of manganese oxide.

[0036] Performance Characterization:

[0037] figure 1 For kapok fiber loading MnO in embodiment 1 2 FESEM image of nanoparticles. It can be seen from the figure that a layer of irregular-shaped MnO ...

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Abstract

The invention discloses a kapok fiber / manganese dioxide structure multi-layer self-drive tubular micro-nano motor and a preparing method thereof. With manganese dioxide adopted as the raw material andkapok fiber adopted as the template, by soaking the kapok fiber in a manganese dioxide solution, the manganese dioxide and the kapok fiber are made to have a redox reaction to generate manganese dioxide nanoparticles to be loaded on the kapok fiber, and therefore the multi-layer self-drive tubular micro-nano motor is prepared, and the motor is good in biological degradability, has carrying, conveying and releasing functions and has wide application prospects in the fields of efficient medicine loading, target cancer cell conveying, medicine near infrared light responsiveness controllable releasing, environmental control and the like.

Description

technical field [0001] The invention belongs to the technical field of micro-nano motors, and in particular relates to a multi-layer self-driven tubular micro-nano motor constructed of kapok fiber / manganese dioxide and a preparation method thereof. Background technique [0002] At present, the preparation of micro-nano motors has become one of the hottest directions in nanotechnology research. A micro-nano motor is a nano- or micron-level device that can move and convert different forms of energy such as electrical energy, magnetic energy, light energy, and chemical energy into driving force and its own kinetic energy. There are many types of micro-nano motors, and the preparation methods of different shapes of micro-nano motors are also different, for example: linear micro-nano motors are usually prepared by template-assisted electrodeposition; Janus spherical micro-nano motors are usually prepared by microsphere template method; Motors are typically prepared using crimpin...

Claims

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Application Information

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IPC IPC(8): D06M11/48D06M101/06A61K47/02A61K47/38A61P35/00
CPCA61K47/02A61K47/38A61P35/00D06M11/48D06M2101/06
Inventor 郑婵陈玲戴品强黄聿娟吴修凯
Owner FUJIAN UNIV OF TECH
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