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A near-infrared light-responsive smart hydrogel bionic arm and its preparation method

A near-infrared photoresponse and bionic arm technology, applied in the field of bionic smart materials, can solve the problems of rare hydrogels and limited mechanical properties, and achieve the effect of overcoming low driving precision, excellent mechanical strength, and mild polymerization conditions

Active Publication Date: 2017-11-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the reported high mechanical strength hydrogels are limited to the characterization of mechanical properties, and the application of hydrogels, especially in hydrogel smart actuators, is still rare.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Disperse 5 mg graphene oxide in 10 mL deoxygenated deionized water by ultrasonic at room temperature to obtain a graphene oxide aqueous dispersion, and then disperse 0.1 g of Laponite XLG gel-type product in the above graphene oxide aqueous dispersion Then add 0.5 g of acrylamide monomer and stir for 2 h to obtain a uniform dispersion; pass argon into the dispersion for 10 minutes to remove the oxygen, add 0.015 g of initiator potassium persulfate and four 0.004 g of methylethylenediamine was obtained as reaction solution I; 5 mg of graphene oxide was ultrasonically dispersed in 10 mL of deoxygenated deionized water at room temperature to obtain a graphene oxide water dispersion, and then 0.1 g of lithium diatomaceous earth Laponite The XLG gel-type product was dispersed in the above graphene oxide aqueous dispersion, stirred for 2 h; then added 0.5 g N -Isopropylacrylamide monomer, stirred for 2 h to obtain a uniform dispersion; argon gas was introduced into the disper...

Embodiment 2

[0030]At room temperature, 20 mg of graphene oxide was dispersed in 10 mL of deoxygenated deionized water by ultrasound to obtain a graphene oxide aqueous dispersion, and then 0.2 g of Laponite RD gel-type product was dispersed in the above graphene oxide aqueous dispersion Then add 0.9 g of acrylamide monomer and stir for 2 h to obtain a uniform dispersion; pass argon gas into the dispersion for 10 minutes to remove oxygen, add 0.001 g of initiator ammonium persulfate and four 0.001 g of methylethylenediamine was used to obtain reaction solution I; 20 mg of graphene oxide was dispersed in 10 mL of deoxygenated deionized water by ultrasonic at room temperature to obtain an aqueous dispersion of graphene oxide, and then 0.2 g of lithium diatomaceous earth Laponite RD gel-type products were dispersed in the above graphene oxide aqueous dispersion, stirred for 2 h; then added 0.7 g N - Isopropylacrylamide monomer, stirred for 2 hours to obtain a uniform dispersion; argon gas was ...

Embodiment 3

[0032] At room temperature, 5 mg of graphene oxide was dispersed in 10 mL of deoxygenated deionized water by ultrasound to obtain a graphene oxide aqueous dispersion, and then 0.3 g of Laponite RD gel-type product was dispersed in the above graphene oxide aqueous dispersion Then, add 1.3 g of acrylamide monomer and stir for 2 h to obtain a uniform dispersion; pass argon gas into the dispersion for 10 minutes to remove oxygen, and add 0.007 g of initiator ammonium persulfate and four 0.003 g of methylethylenediamine was used to obtain reaction solution I; 5 mg of graphene oxide was dispersed in 10 mL of deoxygenated deionized water by ultrasonic at room temperature to obtain an aqueous dispersion of graphene oxide, and then 0.3 g of lithium diatomite Laponite RD gel-type products were dispersed in the above graphene oxide aqueous dispersion, stirred for 2 h; then added 1.0 g N - Isopropylacrylamide monomer, stirred for 2 hours to obtain a uniform dispersion; argon gas was intro...

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PUM

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Abstract

The invention discloses a near-infrared light-responsive intelligent hydrogel bionic arm and a preparation method thereof. The hydrogel bionic arm is formed by connecting three sections of hydrogel with different functions through in-situ free radical polymerization. The hydrogels are respectively: I-extending segment, II-contracting segment and III-grabbing segment, the hydrogel bionic arm can capture the target object through viscosity or magnetism; the intelligent hydrogel bionic arm can The bionic actions of elongation, object capture, and retrieval are realized under irradiation; the preparation method of the near-infrared light-responsive smart hydrogel bionic arm is as follows: the components of the above three sections of hydrogel are respectively dispersed in water, and the trigger Agents, according to the order of I‑II‑III or III‑II‑I, were added to the mold and sealed, and placed in an environment of 10~25 oC to react for 12‑48 hours to obtain a near-infrared light-responsive smart hydrogel bionic arm .

Description

technical field [0001] The invention relates to the field of bionic intelligent materials of functional polymer-inorganic lithium algae nano-hybrid materials, in particular to a near-infrared light-responsive intelligent hydrogel bionic arm and a preparation method thereof. Background technique [0002] Because hydrogel contains a large amount of water and has a perfect three-dimensional network structure to give it the characteristics of soft matter, this structure is similar to biological tissue, and has important application prospects in the field of biomedical materials, and soft matter actuators, especially hydrogels The development of actuators in the field of smart materials is receiving increasing attention. The unique structure and intelligent responsiveness of organisms to external stimuli have important inspiration and guidance for the development and design of new actuator materials. Apply the structure and characteristics of organisms to the design and developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F292/00C08F220/56C08F220/54C08F4/40A61L27/16A61L27/02A61L27/20A61L27/52
Inventor 王涛黄家和杨奕青赵雷孙尉翔童真
Owner SOUTH CHINA UNIV OF TECH
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