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A self-healing folic acid gel with multiple responses and its preparation method

A multi-response, self-healing technology, applied in chemical instruments and methods, colloid chemistry, colloid chemistry, etc., to achieve the effect of easy-to-obtain raw materials, convenient and flexible preparation, and increase practicability

Active Publication Date: 2015-10-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pterine groups in folic acid can form hydrogen bonds with each other, which has a wide range of applications in the field of self-assembly, but it has been found that using natural unmodified folic acid as a gelling factor and using folic acid to prepare a multi-response self-repairing folic acid coagulation Glue has not been reported yet

Method used

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  • A self-healing folic acid gel with multiple responses and its preparation method
  • A self-healing folic acid gel with multiple responses and its preparation method
  • A self-healing folic acid gel with multiple responses and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Accurately prepare 50mM folic acid mother liquor, the solvent is dimethyl sulfoxide, use a syringe to transfer 1ml mother liquor into a 25ml colorimetric tube, use a 10ml syringe to measure 1.5ml dimethylsulfoxide into the colorimetric tube, use another 10ml A syringe measures 2.5ml of distilled water into the colorimetric tube, stirs at room temperature (20-30°C) to a homogeneous phase, and stands still to obtain a yellow transparent gel, which is a folic acid gel with multiple responses.

Embodiment 2

[0029] Accurately prepare 50 mM folic acid mother liquor, the solvent is dimethyl sulfoxide, use a syringe to transfer 1ml mother liquor into a 25ml colorimetric tube, use a 10ml syringe to measure 1ml dimethyl sulfoxide into the colorimetric tube, use another 10ml syringe Measure 3ml of distilled water into the colorimetric tube, weigh 0.004g of sodium hydroxide into the colorimetric tube, stir at room temperature to a homogeneous phase, and stand still to obtain a yellow transparent solution, which is a folic acid gel with multiple responses.

Embodiment 3

[0031] Accurately prepare 50 mM folic acid mother liquor, the solvent is dimethyl sulfoxide, use a syringe to transfer 1ml mother liquor into a 25ml colorimetric tube, use a 10ml syringe to measure 1ml dimethyl sulfoxide into the colorimetric tube, use another 10ml syringe Measure 3ml of distilled water in the colorimetric tube, stir at room temperature to a homogeneous phase, and stand still to obtain a yellow transparent gel, which is a folic acid gel with multiple responses. Irradiated with a full-wavelength xenon lamp for 3 hours, it was found that the gel became a flowable reddish-brown solution, which became a precipitate after standing for a period of time.

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Abstract

The invention discloses self-repairing folic acid gel with multiple responses and a preparation method thereof. The gel is a mixed system comprising organic gel factor folic acid, water and organic solvent; the folic acid is dissolved in the mixed solvent prepared by the water and the organic solvent under the condition of room temperature, is evenly mixed, and placed still until the solution forms the gel. The gel of the invention has excellent optical characteristics, has four responses of heat, light, force and pH, and can finish reversible conversion between gel and solution under the excitation of corresponding factors, so that a novel feasible path for truly applying the gel to the civil fields such as medical materials, optical materials, intelligent materials and crystal growth templates is provided; the self-repairing folic acid gel has a wide application prospect.

Description

Technical field [0001] The invention relates to a self-repairing folic acid gel with multiple responses and a preparation method thereof, and belongs to the field of functional materials. Background technique [0002] Gel is a substance between liquid and solid. According to the solvent classification, it can be divided into hydrogel and organic gel. It can also be divided into physical gel and chemical gel. The physical gel is the supramolecular gel. It is a three-dimensional network structure formed by self-assembly of intermolecular forces (van der Waals force, π-π stacking, hydrophilic and hydrophobic force, electrostatic force) in a solvent. It is an eye-catching soft material material. , People have made many important advances in gel research (T. Naota and H. Koori, J. Am. Chem. Soc., 2005, 127, 9324-9325; Sangeetha, NM; Maitra, U. Chemical Society Reviews 2005, 34,821; Lloyd, GO; Clarke, N.; Steed, JWChem. Rev. 2010, 110, 1960; PL Nostro, I. Santoni, M. Bonini, P. Baglio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/00
Inventor 初晓晓郝爱友邢鹏遥
Owner SHANDONG UNIV
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