Self-repairing folic acid gel with multiple responses and preparation method thereof

A multi-response and self-healing technology, applied in chemical instruments and methods, colloid chemistry, colloid chemistry, etc., to achieve the effects of simple and flexible preparation, increased practicability, and excellent optical properties

Active Publication Date: 2014-02-12
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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  • Self-repairing folic acid gel with multiple responses and preparation method thereof
  • Self-repairing folic acid gel with multiple responses and preparation method thereof
  • Self-repairing folic acid gel with multiple responses and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Accurately prepare 50mM folic acid mother solution, the solvent is dimethyl sulfoxide, pipette 1ml of the mother solution with a syringe and place it in a 25ml colorimetric tube, use a 10ml syringe to measure 1.5ml dimethyl sulfoxide into the colorimetric tube, and use another 10ml Measure 2.5ml of distilled water into the colorimetric tube with a syringe, stir at room temperature (20-30°C) until homogeneous, and let stand to obtain a yellow transparent gel, which is the multiple-response folic acid gel.

Embodiment 2

[0029] Accurately prepare 50mM folic acid mother solution, the solvent is dimethyl sulfoxide, pipette 1ml of the mother solution with a syringe and place it in a 25ml colorimetric tube, use a 10ml syringe to measure 1ml dimethyl sulfoxide into the colorimetric tube, and 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 until homogeneous, and let stand to obtain a yellow transparent solution, which is the multiple response folic acid gel.

Embodiment 3

[0031] Accurately prepare 50mM folic acid mother solution, the solvent is dimethyl sulfoxide, pipette 1ml of the mother solution with a syringe and place it in a 25ml colorimetric tube, use a 10ml syringe to measure 1ml dimethyl sulfoxide into the colorimetric tube, and use another 10ml syringe Measure 3ml of distilled water into the colorimetric tube, stir at room temperature until homogeneous, and let stand to obtain a yellow transparent gel, which is the multiple response folic acid gel. After irradiating with a full-band xenon lamp for 3 hours, it was found that the gel turned into 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, belonging to the field of functional materials. Background technique [0002] Gel is a substance between liquid and solid. It can be divided into hydrogel and organic gel according to solvent classification, and can also be divided into physical gel and chemical gel. Physical gel is supramolecular gel , is a three-dimensional network structure formed by self-assembly in a solvent through intermolecular forces (van der Waals force, π-π stacking, hydrophilic-hydrophobic force, electrostatic force), and is a remarkable soft material. In recent years, , people have made many important advances in gel research (T.Naota and H.Koori, J.Am.Chem.Soc., 2005, 127, 9324–9325; Sangeetha, N.M.; Maitra, U.Chemical Society Reviews2005, 34, 821; Lloyd, G.O.; Clarke, N.; Steed, J.W. Chem. Rev. 2010, 110, 1960; P.L. Nostro, I. Santoni, M. Bonini, P. Baglion...

Claims

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Application Information

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