Bifunctional hydrogel polymer composite material, its preparation method and use

A hydrogel polymer, gel polymer technology, applied in chemical instruments and methods, luminescent materials, chemiluminescence/bioluminescence, etc., can solve problems such as the inability of hydrogel to meet demand, and achieve high strength and long time The effect of continuous chemiluminescence, good rheological properties and broad application prospects

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

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Problems solved by technology

Therefore, in terms of luminous persistence, the hydrogel still cannot meet the demand

Method used

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  • Bifunctional hydrogel polymer composite material, its preparation method and use
  • Bifunctional hydrogel polymer composite material, its preparation method and use
  • Bifunctional hydrogel polymer composite material, its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0138] Example 1: Preparation of metal ion Co 2+ and N-(4-aminobutyl)-N-ethylisoluminol bifunctional hydrogel polymer composite, in which Co 2+ The molar ratio of ABEI to ABEI is 1:1, and the mass fraction of chitosan is 99.36% by weight based on the total weight of the bifunctional hydrogel polymer composite (Material 1).

[0139] In this example, the compound of general formula (I) is N-(4-aminobutyl)-N-ethylisoluminol ("ABEI"), and the luminescence enhancer is the metal ion Co 2+ , where Co 2+ The molar ratio of ABEI and ABEI is 1:1, and the mass fraction of chitosan is 99.36% by weight. The preparation method is as follows:

[0140] (i) In a beaker, at room temperature, prepare an alkaline solution, that is, LiOH, KOH, urea and H 2 O was mixed according to the mass ratio of 4.5:7:8:80.5. In another beaker, take 15ml of the above alkaline solution and add 600μL of 10mM CoCl 2 Aqueous solution, then add chitosan powder (commercially obtained, average molecular weight...

Embodiment 2

[0143] Example 2: Preparation of metal ions Ni 2+ and N-(4-aminobutyl)-N-ethylisoluminol bifunctional hydrogel polymer composites, in which Ni 2+ The molar ratio of ABEI to ABEI is 1:1, and the mass fraction of chitosan is 99.36% by weight based on the total weight of the bifunctional hydrogel polymer composite (Material 2).

[0144] Material 1 was prepared according to the same method as in Example 1, except that the same molar amount of NiCl was used in step (i) 2 Instead of CoCl 2 , get material 2. Measure the chemiluminescence kinetics curve of material 2 according to above-mentioned test method (7), the result is as follows Figure 4 B) Shown in curve c.

Embodiment 3

[0145] Example 3: Preparation of metal ions Fe 3+ and N-(4-aminobutyl)-N-ethylisoluminol bifunctional hydrogel polymer composite, in which Fe 3+ The molar ratio of ABEI to ABEI is 1:1, and the mass fraction of chitosan is 99.36% by weight based on the total weight of the bifunctional hydrogel polymer composite (Material 3).

[0146] According to the same method of preparing material 1 in Example 1, except that the same molar amount of FeCl was used in step (i) 3 Instead of CoCl 2 , get material 3. Measure the chemiluminescence kinetics curve of material 3 according to above-mentioned test method (7), the result is as follows Figure 4 B) Shown in curve d.

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Abstract

The invention relates to a bifunctional hydrogel polymer composite material, its preparation method and application. More specifically, the present invention relates to a kind of bifunctional hydrogel polymer composite material, and it comprises: the compound of chitosan hydrogel polymer, transition metal ion and general formula (I), wherein A ring represents C6-C14 Aryl; R 1 and R 2 Independently represents hydrogen, a linear or branched (C1‑C30) alkyl group whose terminal group is substituted or unsubstituted by an amino group, provided that the NR 1 R 2 have at least one NH 2 terminal base. The bifunctional hydrogel polymer composite material of the present invention has the characteristics of high luminescence intensity and long-term continuous luminescence in the presence of an oxidant, and can be used as a light source and for biosensors, molecular microscopic imaging, cell microscopic imaging or biological Sample analysis.

Description

technical field [0001] The invention relates to a bifunctional hydrogel polymer composite material containing a chemiluminescence segment and a luminescence enhancement segment, a preparation method and application thereof. Background technique [0002] Chemiluminescent functionalized composite materials have attracted much attention in recent years due to their excellent luminescent properties, and have broad application prospects in the fields of life science, materials engineering, and environmental science. For example, the prior art double-functionalizes N-(4-aminobutyl)-N-ethylisoluminol with chemiluminescent properties and metal ion catalysts on the surface of gold nanoparticles (Liu, M; Zhang, H; Shu, J; Liu, X; Li F; Cui, H; Analytical Chemistry 2014, 86, 2857-2861.). This bifunctional nano-gold composite material exhibits excellent chemiluminescent properties, however, the synthesized bifunctional composite material is still invisible in a dark environment, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06C09K11/60C08L5/08C08K5/25C08K3/16C08K3/30G01N21/76F21K2/06
CPCC08K3/16C08K3/30C08K5/25C08K2003/3045C09K11/06C09K11/60C09K2211/1044F21K2/06G01N21/76C08L5/08
Inventor 崔华刘雅婷沈雯
Owner UNIV OF SCI & TECH OF CHINA
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