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Composite lighting thin film material of nucleotide and layered double hydroxide nanometer sheet and preparation method thereof

A luminescent film, hydrotalcite technology, applied in luminescent materials, biochemical equipment and methods, chemical instruments and methods, etc., to achieve the effects of expanding application fields, simple preparation process, and strong operability

Active Publication Date: 2012-06-27
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nucleotides and their derivatives are very important biochemical reagents and raw materials in the fields of genetic engineering, medicine, food, agricultural production and scientific research. Not yet reported

Method used

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  • Composite lighting thin film material of nucleotide and layered double hydroxide nanometer sheet and preparation method thereof
  • Composite lighting thin film material of nucleotide and layered double hydroxide nanometer sheet and preparation method thereof
  • Composite lighting thin film material of nucleotide and layered double hydroxide nanometer sheet and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] 1. Preparation of hydrotalcite precursor with nitrate between layers by ion exchange method:

[0032] a. Add 0.020mol of solid Mg(NO 3 ) 2 ·6H 2 O and 0.01mol of solid Al(NO 3 ) 39H 2 O and 0.16mol urea were dissolved in 70mL of deionized water, in a 90ml polytetrafluoroethylene pressure reaction vessel, crystallized at 110°C for 24 hours, and washed by centrifugation with deionized water until the pH was about 7,60 ℃ drying for 12 hours to obtain carbonate intercalated hydrotalcite;

[0033] b. Take 1 g of the above carbonate intercalated hydrotalcite and solid NaNO 3 327g dissolved in 1L to remove CO 2 After uniform dispersion in deionized water, stir under nitrogen atmosphere at 25°C, conduct ion exchange reaction for 24 hours, and then remove CO with 2 The deionized hot water was centrifuged and washed to a pH of about 7, and dried at 60°C for 18 hours to obtain a hydrotalcite precursor with nitrate in the interlayer;

[0034] 2. Take 0.1g of the above-men...

Embodiment 2

[0040] 1. Preparation of nitrate hydrotalcite precursor by co-precipitation method:

[0041] a. Add 0.02mol of solid Mg(NO 3 ) 2 ·6H 2 O and 0.01mol of solid Al(NO 3 ) 3 9H 2 O dissolved in 50mL to remove CO 2 of deionized water;

[0042] b. Dissolve 0.04mol NaOH in 50mL to remove CO 2 of deionized water;

[0043] c. the alkali solution prepared by step b is placed in a four-necked bottle, 2 Under the condition of air protection, while vigorously stirring, slowly add the salt solution prepared in step a into the four-necked bottle, and the drop is completed in about 30 minutes. After the drop is completed, use 5mol / L NaOH solution to adjust its pH value to 9 , 80 ℃ water bath reaction for 24h, with the removal of CO 2 The deionized hot water was centrifuged and washed to a pH of about 7, and dried at 60°C for 18 hours to obtain a hydrotalcite precursor with nitrate in the interlayer;

[0044] 2. Take 0.1 g of the above-mentioned nitrate intercalated hydrotalcite and...

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Abstract

The invention discloses a composite lighting thin film material of nucleotide and layered double hydroxide nanometer sheets and a preparation method thereof. The preparation method can be briefly summarized as the following steps that nucleotide negative ions with negative charges, lighting organic negative ions 4,4-double (2-sulfonyl styrene) biphenyl and the layered double hydroxide nanometer sheets peeled in organic solvent form a supermolecular stratified material of an ordered structure through a substep assembling method layer upon layer under a synergistic effect of static and hydrogen bond. The composite lighting thin film material of the nucleotide and the layered double hydroxide nanometer sheets and the preparation method have the meaning of achieving ordered assembling of biological small molecular nucleotide and layered double hydroxide nanometer sheet ultrathin films for the first time and widening an application field of the layered double hydroxide nanometer sheet material in the aspects of novel biological material preparation and fluorescent detecting of the nucleotide. The composite lighting thin film material of the nucleotide and the layered double hydroxide nanometer sheets and the preparation method for the composite lighting thin film material have the advantages that a preparation process of the thin films is simple, operability is strong, the thickness and surface appearance of the thin films can be controlled by changing assembling times, and the thickness of the single-layer thin film is in nanometer order of magnitude.

Description

technical field [0001] The invention belongs to the field of inorganic-organic composite materials, and in particular provides a composite light-emitting film material of biological small molecule nucleotides and hydrotalcite nanosheets and a preparation method thereof. Background technique [0002] Double metal composite hydroxide, also known as Layered Double Hydroxides (LDHs for short), is a multifunctional anionic layered material, which has many characteristics such as adjustable layer metal elements and interlayer ion exchange. Through rational design, researchers have used various methods to introduce hundreds of anions with functional properties into the interlayer of LDH, forming anion-type intercalation structure materials with different properties, which are used in catalysis, drug storage and release, photoelectricity, etc. Transformation and other fields have broad application prospects. Due to the good biocompatibility of LDH, the assembly of bioactive molecul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C12Q1/68
Inventor 陆军秦胜辉闫东鹏段雪
Owner BEIJING UNIV OF CHEM TECH
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