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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 effect of simple preparation process, strong operability, and expanding application fields

Active Publication Date: 2013-11-27
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 solid Al(NO 3 ) 3 ·9H 2 O and 0.16 mol of urea were dissolved in 70 mL of deionized water, crystallized in a 90 mL polytetrafluoroethylene pressure reaction vessel at 110°C for 24 hours, and washed with deionized water by centrifugation to a pH of about 7,60 Dry at ℃ for 12h to obtain carbonate intercalated hydrotalcite;

[0033] b. Take 1g of the above carbonate intercalation hydrotalcite and solid NaNO 3 327g dissolved in 1L in addition to CO 2 After uniformly dispersing in deionized water, stir under nitrogen atmosphere at 25℃, carry out ion exchange reaction for 24 hours, and remove CO 2 Centrifugal washing with deionized hot water to pH 7, and drying at 60°C for 18 hours to obtain a hydrotalcite precursor with nitrate between the layers;

[0034] 2. Take 0.1g of the hydrotalcite precursor with nitrate between the a...

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 solid Al(NO 3 ) 3 ·9H 2 O dissolved in 50mL in addition to CO 2 Of deionized water;

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

[0043] c. Put the alkali solution prepared in step b in a four-neck bottle, 2 Under the condition of air protection, while stirring vigorously, slowly drip the salt solution prepared in step a into the four-necked flask, and drip it for about 30 minutes. After the dripping is completed, adjust the pH value to 9 with 5mol / L NaOH solution , 80℃ water bath reaction for 24h, use to remove CO 2 Centrifugal washing with deionized hot water to pH 7, and drying at 60°C for 18 hours to obtain a hydrotalcite precursor with nitrate between the layers;

[0044] 2. Take 0.1g of the above-mentioned nitrate intercalation hydrotalcite and stir in 100ml formamide solvent for 24 hours, under nitr...

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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 luminescent film material of biological small molecule nucleotides and hydrotalcite nanosheets and a preparation method thereof. Background technique [0002] Double metal composite hydroxides, also known as hydrotalcite (Layered Double Hydroxides, abbreviated as LDHs) is a multifunctional anionic layered material, which has the characteristics of adjustable metal elements in the layers and exchange of ions between layers. Through reasonable design, researchers have used various methods to introduce hundreds of anions with functional characteristics into the LDH layer, forming anionic intercalation structure materials with different properties, which are used in catalysis, drug storage and release, photoelectricity Various fields such as transformation have broad application prospects. Since LDH has good biocompatibility, the assembly of biol...

Claims

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Application Information

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Patent Type & Authority Patents(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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