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Hybrid material of silica-curcumin and derivatives thereof as well as preparation method of hybrid material

A technology of silica and hybrid materials, applied in botany equipment and methods, chemicals for biological control, biocides, etc., to achieve the effect of strong phototoxicity reaction and strong antibacterial performance

Inactive Publication Date: 2014-03-26
LESHAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of curcuminoids and their derivatives to form Schiff bases through aminosilane coupling agents and grafting with silica to form organic-inorganic hybrid materials with better antibacterial functions has not been reported so far.

Method used

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  • Hybrid material of silica-curcumin and derivatives thereof as well as preparation method of hybrid material
  • Hybrid material of silica-curcumin and derivatives thereof as well as preparation method of hybrid material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 1.0g of aminated silicon dioxide (SiNH 2 ) in a 100mL flask, add 15ml absolute ethanol, add 0.5g (0.001359mol) curcumin after stirring. Stir well at room temperature for 24h. After the reaction, filter and wash with absolute ethanol until the filtrate is colorless, and the product filter cake is dried in an oven at 80° C. for 10 h to obtain the silicon dioxide (Curcumin-SiO2) of grafted curcumin. 2 ) hybrid materials.

Embodiment 2

[0027] Take 0.5g Curcumin-SiO 2 Disperse in 15ml ethanol, heat 0.1g copper acetate to 40°C and dissolve it in ethanol, then add Curcumin-SiO 2 In the ethanol dispersion, the reaction was stirred at 40-45°C for 12h. After the reaction was completed, suction filtered and washed with ethanol, and the filter cake was vacuum-dried at 40°C for 24 hours to obtain SiO 2 - Curcumin-Cu hybrid material.

Embodiment 3

[0029] Take 0.5g Curcumin-SiO 2 , dispersed in 15ml ethanol, 0.2g ZnCl 2 After heating to 35°C and dissolving with ethanol, add Curcumin-SiO 2 In the ethanol dispersion, the reaction was stirred at 40°C for 12h. After the reaction was completed, suction filtered and washed with ethanol, and the filter cake was vacuum-dried at 40°C for 24 hours to obtain SiO 2 - Curcumin-Zn hybrid material.

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Abstract

The invention relates to the field of novel functional material researches, in particular to a hybrid material of silica-curcumin and derivatives thereof as well as a preparation method of the hybrid material. The hybrid material is prepared in such a way that the curcumin or the derivatives thereof with bioactivities are grafted with silica through an amino-silane coupling agent; and the prepared hybrid material can be also further in coordinated bonding with Cu2+, Zn2+, Fe2+, Fe3+ or rare earth ions so as to form the hybrid materials containing metal ions. Compared with the curcumin per se, the prepared hybrid material has stronger antibacterial properties, thermodynamic stability and dispersibility as well as stronger fungal and bacterial phototoxicity reaction and can be used as additives of photosensitive materials, multifunctional anti-bacterial pigment, paints, and the like.

Description

technical field [0001] The invention relates to a novel antibacterial hybrid material and a preparation method thereof, in particular to an organic-inorganic hybrid material formed by grafting curcumin and its derivatives with silicon dioxide through an aminosilane coupling agent and a preparation method thereof. Background technique [0002] We know that organic-inorganic hybrid materials have both the mechanical stability of inorganic materials and the special properties of selective chemical reactions of organic materials. In the preparation of organic-inorganic hybrid materials, surface grafting has become a simple, practical and flexible method to modify the surface properties of polymers and widely used. Activated silica has a large specific surface area and strong adsorption and ion exchange capabilities, because there are a large number of silicon hydroxyl groups (Si-OH) on its surface, and a compositional structure of silicon-oxyl groups (Si-OH) on the surface of ox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N55/10A01P1/00A01P3/00
Inventor 杨录王应红杨道宾汤毅吴蓉樊忠灵孙桂明袁祎胡元彭琼刘选成杨丽张文杜佳艳陈路瑶王康琼白雪麟
Owner LESHAN NORMAL UNIV
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