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Bacterial cellulose/emu oil composite film and preparation method thereof

A technology of bacterial cellulose film and bacterial cellulose, which is applied in the field of bacterial cellulose/emu oil composite film and its preparation, can solve the problem that hydrophobic emu oil is difficult to compound completely, and achieve good biocompatibility, method simple effect

Active Publication Date: 2022-05-17
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that it is difficult to complete the composite of hydrophobic emu oil and hydrophilic materials, the invention provides a bacterial cellulose / emu oil composite membrane and its preparation method

Method used

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  • Bacterial cellulose/emu oil composite film and preparation method thereof
  • Bacterial cellulose/emu oil composite film and preparation method thereof
  • Bacterial cellulose/emu oil composite film and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 0.1:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried for 12 hours to prepare bacterial cellulose / emu oil composite film.

Embodiment 2

[0031] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 0.9:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried to prepare bacterial cellulose / emu oil composite film.

Embodiment 3

[0033] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 2:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried to prepare bacterial cellulose / emu oil composite film.

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Abstract

The invention discloses a bacterial cellulose / emu oil composite membrane and a preparation method thereof. The composite film is formed by mixing bacterial cellulose / emu oil, and the emu oil in the composite film is uniformly dispersed in the bacterial cellulose nanofiber matrix. The present invention uses cetyltrimethylammonium bromide as an emulsifier to emulsify the emu oil and then mix it with the bacterial cellulose. The emu oil acts as a strengthening material and an antibacterial material for the mechanical properties of the cellulose film in the composite film , by controlling the mass ratio of emulsifier and emu oil to 0.1-2:5, and the immersion time and temperature of bacterial cellulose in emu oil emulsion, the thickness, mechanical strength, antibacterial effect and other properties of the composite film were tested. regulation. The method of the invention is simple, and the prepared composite film has good biocompatibility, and can be used as an antibacterial material in the fields of tissue engineering, biosensor coating material, cosmetics, skin care products, medical dressings and the like.

Description

technical field [0001] The invention relates to a bacterial cellulose / emu oil composite film and a preparation method thereof, belonging to the technical field of antibacterial materials. Background technique [0002] Bacterial cellulose (BC) is a high-performance microbial synthetic material produced by bacteria such as Acetobacter genus. Compared with plant cellulose, it has no accompanying organisms such as lignin, pectin and hemifiber, and has high crystallinity. (up to 95%, plant cellulose is 65%) and high degree of polymerization (DP value 2000-8000), its elastic modulus is several times to dozens of times higher than that of ordinary plant fibers, and its tensile strength is high. In addition, the unique properties of bacterial cellulose such as high biocompatibility, adaptability and good biodegradability make it widely used in the fields of biomedicine, tissue engineering, food and textiles. [0003] Emu oil is extracted from the fat sac on the back of the emu. It ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/00C08L1/02
CPCC08J7/00C08J2301/02C08J2491/00
Inventor 孙东平胡颖孙汴京张衡陈啸陈春涛
Owner NANJING UNIV OF SCI & TECH
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