Bacterial cellulose composite membrane for medical dressings and preparation method thereof

Abstract

The invention discloses a bacterial cellulose composite membrane for medical dressings and a preparation method thereof. The composite membrane is prepared from a pretreated membrane and a silver nitrate solution, the prepared composite membrane is soaked in the silver nitrate solution, ultraviolet reduction is conducted through irradiation of an ultraviolet lamp, nano-silver particles are generated, and the antibacterial performance of the composite membrane is further improved. The pretreated membrane is prepared from the following raw materials in parts by weight: 10 to 15 parts of modifiedchitosan microspheres, 15 to 28 parts of modified bacterial cellulose, 10 to 12 parts of acrylamide, 6 to 12 parts of N, N-methylene bisacrylamide, 2 to 5 parts of ammonium persulfate, 7 to 10 partsof sodium alginate, 4 to 6 parts of calcium chloride and 6 to 9 parts of collagen. The bacterial cellulose membrane is reasonable in component design and simple in technological operation, preparationof the bacterial cellulose membrane is effectively achieved, the bacterial cellulose membrane has excellent antibacterial performance and excellent mechanical performance, and the bacterial cellulosemembrane can be applied to the fields of medical treatment, biology and the like and is wide in application prospect.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology describes an improved type of chemical called bacteria cellulosic (BCC) that uses specialized molecules made from chitins or sugars attached together like sugar rings. These modifications make BCC more effective at capturing metal ion(Ag+) than traditional methods such as precipitation techniques. By adding these modifying agents during manufacture, this new compound becomes better able to bind metals onto its surfaces when exposed to certain conditions. Additionally, there're several ways how this modification works, making them useful in various industries including medicine, food processing, electronics, etc., providing technical benefits over existing materials.

Problems solved by technology

This patented technology describes how bacterium cells called Bacillus spores can produce different types of small molecules like enzyme or protein inside them when exposed to specific conditions. These tiny particles are made up from these special chemical structures - they hold large amounts of liquid even without any other substances added – making their way through blood vessels on Earth more difficult compared to traditional methods involving synthetic polymers.

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