Nano-porous graphene/nitrocellulose membrane capable of resisting bacteria and promoting wound healing and preparation method thereof
A nitrocellulose membrane and nitrocellulose technology are applied in the fields of resistance to vector-borne diseases, medical science, and absorbent pads, which can solve problems such as the inability to effectively improve the gas-permeable wound healing of nitrocellulose membranes, and achieve the goal of promoting Effects of wound healing, good toughness and biocompatibility, and broad-spectrum antimicrobial properties
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Embodiment 1
[0025] (1) Mix the graphene oxide dispersion with the zinc nitrate solution so that the final concentration of the former is 4 g / L, and the final concentration of the latter is 800 g / L, stir and mix evenly, the mixed solution is filtered with filter paper, and then the filter paper and The intercepted mixture was dried in an oven at 55°C, then ignited in an alcohol lamp and fully incinerated. The incineration product was repeatedly washed with 10% hydrochloric acid, then washed with distilled water until the pH was neutral, and the nanoporous graphene was collected by centrifugation;
[0026] (2) Take 0.003 g of nanoporous graphene prepared in step (1), add it to 250 μL ethanol, and add 750 μL nitrocellulose solution (collodion; content: w / % 4-8%) after ultrasonic dispersion, Continue to sonicate and mix evenly to obtain a mixed solution;
[0027] (3) The mixed solution prepared in step (2) was added dropwise to a 35 mL petri dish, and air-dried to form a film to obtain a nan...
Embodiment 2
[0029] (1) Mix the graphene oxide dispersion with the zinc nitrate solution so that the final concentration of the former is 6 g / L, and the latter is 800 g / L, stir and mix evenly, the mixed solution is filtered with filter paper, and then the filter paper and The intercepted mixture was dried in an oven at 55°C, then ignited in an alcohol lamp and fully incinerated. The incineration product was repeatedly washed with 10% hydrochloric acid, then washed with distilled water until the pH was neutral, and the nanoporous graphene was collected by centrifugation;
[0030] (2) Take 0.001 g of nanoporous graphene prepared in step (1), add it to 250 μL ethanol, and after ultrasonic dispersion, add 750 μL nitrocellulose solution (collodion; content: w / %4-8%) to continue Ultrasound and mix uniformly to obtain a mixed solution;
[0031] (3) The mixed solution prepared in step (2) was added dropwise to a 35mL petri dish, and air-dried naturally to form a nanoporous graphene / nitrocellulose...
Embodiment 3
[0033] (1) Mix the graphene oxide dispersion with the zinc nitrate solution so that the final concentration of the former is 4 g / L, and the latter is 600 g / L, stir and mix evenly, the mixed solution is filtered with filter paper, and then the filter paper and The intercepted mixture was dried in an oven at 55°C, then ignited in an alcohol lamp and fully incinerated. The incineration product was repeatedly washed with 10% hydrochloric acid, then washed with distilled water until the pH was neutral, and the nanoporous graphene was collected by centrifugation;
[0034] (2) Take 0.003 g of nanoporous graphene prepared in step (1), add it to 200 μL ethanol, and after ultrasonic dispersion, add 800 μL nitrocellulose solution (collodion; content: w / %4-8%) to continue Ultrasound and mix uniformly to obtain a mixed solution;
[0035](3) The mixed solution prepared in step (2) was added dropwise to a 35mL petri dish, and air-dried naturally to form a film to obtain a nanoporous graphen...
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