Instructions for use of bacterial cellulose dispersion

Bacterial cellulose dispersion is a suspension containing bacterial cellulose (BC), which has good biocompatibility, high strength and excellent hygroscopicity. It has a wide range of uses in biomedical, food packaging, cosmetics and other industrial applications. The following are general instructions for using bacterial cellulose dispersion:

1. Storage and processing

• Storage conditions : Bacterial cellulose dispersion should be stored in a refrigerated environment at around 4°C to avoid exposure to sunlight or high temperature environments to prevent degradation or microbial contamination.

• Treatment method : Clean tools and containers should be used during processing to keep the operating environment clean and prevent external contaminants from entering the dispersion liquid.

2. Dispersion and homogenization

• Stirring and homogenization : Before use, the bacterial cellulose dispersion usually needs to be fully stirred or homogenized to ensure the uniform distribution of cellulose in the solution. It can be processed using a magnetic stirrer, an ultrasonic processor or a high-pressure homogenizer .

• Adjust the concentration : Depending on the application requirements, the concentration of the dispersion can be adjusted by adding solvents (such as water, ethanol or other appropriate solutions). Be careful to avoid over-dilution to avoid affecting the functional performance of cellulose.

3. Application method

• Biomedical Applications : In wound dressings or tissue engineering, bacterial cellulose dispersions can be used as matrix material. The dispersion is uniformly coated on the substrate surface, or a cellulose film or hydrogel is prepared by a mold forming process.

• Food packaging : Bacterial cellulose dispersion can be used in the preparation of edible films or packaging materials. By controlling the drying process, a cellulose film with excellent barrier properties can be prepared.

• Cosmetics : In cosmetics, bacterial cellulose dispersions can be added to the formula as thickener or moisturizer. Pay attention to controlling the amount of use to ensure the texture and stability of the product.

4. Safety and environmental considerations

• Biocompatibility : Bacterial cellulose has good biocompatibility and can be used in products that directly contact the human body, and has no toxic effects on the environment.

• Waste treatment : The waste bacterial cellulose produced after use should be treated according to laboratory or production standards. Biodegradation or industrial incineration can be used to treat it to avoid pollution of the environment.

5. Quality control

• Uniformity Detection : Use optical microscope or scanning electron microscope (SEM) to detect the uniformity of cellulose distribution in the dispersion.

• Concentration and Viscosity Measurement : Regularly measure the concentration and viscosity of the dispersion to ensure that it meets the standards of use. Measurements can be made using a viscometer or a density meter.

6. Things to note

• During the operation, try to avoid long-term exposure to the air to prevent the bacterial cellulose dispersion from deteriorating or being contaminated.

• If the dispersion is delaminated or precipitated, mix well before use to restore its uniformity.

• During use, the concentration and viscosity of the dispersion should be adjusted according to the specific application requirements to achieve the best effect.

These instructions can help you better use bacterial cellulose dispersions. If you have any other specific questions or needs, you can contact me at any time!