Bacterial Cellulose ( BC ) is a natural nanopolysaccharide material synthesized by fermentation by microorganisms such as Bacterial Cellulose. It has extremely high moisturizing and water absorption due to its unique three-dimensional nanofiber network structure . This characteristic makes it irreplaceable application value in the fields of medical care, cosmetics, and food.

1. Molecular and structural basis of moisturizing and water absorption properties of bacterial cellulose

1. Nano-scale three-dimensional network structure

The fiber diameter of bacterial cellulose is only about 20-100 nanometers, forming a highly interwoven and evenly distributed three-dimensional porous network structure. This structure gives it a great specific surface area and pore volume, significantly improving the opportunity and space for the material to come into contact with water molecules, thereby achieving efficient moisture adsorption and storage.

2. Hydroxy functional groups and hydrogen bond network

The abundant hydroxyl ( -OH ) groups on the bacterial cellulose molecular chain can form strong hydrogen bonds with water molecules and stabilize the binding of water molecules. This chemical property not only promotes bacterial cellulose to absorb water quickly, but also effectively prevents moisture from evaporating too quickly, achieving a long-term moisturizing effect.

3. Synergistic effect of physical adsorption and chemical bonding

The water absorption process of bacterial cellulose has a dual mechanism of physical pore adsorption and chemical bonding. The voids between nanofibers can accommodate a large amount of free water, while the hydrogen bond between hydroxyl groups and water molecules provides stable binding force. The two complement each other and give bacterial cellulose superior water absorption and water holding capacity.

2. Multi-field application value of bacterial cellulose moisturizing and water absorption

1. Medical Trauma Dressing

Dressings made of bacterial cellulose promote the migration and regeneration of wound cells and shorten the healing time by maintaining a moist healing environment. At the same time, its high water absorption can effectively manage wound exudate and reduce the risk of infection and complications. Its good flexibility and mechanical strength make the dressing more suitable for complex wounds and relieves patients' pain and secondary damage.

2. Personal Care and Cosmetics

With its excellent moisturizing ability, bacterial cellulose is widely used in facial masks, lotions, gels and other products, which can deeply lock water, improve skin barrier function, and increase skin elasticity and gloss. It is biocompatible and suitable for sensitive skin.

3. Food Industry

As a natural moisture regulator, bacterial cellulose can improve the texture and taste of food and prolong the shelf life. In addition, its high water absorption makes it an ideal additive in low-calorie foods and dietary fiber products.

3. Technical challenges and innovation directions

Although bacterial cellulose has obvious advantages in moisturizing and water absorption, its large-scale production and cost control are still key factors restricting industrialization. In recent years, scientific research and industry have continuously improved product performance and economics by optimizing fermentation processes, improving strain yields, and developing efficient purification and functionalization technologies.

In addition, the structural design and surface chemical modification of nanofiber networks have become the focus of research on improving water absorption speed, water absorption and water holding time. by adjusting the pore size, enhancing hydrogen bond density, or introducing hydrophilic The water management performance of bacterial cellulose can be customized / hydrophobic regulatory groups.

4. Technical advantages of Nanjing Tianlu Nano Technology Co., Ltd.

Nanjing Tianlu Nano Technology Co., Ltd. has deeply engaged in the research and development of nanocellulose technology, and has advanced bacterial cellulose fermentation and purification equipment, which can produce high-purity and high water absorption bacterial cellulose products. The company continues to innovate surface modification technology, optimizes the water absorption and moisturizing effectiveness of materials, and widely serves medical dressings, personal care and functional food fields.

Tianlu Nano Technology adheres to the concept of ' green technology, innovation in the future ' and is committed to providing customers with high-performance nanomaterial solutions to promote the bacterial cellulose industry to a higher level.

Conclusion

Bacterial cellulose has demonstrated excellent moisturizing and water absorption due to its unique nanostructure and chemical properties, making it the preferred green functional materials in many fields. With technological breakthroughs and industrial upgrading, its application scope will continue to expand, helping to achieve new goals of sustainable development and healthy life.