With the popularity of global environmental protection concepts and the growth of demand for biomedical materials, Nanocellulose, as a green and sustainable nanobiomaterial, is leading the wave of innovation in materials science due to its unique biocompatibility and degradability. This article will deeply analyze the two core advantages of nanocellulose and reveal its wide application potential in multiple fields. 1. Nanocellulose biocompatibility: natural friendly, promoting life and health 1.1 Definition and importance of biocompatibility Biocompatibility refers to the ability of materials to maintain a good coexistence state when they come into contact with biological tissues or cells, and does not cause immune rejection, toxicity or inflammatory reactions. For medical materials, food contact materials and other fields, biocompatibility is a basic evaluation indicator. 1.2 Natural advantages of nanocellulose. Natural source, structural stability. Nanocellulose is derived from plant cellulose. It is the richest natural polymer on the earth.

1. Introduction to Nanocellulose Nanocellulose is a nano-scale fiber material obtained by mechanical, chemical or enzymatic treatment of natural cellulose. Its unique nanostructure gives it high strength, high specific surface area and good dispersion, becoming an important boost to the performance improvement in the adhesive field. 2. The mechanism of action of nanocellulose in adhesives enhances structural strength. Nanocellulose has high Young's modulus and tensile strength. After being added to the adhesive system, it can form a fine nanonetwork structure, effectively improving the overall mechanical properties of the adhesive. Improve rheological properties The high specific surface area and surface activity of nanocellulose can adjust the viscosity and fluidity of the adhesive, achieving better construction performance and coating uniformity. Enhance the interface binding force Nanocellulose is rich in hydroxyl groups, which can form hydrogen bonds or chemical bonds with the surface of the substrate, enhance the interface binding force between the adhesive and the attached material, and improve bond strength and durability.

What is bacterial cellulose? Bacterial Cellulose (BC) is a high-purity cellulose produced by specific microorganisms such as Gluconacetobacter xylinus and other acetates under contamination conditions. Compared with traditional plant cellulose, bacterial cellulose does not contain impurities such as lignin and hemicellulose, and the fibers are arranged in order and have higher crystallinity, so they have natural advantages in physical properties and functionality. Principle of the formation of nanoscale three-dimensional network structure One of the core characteristics of bacterial cellulose is its automatically formed nanoscale three-dimensional network structure during growth. The formation of this structure originates from the conversion of carbon sources such as glucose into a single cellulose microfiber filament with a diameter of about 20 to 100 nanometers through extracellular synthesis pathways, and is continuously superimposed and interwoven on the surface of the growth liquid, and finally constructed a highly versatile one.