Hyaluronic acid is a human mesenchymal cells, vitreous, synovial joints such as the main component of connective tissue in the body function of water, maintain the extracellular space, osmotic pressure, lubrication, and promote cell repair the important physiological functions.
In a hyaluronic acid molecule，Pharmaceutical grade hyaluronic acid，Contains a large number of carboxyl groups and hydroxyl groups in water;
Hydrogen bonds between molecules and molecules are formed in the solution, which enables it to have strong water retention and can bind to more than 400 times its own water.
At high concentration, the aqueous solution has obvious viscoelasticity due to the complex three-stage network structure formed by intermolecular interaction.
As the main component of intercellular matrix, hyaluronic acid is directly involved in the regulation of electrolyte exchange inside and outside cells, and plays the role of filter of physical and molecular information.
Macromolecular hyaluronic acid can inhibit cell migration, proliferation, differentiation and phagocytosis, while small hyaluronic acid can promote cell migration, proliferation, differentiation and phagocytosis.
Hyaluronic acid has unique physicochemical properties and physiological functions and has been widely used in medicine.