... in animal and human physiological activity, in skin, joints, synovial fluid, umbilical cord, aqueous and eye vitreous in distribution. Molecular ... weight is 500,000 ~ 730000 Dalton, its solution with high visco-elastic and profile, the auxiliary agents for eye ... also is a kind of solution of HA non-newton fluid, with good viscoelastic and flow deformation. Based on the special performance ...