Rheological properties of hyaluronic acid based solutions

Hyaluronic Acid (HA) is present in all soft tissues of higher organisms, and in particularly high concns. in the synovial fluids and vitreus humor of the eye. Solns. of purified high mol. wt. HA demonstrate interesting rheol. properties making them very attractive for viscosupplementation and viscosurgery applications. In the present study, solns. of HA at different mol. wt., ester of HA and crosslinked HA at different levels of crosslinking were investigated to det. the rheol. properties.