“…Studies have shown that the hyaluronic acid is not only a lubricant with dermatologic and ophthalmologic applications but also can be used in a control system for drug release, as in anesthesia prolongation in bones and joints (GOLDENHEIN et al, 2001), arthropathy treatment (SUZUKI et al, 2001), chemotherapeutic agents in surgical implants (AEBISCHER et al, 2001), drug release in dental caries (SUHONEN & SCHUG, 2000), controlled antigen release for immunotherapy (PARDOLL et al, 2001), and contact lenses (BEEK et al, 2008), and as a copolymer with anti-thrombotic properties in vascular applications (XU et al, 2008).…”