CROSS-LINKED HYALURONIC ACID AND METHOD FOR PRODUCING THE SAME.

摘要

The invention relates to a cross-linked hyaluronic acid that can be produced by a method comprising: (a) activating a hyaluronic acid; (b) reacting the activated hyaluronic acid with a cross-linking agent containing an oligo- or polypeptide in a reaction medium at a pH of between 8 and 12 in order to obtain a cross-linked hyaluronic acid; (c) adjusting the pH of the reaction medium to a value between 5 and 7; and (d) precipitating the cross-linked hyaluronic acid in an organic solvent. The invention also relates to the above method, to a hydrogel obtained from said cross-linked hyaluronic acid, and to the use of the cross-linked hyaluronic acid for the production of implants that can essentially be used in plastic surgery.