专利号:WO-2024055132-A1 优先权日:2022-09-12 标 题 :Method for the synthesis of a branched copolymer of hyaluronic acid and poly(lactic-co-glycolic) acid 发明人:VILOS ORTIZ CRISTIAN ANDRÉS; ZACCONI FLAVIA CRISTINA MILAGRO; SALAZAR MUÑOZ JAVIER ALONSO 权利人:UNIV TALCA; UNIV PONTIFICIA CATOLICA CHILE; FUND CENTRO DE NANOCIENCIA Y NANOTECNOLOGIA 摘要:The present invention provides a method for the synthesis of a branched copolymer of hyaluronic acid (HA) and poly(lactic-co-glycolic acid) (PLGA), and the branched copolymer thus obtained (HA-g-PLGA). Said method comprises activating the PLGA with coupling reagents in a water miscible solvent; solubilizing the HA in a phosphate buffered saline solution; and adding the activated PLGA solution dropwise to the solution with HA to obtain the branched copolymer. The advantages of the present method are that it uses environmentally friendly conditions and allows the copolymer to be synthesized and purified in less than a week under laboratory conditions. In addition, the branched copolymer obtained does not present traces of any of the reagents used for its synthesis, so it can be used directly in the development of applications for human use.
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