Injectable in situ forming microgels of hyaluronic acid-g-polylactic acid for methylprednisolone release

► Grafting of polylactic acid (PLA) to hyaluronic acid (HA). ► In situ microgels in Dulbecco's phosphate buffer solution pH 7.4. ► Evaluation of dissolution and chemical or enzymatic degradation. ► In vitro cell compatibility studies. ► Prolonged release of methylprednisolone.