Hyaluronicacid(HA)isachargedmacromolecule,knownformorethan70years ﹒ Itisstruc turallythesimplestandthemostfreq [ 1 ] ﹒ HA consistsofrepeatingdisaccharideu‐glucosamineandD‐glucoronicacid ﹒ HAoc cursintheintracellularmatrixofmo。Thecurrentworkaimstopreparean ......