Bi3 +‐hyaluronatecomplexeswereprepared(NO3)3inalka linecondition ﹒ Thecomplexeswerecharacterizedbye,FT‐IR,13CNMR,CD,XRD,TGAandXPS ﹒ AlltheanalysisconfirmedthatinBi3 +‐hyaluronatecomplexes。 ......