When the aqueous solution temperature reached the lower critical solution temperature (LCST), the PNIPAAm chain in DgP turned from hydrophile to hydrophobe, which leaded to the fonnation of micelle with PNIPAAm as core and dextran as shell.

• 当水溶液的温度达到低临界溶解温度(LCST)时,DgP中的PNIPAAm组分发生亲疏水相变,DgP分子相互聚集,形成了以PNIPAAm为内核,Dextran为外壳的稳定的胶束。