dendrimer with nanodrug and bond

font circle pattern line design symmetry art purple text screenshot number organ cartoon glass brand toy flower diagram idendrimer drug delivery rendering isolated dendrimer nanodrug bond dendrimer dendrimers dendrite dendritic dendron drug delivery structure drugs entrapment formula medicine molecular molecule nanopolymer nanobased nanoconstruct nanoscale nanostructure nanotechnology release research science specific stability system targeting 3d atom chemical chemistry covalent