Figure 2

(a) SEM image of HMME/PLGA microcapsule. (b) TEM image of HMME/PLGA microcapsule. (c) CLSM image of HMME/PLGA microcapsule. (d,e) Size distributions and zeta potential of HMME/PLGA microcapsule. (f) Ultraviolet visible spectrum of HMME and HMME/PLGA microcapsule.