Figure 2

SEM micrographs of (a) MSN and (b) MSN-HP-DOX@CeO2. Scale bar. 100 nm; HRTEM micrographs of (c) MSN and (d) MSN-HP-DOX@CeO2. Scale bar: 100 nm.
SEM micrographs of (a) MSN and (b) MSN-HP-DOX@CeO2. Scale bar. 100 nm; HRTEM micrographs of (c) MSN and (d) MSN-HP-DOX@CeO2. Scale bar: 100 nm.