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(a) The percentage of DOX loaded onto each NP; (i) SiO2@Ag@cysteinyl-β-CD NPs and (ii) SiO2@Ag@EDA-β-CD NPs after adding a DOX solution (44 µg/mL) to the NPs. (b) The quantity of DOX released from the NPs at room temperature over 48 h. DOX was released more slowly from SiO2@Ag@cysteinyl-β-CD NPs.
