Abstract
The surface-grafted mesoporous silica nanoparticles attract interest in drug delivery, owing to their high drug loading and controlled release potential to the target sites. In this paper, we propose the synthesis of mesoporous silica nanoparticles and their surface grafting using melamine groups for pH-responsive release of anticancer drugs. A model anticancer drug, 5-fluorouracil (5-Fu) was used to encapsulate into the melamine-grafted mesoporous silica nanoparticles (M−MS/5-Fu NPs) using the solvent immersion method. pH and temperature-responsive release behavior of the M−MS/5-Fu NPs were verified at different pH (pH 7.4, 6.5, and 4.0). Further, the in vitro cytotoxicity of the prepared samples was also evaluated on the MCF-7 cell line.
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