Anticancer activity 1 Antineoplastic Agents 1 Apoptosis 1 Article 1 Drug Liberation 1 Fourier transform infrared spectroscopy 1 Humans 1 Hydrogen-Ion Concentration 1 Hydroxyapatite 1 Hydroxyapatites 1 MCF-7 Cells 1 MCF-7 cell line 1 Nanocapsules Nanocomposites 1 Povidone 1 Quercetin 1 Sepharose 1 Smart Materials 1 Sustained-release 1 agarose 1 antineoplastic activity 1 antineoplastic agent 1 apoptosis 1 chemistry 1 controlled drug release 1 controlled study 1 diffusion 1 drug cytotoxicity 1 drug delivery system 1 drug effect 1