Abstract
Daunorubicin (DAU) is a chemotherapy drug approved for the treatment of some cancers. However, the clinical compatibility of DAU is limited due to its lack of specificity and its highly toxic effects, which interfere with normal cells. This toxicity can be reduced with nanocarriers and targeted drug delivery systems. In this study, to develop the drug delivery of DAU, the surface of synthesized nanoparticles was modified by folic acid to target cancer cells optimally. Encapsulation of DAU in protein sodium caseinate (NaCAS) was done by adding calcium ions to bring the casein (CAS) in the solution to a micellar structure to synthesize dense nanoparticles. Fourier-transform infrared spectroscopy transmission, fluorescence spectroscopy, UV-Vis spectroscopy, field emission scanning electron microscopy, and zeta potential studies designed and distinguished the synthesized nanocomplexes. The results showed that CAS nanoparticles successfully encapsulated DAU, and the protein surface was targeted by folic acid. Light scattering analysis determined that the particles with a scattering index number of 306.0 and an average size of 8.117nm were synthesized. The zeta potential of CAS micelles is more harmful than CAS nanoparticles. This is because calcium ions are added during the formation of CAS nanoparticles during the drug-loading stages. These studies prove that the synthesized "NaCAS-DAU" and "NaCAS-DAU-folic acid" complexes can be favorable carriers in the targeted drug delivery of cancer drugs.
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