| A Novel poly [2-hydroxyethyl methacrylate-Lactide-dimethylaminoethyl
methacrylate quaternary ammonium alkyl halide] [P(HEMA-LAMADQUAT)] copolymer was synthesized through combination of ring
opening polymerization (ROP) and ‘free’ radical initiated polymerization
methods. This newly developed copolymer was fully characterized by
FT-IR, 1HNMR and 13CNMR spectroscopy. Micellization of the copolymer
was performed by dialysis membrane method and obtained micelles
were characterized by FESEM, dynamic light scattering (DLS), zeta
potential (ξ), and critical micelle concentration (CMC) measurements.
This copolymer was developed with the aim of co-delivering two
different anticancer drugs: methotrexate (MTX) and chrysin. In vitro
cytotoxicity effect of MTX@Chrysin-loaded P(HEMA-LA-MADQUAT) was
also studied through assessing the survival rate of breast cancer cell
line (MCF-7) and DAPI staining assays. Cationic micelle (and surface
charge of + 7.6) with spherical morphology and an average diameter
of 55 nm and CMC of 0.023 gL−1 was successfully obtained. Micelles
showed the drug loaded capacity around 87.6 and 86.5% for MTX and
Chrysin, respectively. The cytotoxicity assay of a drug-free nanocarrier
on MCF-7 cell lines indicated that this developed micelles were suitable
nanocarriers for anticancer drugs. Furthermore, the MTX@Chrysinloaded micelle had more efcient anticancer performance than free dual
anticancer drugs (MTX @ chrysin), confrmed by MTT assay and DAPI
stainingmethods. Therefore, we envision that this recently developed
novel micelle can enhance the efcacy of chemotherapeutic agents,
MTX and Chrysin, combination chemotherapy and has the potential
to be used as an anticancer drug delivery system for in vivo studies.
Therefore, this recently developed novel micelle can enhance the
efcacy of chemotherapeutic agents, MTX and Chrysin, combination
chemotherapy and has the potential to be used as an anticancer drug
delivery system for in vivo studies. |