Molecularly imprinted biodegradable polymers are receiving
considerable
attention in drug delivery due to their ability of targeted recognition
and biocompatibility. This study reports the synthesis of a novel
fluorescence-active magnetic molecularly imprinted drug carrier (MIDC)
using a glucose-based biodegradable cross-linking agent for the delivery
of anticancer drug docetaxel. The magnetic molecularly imprinted polymer
(MMIP) was characterized through scanning electron microscopy (SEM),
Fourier transform infrared spectroscopy (FTIR), X-ray diffraction
spectroscopy, and vibrating sample magnetometry (VSM). The MMIP presented
a magnetization value of 0.0059 emu g
–1
and binding
capacity of 72 mg g
–1
with docetaxel.
In
vitro
and
in vivo
studies were performed
to observe the effectiveness of the MIDC for drug delivery. The cell
viability assay suggested that the MMIP did not present toxic effects
on healthy cells. The magnetic property of the MMIP allowed quick
identification of the drug carrier at the target site by applying
the external magnetic field to mice (after 20 min of loading) and
taking X-ray images. The novel MMIP-based drug carrier could thus
deliver the drug at the target site without affecting the healthy
cells.