Abstract
In this study, ZnO quantum dots (ZnO@QDs) were synthesized and functionalized with 2nd generation poly amido amine (2GPD) using 3-amino-propyl tri-methoxy silane as the initiator core, facilitated by tetramethylammonium hydroxide (TMAH) to enhance stability against oleate coating. Concurrently, a mesoporous substrate with a unique morphology was developed as a drug reservoir for doxorubicin loading. ZnO quantum dots displayed photoluminescence radiation, with dimensions ranging from 5 to 7 nm and exhibiting spherical morphology. The cubic structure of the synthesized mesoporous nanocatalysts was also confirmed. Brunauer-Emmett-Teller analysis indicated a multidimensional porous structure of the nanocarriers, while zeta potential analysis showed a stable system (approximately -9.6 mV). Fourier transform infrared spectroscopy, X-ray diffraction, and energy dispersive spectroscopy corroborated these findings. Drug release studies demonstrated sustained release under acidic conditions (pH 5.5), with an efficiency of approximately 94%. These results highlight the potential applications of this nanosystem for controlled drug delivery, underscoring its practical implications in the field of nanotechnology.
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