The Potential of Next-generation Multi-functional Nanoplatforms for Breast Cancer

The next-generation nanoparticles overcome the drawbacks of early nanoplatforms by integrating multiple functions, such as drug delivery, controlled drug release, and combination therapy, into a single system. This study examines the biomedical applications of quantum dots, carbon nanotubes, superparamagnetic iron oxide nanoparticles, and layered double hydroxides for the delivery of breast cancer drugs. They are termed as "nextgeneration" nanoparticles, as they are advanced nanocarriers that offer a comprehensive and alternative approach towards breast cancer treatment, providing enhanced specificity and efficacy compared to their predecessors. The development of these nanoplatforms has significantly enhanced drug bioavailability and reduced toxicity. A comprehensive analysis of a nanotechnology-based drug delivery system was conducted. The keywords used for this review were "Breast Cancer", "Targeted Drug Delivery", "Quantum Dots", "Carbon Nanotubes", "Layer Double Hydroxides", and "Superparamagnetic Iron Oxide Nanoparticles". The inclusion criteria consisted of studies focusing on breast cancer, targeted drug delivery, and therapeutic applications of these nanocarriers. In contrast, exclusion criteria included studies focusing on the synthesis of nanocarriers and the diagnostic applications of these nanostructures. The study underscores their mechanisms, limitations, and future development directions. Additionally, the study tracks the evolution of the nanocarriers since their early discovery. Next-generation nanocarriers (QDs, CNTs, SPIONs, and LDHs) have strong therapeutic potential owing to their precisely engineered properties, such as size, shape, morphology, and surface modifications. Their trigger-initiated drug release mechanisms enable targeted delivery with a better rate of tumor penetration, while their ability to co-deliver multiple therapeutic agents addresses drug resistance issues and provides synergistic effects. Comparative analyses have revealed that these advanced nanoplatforms significantly outperform early-generation carriers in terms of bioavailability, reduced toxicity, and treatment efficacy across various breast cancer types. Next-generation nanoplatforms offer unprecedented opportunities for targeted and efficient cancer treatment. Continued research and innovation are necessary to address existing challenges and to optimize their therapeutic potential for clinical applications.