Magnetic Nanoparticles for Targeted Drug Delivery in Cancer Therapy: A Physics-Driven Approach to Precision Oncology

Abstract

Magnetic nanoparticles (MNPs) have emerged as a groundbreaking tool in precision oncology, enabling non-invasive and highly targeted drug delivery mechanisms. This paper presents an in-depth study of the underlying physics of magnetism in nanoparticles, their synthesis, surface functionalization, and their controlled movement within biological systems for cancer therapy. Emphasis is placed on superparamagnetic behavior, magnetic field-guided navigation, and interactions with biological environments. The application of MNPs in localized therapy aims to minimize systemic toxicity, improve therapeutic efficiency, and pave the way for personalized medicine. The paper also explores current challenges, recent advancements, and future directions for the clinical translation of MNP-based drug delivery systems.

Keywords: Magnetic Nanoparticles, Targeted Drug Delivery, Cancer Therapy, Superparamagnetism, Magneto-Mechanics, Oncology