Gold Nanotechnology

Gold nanoparticles are being investigated as tools for cancer imaging, targeted drug delivery, photothermal treatment, and radiation enhancement. Their value comes from tunable optical behavior, surface chemistry, and the ability to carry or concentrate other agents, not from gold acting as a universal cancer cure. This evidence-led guide explains the leading research approaches, what has reached clinical use or human trials, the biological and manufacturing barriers that remain, and how to interpret headlines responsibly. It is educational information, not medical advice, and patients should discuss treatment decisions with qualified oncology professionals.