Metallo-Therapy (MT) is developing contrast agents that enable precise tumor detection and monitoring using CT imaging. MT's proprietary gold nanoparticles (GNP) accumulate in malignant tumors and remain therefor a few weeks. Due to their low toxicity and contrasting function, the GNPs can function as nano-markers, supporting and enhancing multiple applications in the management of cancer patients undergoing radiotherapy. Metallo-Therapy is supported by the Chief Scientist of the Israeli Ministry of Economy and by Arkin Holdings, an investment fund focused on innovative technologies in the healthcare market.