nanotechnology

TORONTO (November 19, 2009) – In the drive to improve early detection and treatment of cancer, a pair of Toronto scientists has developed a unique technology that combines contrast agents with targeted, long-lasting nano-particles for use in multiple medical imaging platforms.

While contrast agents are routinely injected into patients to enhance the quality of medical images, different agents are currently required for various imaging modes (e.g. MRI, CT, PET) each with inherent strengths and limitations. By combining more than one contrast agent into a nano-particle for use in multiple types of imaging, not only are physicians and researchers able to use lower doses of contrast agents (with lower toxicity) but the nano-particle also enables targeted delivery to, and retention by, specific tumours.