Tuesday, 3 May 2016
Microbubbles, drawn by magnets, deliver chemo with ultrasound
Scientists in Singapore have developed magnetic micro-sized bubbles with cancer drugs on their surface that can be guided to gather around a tumor and then release their payload.
Filled with gas, the microbubbles can be coated with particles of both cancer drugs and iron oxide. The iron gives them their magnetic characteristic, allowing a robotic surgeon to guide the bubbles to a tumor’s location and thereby cutting back side effects associated with free chemotherapy in the bloodstream.
Once they have reached a tumor, the surgeon would then apply ultrasound to vibrate the microbubbles, shaking loose the drug, which is then close enough to enter the cancer cells more effectively.