How to defeat cancer using nanomedicine?
There are few ways in which we can destroy growing cancer in a human body or body of animals. Injected nanoparticles of cadmium selenide seep into cancer tumors. When they are exposed to ultraviolet light, they glow. This enables surgeon to see the glowing tumor, and use it as a guide for more accurate tumor removal. In this procedure, the nanomedicine only helps in marking the tumor, but they can also help in detection of cancer in body. Jim Heath, a Caltech chemist, is developing nano-sized sensors that can detect and diagnose cancer in the early stages, when there are only a few thousand cancer cells in the body. A few drops of the patient’s blood are placed on the sensor test chip. The chip contains tens of thousands of nanowires that can detect proteins and other biomarkers left behind by cancer cells. Cancer is curable in the early stages, so this test could save lives once perfected. Chemotherapy or radiation are a sometimes effective ways of killing cancer cells, but they are a
