Researchers at University of Michigan are investigating the use of circularly polarized light to help detect the presence of proteins and DNA strands that serve as biomarkers for cancer and other diseases. Their technique relies on tagging the target molecules with other molecules that are carrying a coating reflective of circularly polarized light. This kind of light being naturally rare is easily detected, but the equipment is large and expensive.
To overcome this problem The U of M team developed a special film that helps produce circularly polarized light, avoiding the use of traditional components and allowing for small devices that can be used at the patient bedside.
The team published results of their developments in Nature Materials.
