Directly Radiolabeled Nanographene for PET Imaging

Nanographene Interacting with Bacteria
MRI, CT and PET imaging often rely on contrast agents to provide better pictures. Contrast agents, such as DTPA (diethylenetriaminepentaacetic acid) are able to deliver a radioactive marker which then shows up in the image. But, contrast agents can become detached from the marker; so researchers at the University of Wisconsin-Madison decided to study nanographene as a more suitable material for the radiolabel. They found, “it was possible to directly and stably attach the copper isotope to reduced graphene oxide nanomaterials stabilized by polyethylene glycol (PEG), and this system was used for several bioimaging tests including the detection of tumors in mice.” This new approach offered quick and continuing uptake in tumors, and was quite simple to make. MORE
Image Credit: Nanographene Interacting with Bacteria