Positron emission tomography plays a pivotal role for monitoring the distribution and accumulation of radiolabeled nanomaterials in living subjects. The radioactive metals are usually connected to the nanomaterial through an anchor, a so-called chelator, but this chemical binding can be omitted if nanographene is used, as American scientists report in the journal Angewandte Chemie. The replacement of chelator-based labeling by intrinsic labeling significantly enhances the bioimaging accuracy and reduces biases. {read more here}

In a single-center study at a tertiary care center staffed with experienced dementia specialists, the majority of 20 patient-caregiver pairs undergoing amyloid PET imaging said they felt relief from the scans, whether they were positive or negative, Joshua Grill, PhD, of the University of California Irvine, and colleagues reported online in Alzheimer’s & Dementia. {read more here}

Eating a handful of grapes twice a day could stave off the ravages of Alzheimer’s disease and boost memory, new [PET] research claims.  Scientists discovered that grapes protected against decline in Alzheimer-related areas of the brain. {read more here}

In the featured article from the February 2017 issue of the Journal of Nuclear Medicine, researchers document the first-in-human application of a new imaging agent to help find prostate cancer in both early and advanced stages and plan treatment. The study indicates that the new agent — a PET radiotracer — is both safe and effective. {read more here}