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Manjula Puthenedam, PhD,

A class of engineered nanoparticlesRaman-silica-gold-nanoparticleshas been shown to be safe when administered by two alternative routes in mouse models, according to a study published April 20 in Science Translational Medicine. This marks the first step up the ladder of toxicology studies that, within a year and a half, could yield to human trials of these agents for detection of colorectal and possibly other cancers.

Theragenics has signed a non-exclusive agreement with Oncura to distribute its brachytherapy-related products in North America.

Fleming Pharmaceuticals has ramped up production of ThyroShield, a liquid potassium iodide product indicated for thyroid protection in radiation emergencies, to meet increased domestic and international demand.

A negative 18FDG PET/CT scan rules out malignancies among thyroid nodules with nondiagnostic cytology, according to a study published online April 7 in Clinical Endocrinology.

Avoiding contact laxatives is necessary to decrease intestinal artifacts in PET/CT image interpretation and a low-residue diet is not beneficial for colonic preparation, according to a study published in the April issue of Nuclear Medicine Communications.

ImaginAb and the University of California, Los Angeles (UCLA) have concluded a technology licensing agreement relating to novel fluorine chemistry for the rapid and robust labeling of proteins, peptides and biomolecules for diagnostic imaging with PET.

The American Society of Nuclear Cardiology has appointed Kathleen B. Flood as its Chief Executive Officer, effective June 1, 2011.

Ion Beam Applications (IBA) has taken a minority stake acquisition in PET Net and PET Net Solutions, providers of PET radiopharmaceuticals to nuclear medicine facilities throughout Germany.

A kidney injury biomarker called "neutrophil gelatinase-associated lipocalin" (NGAL) in urine or blood detected early subclinical acute kidney injury (AKI) and its adverse outcomes in critically ill patients who did not have diagnostic increases in serum creatinine. Early NGAL testing may therefore allow earlier conventional medical interventions or introduction of novel therapies to improve the prognosis of AKI, according to a study published April 26 in the Journal of the American College of Cardiology (JACC).

A new class of contrast agents using iron nanostructures looks to add color to the world of MRI. Li Sun, PhD, associate professor of mechanical engineering in University of Houstons Cullen College of Engineering, has received a three year, $300,000 grant from the National Science Foundation to develop this new class of MRI contrast agents.