Activity Tracers

Do tracers trace?

O NLY A FEW YEARS after the discovery of artificial radioisotopes by the Joliot-Curies in 1934, de Hevesy, Chievitz and Ottesen used tracers in hematology. Even today, there are few areas in clinical medicine where as many radioisotopes are used both for investigative and diagnostic purposes as in hematology. Consequently, the methods of tracer studies are often described in the hematologic jou...

PET tracers and radiochemistry.

This paper provides a brief review of the radiochemistry of radiopharmaceuticals used in positron emission tomography (PET). It includes some history of PET, the basic formation of radionuclides in a cyclotron target, the processing of the precursor molecules into a useful PET radiotracer and the clinical significance and outlook for PET radiotracers. This review is based on a series of recent ...

Radioactive Tracers in Biology

Everybody talks about the atom, but few have more than a Sunday supplement knowledge of the simpler aspects of nuclear phenomena. The author, M.D. and Ph.D., and a member of the staff at Brookhaven, treats the story of the atom from its earliest historical conceptions to its possibilities in future war and peace. The style is of the simplest; no previous familiarity with mathematics or physics ...

Radioactivation Analysis and Isotopic Tracers

Lipid tracers of mycoplasma phylogeny.

Comparison of the lipid composition between members of the Mycoplasmatales reveals a striking diversity of lipid structures, not only between the six genera but among species within the same genus. This is in contrast to nearly all other bacterial groups in which members of the same genus possess essentially the same lipids. There are in fact more similarities between lipids of a given species ...