objectives: the aim of this research was the development of 111in-labeled porphyrins as possible radiopharmaceuticals for the imaging of tumors. methods: ligands, 5, 10, 15, 20-tetrakis (3, 5-dihydroxyphenyl) porphyrin) (tdhpp), 5, 10, 15, 20-tetrakis (4-hydroxyphenyl) porphyrin (thpp) and 5, 10, 15, 20-tetrakis (3,4-dimethoxyphenyl) porphyrin) (tdmpp) were labeled with 111incl3 (produced from ...

Carbazole/cyanobenzene photocatalysts promote the direct isotopic carboxylate exchange of C(sp3) acids with labeled CO2. Substrates that are not compatible transition-metal-catalyzed degradation–reconstruction approaches or prone to thermally induced reversible decarboxylation undergo incorporation at room temperature in short reaction times. The radiolabeling drug molecules and precursors [11C...

introduction: [64cu]diacetyl-bis(n4-methylthiosemicarbazone) ([64cu]atsm) is a well-established hypoxia imaging tracer with reproducible production and significant specifity. in this work the high yield production and quality control as well as imaging studies in healthy rabbits is reported. methods: copper-64 produced via the 68zn(p,an)64cu nuclear reaction (30 mev protons at 180 µa) was used...

Zirconium-89 is an emerging radionuclide for positron emission tomography (PET) especially for biomolecules with slow pharmacokinetics as due to its longer half-life, in comparison to fluorine-18 and gallium-68, imaging at late time points is feasible. Desferrioxamine B (DFO), a linear bifunctional chelator (BFC) is mostly used for this radionuclide so far but shows limitations regarding stabil...

BACKGROUND Single photon emission computed tomography (SPECT) is an indispensable tool in the determination of the in vivo fate of polymeric micelles. However, for this purpose, the micelles need to be radiolabeled, and almost all radiolabeling procedures published to date involve the conjugation of a chelating agent to the constituting polymer, which could actually affect their biodistribution...