Introduction: Somatostatin receptors expressed on a wide range of human tumors, are potential targets for the peptide receptor radionuclide therapy (PRRT). In this study, 177Lu-[DOTA-DPhe1, Tyr3]octreotide (177Lu-DOTATOC) as an agent for PRRT was prepared and its biodistribution was studied in rats. Methods: The best condition for the preparation of the 177Lu-DOTATOC radiolabeled complex was de...

  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 ...

A method that uses induced pulsed eddy currents for characterization of thick magnetron sputtered Nb coatings on steel is presented in this paper. The objectives of this work are to develop a system for rapid quantitative nondestructive inspection of coatings as well as to determine the correlation between coating properties, such as density and purity, and eddy current measured resistivity of ...

The assessment of nucleic acid purity by the A260/A280 ratio has been used for a number of years. This measurement, however, does not provide all the information that investigator needs to assess nucleic acid preparations. The detection of impurities common to nucleic acid preparations that are not detected with absorbance measurements at 260 nm and 280 nm can in most instances be accomplished ...

Introduction: Due to the anti-proliferative properties of platinum group-thiosemicarbazone complexes, the production of 191Os-labeled 2-acetyl pyridine 4-N-methylthiosemicarbazone (191Os-APMTS) was investigated. Methods: [191Osmium (T½= 15.4d) was produced via the 190Os(n,γ)191Os nuclear reaction using enriched target irradiated...

Background: Copper-64 (T1/2=12.7 h) is an important radionuclide used both in PET imaging and therapy. [64Cu]-pyruvaldehyde-bis (N4-methylthiosemicarbazone) ([64Cu]-PTSM) is one of the most famous copper radiopharmaceuticals with unique specifications (suitable half life, stability, etc.). The wide range of 64Cu applications arouse great interest for its production. Materials and Methods: Cu-64...

Background Overexpression of prostatic membrane antigen (PSMA) is associated with the progression and prognosis of prostate cancer. There are numerous studies using this peptide with the 68Ga radionuclide. Previous methods to synthetize 18F-labeled PSMA ligands with complexes [18F]AlF2+ have been achieved. However, these reported syntheses were performed manually, using small volumes. Therefore...

background: copper-64 (t1/2=12.7 h) is an important radionuclide used both in pet imaging and therapy. [64cu]-pyruvaldehyde-bis (n4-methylthiosemicarbazone) ([64cu]-ptsm) is one of the most famous copper radiopharmaceuticals with unique specifications (suitable half life, stability, etc.). the wide range of 64cu applications arouse great interest for its production. materials and methods: cu-64...

Background: Food consumption is one of the most important routes for radionuclide intake public; therefore, there need to have a comprehensive understanding amount radioactivity in food products. Consumption radionuclide-contaminated could increase potential health risks associated with exposure radiation such as cancers. The present study aims determine levels some products (milk, rice, sugar,...

introduction foodstuffs are known to contain natural and artificial radionuclides. determination of radionuclide concentration is of great significance for the protection of human health. the main objective of the present study was the quantification of radionuclides in tea samples, cultivated in guilan province in north of iran. materials and methods the activity concentrations of 226ra, 232th...