نتایج جستجو برای: radiochemical purity

تعداد نتایج: 18590  

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2001
G W Visser R P Klok J W Gebbinck T ter Linden G A van Dongen C F Molthoff

UNLABELLED A novel, facile procedure for efficient coupling of high doses of (131)I to monoclonal antibodies (MAbs) was developed with minimal chemical and radiation damage. METHODS To diminish the radiation and chemical burden during labeling, iodination was performed in a large reaction volume and by temporarily coating the MAb with a minimal amount of IODO-GEN. The MAb was coated by inject...

Objective(s): Recently, bone-avid radiopharmaceuticals have been shown to have potential benefits for the treatment of widespread bone metastases. Although 177Lutriethylene tetramine hexa methylene phosphonic acid (abbreviated as 177Lu- TTHMP), as an agent for bone pain palliation, has been evaluated in previous studies, there are large discrepancies between the obtained results. In this study,...

Journal: :Atom Indonesia 2023

Iodine-125 (125I) is one of the radioisotopes widely used in radiopharmaceuticals for diagnosis and therapy various cancers. Recent reports indicate that there has been shortages world supply this radioiodine isotope. One absolute requirements good must meet radiochemical purity, which generally to be above 95 %, with an efficiency over 90 %. The previous investigation shows purity low does not...

Journal: :iranian journal of nuclear medicine 0
sara vosoughi nuclear science and technology research institute (nstri), tehran, iran simindokht shirvani-arani nuclear science and technology research institute (nstri), tehran, iran ali bahrami-samani nuclear science and technology research institute (nstri), tehran, iran nafiseh salek nuclear science and technology research institute (nstri), tehran, iran amir reza jalilian nuclear science and technology research institute (nstri), tehran, iran

introduction:holmium-166 radionuclide is one of the most effective radionuclides used for targeted therapy with theranostic properties. one method to produce this radioisotope is via the decay of its parent (indirect method). in this study applicability of extraction chromatography (exc) for separation of no carrier added 166ho from neutron-irradiated natural dysprosium target followed by quali...

Journal: :Bioorganic & medicinal chemistry 2006
Julien Le Gal Sandra Michaud Marie Gressier Yvon Coulais Eric Benoist

A novel bifunctional chelating agent bearing an aromatic ring has been synthesised and characterised. This ligand formed well-defined oxorhenium complexes. The analogous 99mTcO-complex was obtained in an excellent yield with high radiochemical purity (>95%). The biodistribution of the 99mTc-complex after intravenous injection studied in normal rats showed that the activity was excreted mainly v...

2008
Mostafa Gandomkar Reza Najafi Mohammad Mazidi Mostafa Goudarzi Seyed Hassan Mirfallah

Introduction: Ubiquicidin 29-41 (UBI) is a fragment of the cationic antimicrobial peptide that is present in various species including humans. The purpose of this study was to investigate radiochemical and biological characteristics of [6-hydrazinopyridine3-carboxylic acid (HYNIC)]-UBI 29-41 designed for the labeling with Tc using tricine as coligand. Methods: Synthesis was preformed on a solid...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2014
Hiroki Hashimoto Kazunori Kawamura Nobuyuki Igarashi Makoto Takei Tomoya Fujishiro Yoshiharu Aihara Satoshi Shiomi Masatoshi Muto Takehito Ito Kenji Furutsuka Tomoteru Yamasaki Joji Yui Lin Xie Maiko Ono Akiko Hatori Kazuyoshi Nemoto Tetsuya Suhara Makoto Higuchi Ming-Rong Zhang

UNLABELLED 2-((1E,3E)-4-(6-((11)C-methylamino)pyridin-3-yl)buta-1,3-dienyl)benzo[d]thiazol-6-ol ((11)C-PBB3) is a clinically useful PET probe that we developed for in vivo imaging of tau pathology in the human brain. To ensure the availability of this probe among multiple PET facilities, in the present study we established protocols for the radiosynthesis and quality control of (11)C-PBB3 and f...

Fereydoun Abbasi-Davani, Hassan Yousefnia, Masoumeh-Sadat Mousavi-Daramoroudi Samaneh Zolghadri,

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 ...

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