In this study, production, quality control and biodistribution studies of 166Ho-zoledronate have been presented as a possible bone marrow ablative agent. Ho-166 chloride was produced by thermal neutron irradiation of natural 165Ho(NO3)3 samples. 166Ho-zoledronate complex was prepared by adding the desired amount of zoledronate solution (0.2 mL, 150 mg/ml in 1 M NaOH) to appropriate amount of th...

Introduction: Bleomycins are DNA-binding biomolecules, which can be used as targeted therapy carriers when labeled with particle-emitters such as Yb-175. In this work the development of Yb-175 bleomycin (175Yb-BLM) has been reported. Methods: Yb-175 chloride was obtained by thermal neutron irradiation (3 × 1013 n.cm-2.s-1) of natural Yb2O<...

   Developing new bone pain palliation agents is a mandate in handling end-stage cancer patients around the world. Possibly, Lu-177 ethylenediaminetetramethylene phosphonic acid (177Lu-EDTMP) is a therapeutic agent which can be widely used in bone palliation therapy. In this study, 177Lu-EDTMP complex was prepared successfully using synthesized EDTMP ligand and 177LuCl3. Lu-177 chloride was obt...

A novel reaction for chelate-free, heat-induced metal ion binding and radiolabeling of ultra-small paramagnetic iron oxide nanoparticles (USPIOs) has been established. Radiochemical and non-radioactive labeling studies demonstrated that the reaction has a wide chemical scope and is applicable to p-, d- and f-block metal ions with varying ionic sizes and formal oxidation states from 2+ to 4+. Ra...

[(18)F]Flurobutyl ethacrynic amide ([(18)F]FBuEA) was prepared from the precursor tosylate N-Boc-N-[4-(toluenesulfonyloxy)butyl]ethacrynic amide with a radiochemical yield of 3%, a specific activity of 48 GBq/μmol and radiochemical purity of 98%. Chemical conjugation of [(18)F]FBuEA with glutathione (GSH) via a self-coupling reaction and enzymatic conjugation under catalysis of glutathiontransf...

The Karlsruhe Tritium Neutrino (KATRIN) experiment aims to determine the effective mass of electron antineutrino by investigating tritium ?-spectrum close energetic endpoint. To achieve this, there are stringent and challenging requirements on stability gaseous source. loop system has task provide <0.1 % stabilized flow rate gas into KATRIN source with a throughput 40 g/day purity>95 %. started...

Synthesis of novel 225Ac-Sn particles was described for the first time. Detailed experimental and stability studies were successfully exhibited. Treatment excess amount SnCl2 with 0.2 mCi 225Ac furnished highly stable tin colloid 90% radiochemical yield (RCY) at optimized reaction condition. R-TLC analyses indicated 95% purity (RCP). Stability showed that colloidal structure also retained free ...

UNLABELLED The objective of our study was to determine the concentration of ethanol, a known radiolytic stabilizer, needed to maintain stability for 12 h at an (18)F-FDG concentration of 19.7-22.6 GBq/mL (533-610 mCi/mL) at the end of synthesis (EOS). METHODS (18)F(-) was formed by the (18)O(p, n)(18)F reaction using 16.5-MeV protons on a cyclotron. (18)F-FDG was synthesized using a synthesis...

introduction: auger electron based radioimmunotherapy (rit) using 111in-dota-trastuzumab (111in-dota-antiher2) feasibility was studied in vitro on a her2/neu positive cell line, skbr3. methods:111in-dota-antiher2 was prepared according to the optimized conditions followed by quality control tests including radiochemical purity; immunoreactivity). skbr3 as a her2/neu positive cell line was used ...

introduction: rheumatoid arthritis (ra) is the most common autoimmune disease, leading to the destruction of the joints and causing pain, disability, and immobility in the patients. radiosynovectomy (rsv) has been applied as an effective treatment for the patients with resistant synovitis after failure of long-term pharmacotherapy and intra-articular steroid injection for more than 50 years. se...