Results 11 to 20 of about 6,285 (179)

Optimization of Automated Radiosynthesis of Gallium-68-Labeled PSMA11 with Two [68Ge]Ge/[68Ga]Ga Generators: Fractional Elution or Prepurification?

open access: yesPharmaceuticals, 2023
Prostate cancer is one of the most common forms of cancer in men. An imaging technique for its diagnosis is [68Ga]-prostate-specific membrane antigen ([68Ga]Ga-PSMA-11) positron emission tomography (PET).
Flore Durieux   +6 more
doaj   +2 more sources

Pitfalls and solutions of the fully-automated radiosynthesis of [11C]metoclopramide

open access: yesEJNMMI Radiopharmacy and Chemistry, 2019
Background [11C]Metoclopramide is a new radiotracer for investigating the activity of P-glycoprotein at the blood-brain barrier. A highly stable and reproducible radiosynthesis is a prerequisite for clinical studies applying [11C]metoclopramide or other ...
Verena Pichler   +6 more
doaj   +2 more sources

Copper-Mediated Radiofluorination of the Excitatory Amino Acid Transporter 2 (EAAT2)-Targeted PET Tracer [<sup>18</sup>F]RP-115: Alternate Synthetic Method. [PDF]

open access: yesJ Labelled Comp Radiopharm
An efficient two‐step radiosynthesis of [18F]RP‐115 was developed using copper‐mediated radiofluorination (CMRF) followed by deprotection. In a total 70‐min synthesis time, this approach provided [18F]RP‐115 in high radiochemical yield (52.8% ± 2.1%, decay corrected from stating [18F]fluoride ion) with high molar activity (355 ± 61 GBq/μmol) and ...
Lee SH   +9 more
europepmc   +2 more sources

Chemoenzymatic Radiosynthesis of a Gluconate Transporter-Targeted In Vivo Bacterial Sensor From Clinical [<sup>18</sup>F]FDG. [PDF]

open access: yesAngew Chem Int Ed Engl
An efficient radiosynthesis of fluorine‐18 labeled gluconic acid ([18F]FGA) was developed using two readily available materials, 2‐deoxy‐2‐[18F]fluoro‐D‐glucose ([18F]FDG) and glucose oxidase. [18F]FGA is highly specific for bacterial gluconate metabolism mediated by gluconate permease (GntP) and gluconate kinase (GntK), with rapid clearance, low off ...
Lee SH   +7 more
europepmc   +2 more sources

Development of Radioiodinated Tetrahydropyrazolopyridine Inhibitors Targeting mIDH. [PDF]

open access: yesJ Labelled Comp Radiopharm
Iodinated tetrahydropyrazolopyridine ligands show enhanced potency and selectivity for mutant IDH1 compared with their fluorinated counterparts and can be efficiently radiolabeled with I‐125, supporting the basis for further evaluation as mIDH1‐targeting radiotheranostic candidates.
Kaur S   +7 more
europepmc   +2 more sources

Fully Automated, High-Dose Radiosynthesis of [18F]PARPi [PDF]

open access: yes, 2023
peer reviewed[18F]PARPi is currently undergoing clinical trials as a PET tracer for many applications. However, only manual radiosynthesis was reported; this has several drawbacks, including an increased risk of contamination from the operator, and the ...
Herrmann, Ken   +19 more
core   +1 more source

Synthesis of [18F]FMISO, a hypoxia-specific imaging probe for PET, an overview from a radiochemist’s perspective

open access: yesEJNMMI Radiopharmacy and Chemistry, 2023
Background [18F]fluoromisonidazole ([18F]FMISO, 1H-1-(3-[18F]fluoro-2-hydroxypropyl)-2-nitroimidazole) is a commonly used radiotracer for imaging hypoxic conditions in cells.
Torsten Kniess   +5 more
doaj   +1 more source

Copper-mediated radiosynthesis of 18F- and 123I-radiolabelled PARP inhibitors [PDF]

open access: yes, 2022
This thesis aims to develop copper-mediated radiosynthesis to incorporate fluorine-18 and iodine-123 into FDA-approved poly(ADP-ribose) polymerase (PARP) inhibitors for cancer diagnosis and treatment, consisting the development of 18F-radiolabelled ...

core   +1 more source

Practical Radiosynthesis and Preclinical Neuroimaging of [11C]isradipine, a Calcium Channel Antagonist

open access: yesMolecules, 2015
In the interest of developing in vivo positron emission tomography (PET) probes for neuroimaging of calcium channels, we have prepared a carbon-11 isotopologue of a dihydropyridine Ca2+-channel antagonist, isradipine. Desmethyl isradipine (4-(benzo[c][1,
Benjamin H. Rotstein   +8 more
doaj   +1 more source

Radiosynthesis and in Vivo Evaluation of Two PET Radioligands for Imaging α-Synuclein

open access: yesApplied Sciences, 2014
Two α-synuclein ligands, 3-methoxy-7-nitro-10H-phenothiazine (2a, Ki = 32.1 ± 1.3 nM) and 3-(2-fluoroethoxy)-7-nitro-10H-phenothiazine (2b, Ki = 49.0 ± 4.9 nM), were radiolabeled as potential PET imaging agents by respectively introducing 11C and 18F ...
Xiang Zhang   +8 more
doaj   +1 more source

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