Results 71 to 80 of about 12,648 (203)

How Well Do We Know VPDB—Part 2: Interlaboratory Assessment of Existing δ13CVPDB Reference Materials

Rapid Communications in Mass Spectrometry, Volume 40, Issue 4, 28 February 2026.
ABSTRACT Rationale In January 2024, the IAEA experts meeting endorsed both δ13C scales that are currently used within the scientific community: the Vienna Peedee belemnite (VPDB) δ13C scale defined by NBS 19 with a value of +1.95‰ exactly, and the VPDB‐LSVEC scale defined by NBS 19 and the lithium carbonate LSVEC with a value of −46.60‰ exactly ...
Heiko Moossen, Pharahilda M. Steur, Federica Camin, Bor Krajnc, Anett Enke, Heike Geilmann, Dipayan Paul, Markus Lange, Isabell von Rein, Harro A. J. Meijer   +9 more
wiley   +1 more source

On the adsorption and reactivity of element 114, flerovium

Frontiers in Chemistry, 2022
Flerovium (Fl, element 114) is the heaviest element chemically studied so far. To date, its interaction with gold was investigated in two gas-solid chromatography experiments, which reported two different types of interaction, however, each based on the ...
A. Yakushev, A. Yakushev, L. Lens, L. Lens, Ch. E. Düllmann, Ch. E. Düllmann, Ch. E. Düllmann, J. Khuyagbaatar, J. Khuyagbaatar, E. Jäger, J. Krier, J. Runke, J. Runke, H. M. Albers, M. Asai, M. Block, M. Block, M. Block, J. Despotopulos, A. Di Nitto, A. Di Nitto, K. Eberhardt, U. Forsberg, P. Golubev, M. Götz, M. Götz, M. Götz, S. Götz, S. Götz, S. Götz, H. Haba, L. Harkness-Brennan, R.-D. Herzberg, F. P. Heßberger, F. P. Heßberger, D. Hinde, A. Hübner, D. Judson, B. Kindler, Y. Komori, J. Konki, J.V. Kratz, N. Kurz, M. Laatiaoui, M. Laatiaoui, M. Laatiaoui, S. Lahiri, B. Lommel, M. Maiti, A. K. Mistry, A. K. Mistry, Ch. Mokry, Ch. Mokry, K. J. Moody, Y. Nagame, J. P. Omtvedt, P. Papadakis, V. Pershina, D. Rudolph, L.G. Samiento, T.K. Sato, M. Schädel, P. Scharrer, P. Scharrer, P. Scharrer, B. Schausten, D. A. Shaughnessy, J. Steiner, P. Thörle-Pospiech, P. Thörle-Pospiech, A. Toyoshima, N. Trautmann, K. Tsukada, J. Uusitalo, K.-O. Voss, A. Ward, M. Wegrzecki, N. Wiehl, N. Wiehl, E. Williams, V. Yakusheva, V. Yakusheva   +81 more
doaj   +1 more source

Exploring CPP Enhanced Hypoxia Targeting: An Approach Using Radiolabeled 2‐nitroimidazole TAT Conjugate

Drug Development Research, Volume 87, Issue 1, February 2026.
ABSTRACT Mediated by their protein transduction domain, cell‐penetrating peptides (CPPs) have been widely explored for facilitating intracellular delivery of drugs and small molecules. In this study, a radiolabeled, 2‐nitroimidazole conjugated TAT (TAT ‐ transactivator of transcription) peptide was prepared and evaluated for targeting tumor hypoxia ...
Sweety Mittal, Akanksha Jain, Ashwini Babu, Chandan Kumar, Madhava B. Mallia   +4 more
wiley   +1 more source

Radiochemistry

Definitions, 2020
· 68Ga-labeled nanoparticles for dual-modality PET/MRI imaging of cancer · 68Ga-labeled radiopeptides for the visualization of primary cancer and metastastic spread using PET/CT · Development of radioimmunomagnetic nanoparticles for the simultaneous MRI ...
J. Takahashi
semanticscholar   +1 more source

Synthesis and Application of [18F]Togni Reagent I: An Electrophilic 18F‐Labeled Trifluoromethylating Reagent for Positron Emission Tomography Tracer Synthesis

European Journal of Organic Chemistry, Volume 29, Issue 4, January 26, 2026.
Togni reagent I, one of the most used electrophilic trifluoromethylating reagents, has been radiolabeled with fluorine‐18 starting from the widely available fluoro‐benziodoxole and the [18F]Ruppert–Prakash reagent. To demonstrate the broad potential for late‐stage functionalization, aliphatic carboxylic acids were successfully converted into their 18F ...
Lizeth Y. F. Haveman, Albert D. Windhorst, Danielle J. Vugts   +2 more
wiley   +1 more source

18F‐Radiopharmaceutical Diversification Enabled by Deaminative Cross‐Electrophile Couplings

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A general Ni‐mediated (C)sp2–(C)sp3 cross‐coupling expedites access to 18F‐radiopharmaceuticals, essential for positron emission tomography imaging and drug discovery. This late‐stage diversification approach was implemented across three user‐friendly automated protocols affording 18F‐radiotracers in sufficient quantities for imaging.
Isabella F. Ogilvy, Joseph Ford, Sebastiano Ortalli, Evelien Renders, Thomas R. Hayes, Shuanglong Liu, Inne Mortiers, Anastasia Nikolopoulou, Alexandre M. Sorlin, Andrés A. Trabanco, Matthew Tredwell, Peter J. J. A. Buijnsters, Rhys Salter, Véronique Gouverneur   +13 more
wiley   +1 more source

Fundamental Research on Radiochemistry of Geological Nuclear Waste Disposal.

Chimia (Basel), 2020
Currently, 5 · 1019 Bq of radioactive waste originating from the use of nuclear power for energy production, and medicine, industry and research, is maintained in Switzerland at intermediate storage facilities.
S. Churakov, W. Hummel, M. M. Fernandes
semanticscholar   +1 more source

Bioorthogonal Chemistry in Biomolecule Quantification: A Review of Reactions and Strategies

Chemistry – A European Journal, Volume 32, Issue 1, 2 January 2026.
This review summarizes the application of catalyst‐free bioorthogonal reactions: Staudinger ligation, strain promoted azide alkyne cycloaddition, inverse electron‐demand Diels–Alder, and 2‐cyanobenzothiazole cysteine condensation in the semi‐quantitative and quantitative analysis of biomolecules.
Mingze Yang, Shiqi Wang
wiley   +1 more source

High-Efficiency Production of Radiopharmaceuticals via Droplet Radiochemistry: A Review of Recent Progress

Molecular Imaging, 2020
New platforms are enabling radiochemistry to be carried out in tiny, microliter-scale volumes, and this capability has enormous benefits for the production of radiopharmaceuticals.
Jia Wang, R. M. van Dam
semanticscholar   +1 more source

Preclinical comparison of four [18F, natGa]rhPSMA-7 isomers: influence of the stereoconfiguration on pharmacokinetics

EJNMMI Research, 2020
Introduction Radiohybrid (rh) ligands, a novel class of prostate-specific membrane antigen (PSMA)-targeted radiopharmaceuticals, can be labeled either with [18F]fluorine via isotopic exchange or with radiometals (such as [68Ga]Gallium, [177Lu]Lutetium ...
Alexander Wurzer, Mara Parzinger, Matthias Konrad, Roswitha Beck, Thomas Günther, Veronika Felber, Stefanie Färber, Daniel Di Carlo, Hans-Jürgen Wester   +8 more
doaj   +1 more source