Université de Fribourg

Synthesis of different glutathione–sulfur mustard adducts of verified and potential biomarkers

Bielmann, Andreas ; Sambiagio, Nicolas ; Wehr, Nathalie ; Gerber-Lemaire, Sandrine ; Bochet, Christian G. ; Curty, Christophe

In: RSC Advances, 2018, vol. 8, no. 42, p. 23881–23890

Sulfur Mustard (SM) is a blistering agent used as a chemical weapon. Glutathione (GSH) is involved in the β-lyase degradation pathway of SM and recently, bioadducts between SM and GSH were observed in vitro. While these bioadducts have never been isolated from in vivo tests or real poisoning with SM, they could be of interest as potential future biomarkers for the retrospective validation of...

Université de Fribourg

Solid‐phase synthesis of the aged‐nonapeptide‐nerve‐agent adduct of butyrylcholinesterase as reference materials for analytical verification

Bielmann, Andreas ; Curty, Christophe ; Bochet, Christian G.

In: Helvetica Chimica Acta, 2017, vol. 100, no. 11, p. -

Two pathways were developed and investigated for the synthesis of the ‘aged’- nonapeptide nerve-agent bioadduct of human butyrylcholinesterase (BuChE). Considering the fast ageing of nerve-agent adducts of BuChE in patients and biomedical samples this target molecule is of paramount relevance for quantitative analysis with respect to the Chemical Weapons Convention. Two approaches using a ...

Université de Fribourg

Supramolecular agent–simulant correlations for the luminescence based detection of V-series chemical warfare agents with trivalent lanthanide complexes

Dennison, Genevieve H. ; Bochet, Christian G. ; Curty, Christophe ; Ducry, Julien ; Nielsen, David J. ; Sambrook, Mark R. ; Zaugg, Andreas ; Johnston, Martin R.

In: European Journal of Inorganic Chemistry, 2016, p. -

Solution spectroscopic investigations into the interactions of eight potential bidentate V-series organophosphorus chemical warfare agent (OP CWA) simulants with [Eu(phen)₂(NO₃)₃]·2H₂O demonstrated that the chemical and structural composition of the secondary binding site within the simulant was of paramount importance. Only simulants containing both phosphoryl/phosphonyl and...