0000000001299008
AUTHOR
Brech Aikman
showing 13 related works from this author
Comparative biological evaluation and G-quadruplex interaction studies of two new families of organometallic gold(I) complexes featuring N-heterocycl…
2020
Experimental organometallic gold(I) compounds hold promise for anticancer therapy. This study reports the synthesis of two novel families of gold(I) complexes, including N1-substituted bis-N-heterocyclic carbene (NHC) complexes of general formula [Au(N1-TBM) 2]BF 4 (N1-TBM = N1-substituted 9-methyltheobromin-8-ylidene) and mixed gold(I) NHC-alkynyl complexes, [Au(N1-TBM)alkynyl]. The compounds were fully characterised for their structure and stability in aqueous environment and in the presence of N-acetyl cysteine by nuclear magnetic resonance (NMR) spectroscopy. The structures of bis(1-ethyl-3,7,9-trimethylxanthin-8-ylidene)gold(I), (4-ethynylpyridine)(1,9-dimethyltheobromine-8-ylidene)gol…
Highly-fluorescent BODIPY-functionalised metallacages as drug delivery systems
2022
With the aim of designing new metallosupramolecular architectures for drug delivery, research has focused on porous 3-dimensional (3D)-metallacages able to encapsulate cytotoxic agents protecting them from metabolism while targeting them to cancer sites. Here, two self-assembled [Pd2L4]4+ cages (CG1 and CG2) featuring 3,5-bis(3-ethynylpyridine)phenyl ligands (L) exo-functionalised with dipyrromethene (BODIPY) groups have been synthesised and characterised by different methods, including NMR spectroscopy and mass spectrometry. 1H NMR spectroscopy studies shows that the cages are able to encapsulate the anticancer drug cisplatin in their hydrophobic cavity, as evidenced by electrostatic poten…
Mechanisms of irreversible aquaporin-10 inhibition by organogold compounds studied by combined biophysical methods and atomistic simulations
2021
Abstract The inhibition of glycerol permeation via human aquaporin-10 (hAQP10) by organometallic gold complexes has been studied by stopped-flow fluorescence spectroscopy, and its mechanism has been described using molecular modelling and atomistic simulations. The most effective hAQP10 inhibitors are cyclometalated Au(III) C^N compounds known to efficiently react with cysteine residues leading to the formation of irreversible C–S bonds. Functional assays also demonstrate the irreversibility of the binding to hAQP10 by the organometallic complexes. The obtained computational results by metadynamics show that the local arylation of Cys209 in hAQP10 by one of the gold inhibitors is mapped int…
Exploring the Reactivity and Biological Effects of Heteroleptic N-Heterocyclic Carbene Gold(I)- Alkynyl Complexes
2020
With the aim to explore the effects of different organometallic ligands on the reactivity and biological properties of a series of twelve heteroleptic AuI complexes, of general formula [Au(NHC)(alkynyl)] (NHC = benzimidazolylidene or 1,3-dihydroimidazolylidene) were synthesized and characterized by 1H and 13C NMR and elemental analysis, and in some cases also by X-ray diffraction. The compounds were all stable in H2O/DMSO as established by NMR spectroscopy, while they could react with model thiols (EtSH) in the presence of water to undergo ligand-substitution reactions. 1H NMR experiments showed that dissociation of the more labile alkynyl ligand was possible for all compounds, while in the…
CCDC 1955879: Experimental Crystal Structure Determination
2020
Related Article: Jens Oberkofler, Brech Aikman, Riccardo Bonsignore, Alexander Pöthig, James Platts, Angela Casini, Fritz E. Kühn|2020|Eur.J.Inorg.Chem.|2020|1040|doi:10.1002/ejic.201901043
CCDC 1913564: Experimental Crystal Structure Determination
2019
Related Article: Samuel M. Meier-Menches, Brech Aikman, Daniel Döllerer, Wim T. Klooster, Simon J. Coles, Nicolò Santi, Louis Luk, Angela Casini, Riccardo Bonsignore|2020|J.Inorg.Biochem.|202|110844|doi:10.1016/j.jinorgbio.2019.110844
CCDC 1916760: Experimental Crystal Structure Determination
2019
Related Article: Samuel M. Meier-Menches, Brech Aikman, Daniel Döllerer, Wim T. Klooster, Simon J. Coles, Nicolò Santi, Louis Luk, Angela Casini, Riccardo Bonsignore|2020|J.Inorg.Biochem.|202|110844|doi:10.1016/j.jinorgbio.2019.110844
CCDC 2143205: Experimental Crystal Structure Determination
2022
Related Article: Brech Aikman, Riccardo Bonsignore, Ben Woods, Daniel Doellerer, Riccardo Scotti, Claudia Schmidt, Alexandra A. Heidecker, Alexander Pöthig, Edward J. Sayers, Arwyn T. Jones, Angela Casini|2022|Dalton Trans.|51|7476|doi:10.1039/D2DT00337F
CCDC 1955877: Experimental Crystal Structure Determination
2020
Related Article: Jens Oberkofler, Brech Aikman, Riccardo Bonsignore, Alexander Pöthig, James Platts, Angela Casini, Fritz E. Kühn|2020|Eur.J.Inorg.Chem.|2020|1040|doi:10.1002/ejic.201901043
CCDC 1955875: Experimental Crystal Structure Determination
2020
Related Article: Jens Oberkofler, Brech Aikman, Riccardo Bonsignore, Alexander Pöthig, James Platts, Angela Casini, Fritz E. Kühn|2020|Eur.J.Inorg.Chem.|2020|1040|doi:10.1002/ejic.201901043
CCDC 1955876: Experimental Crystal Structure Determination
2020
Related Article: Jens Oberkofler, Brech Aikman, Riccardo Bonsignore, Alexander Pöthig, James Platts, Angela Casini, Fritz E. Kühn|2020|Eur.J.Inorg.Chem.|2020|1040|doi:10.1002/ejic.201901043
CCDC 1940532: Experimental Crystal Structure Determination
2019
Related Article: Samuel M. Meier-Menches, Brech Aikman, Daniel Döllerer, Wim T. Klooster, Simon J. Coles, Nicolò Santi, Louis Luk, Angela Casini, Riccardo Bonsignore|2020|J.Inorg.Biochem.|202|110844|doi:10.1016/j.jinorgbio.2019.110844
CCDC 1955878: Experimental Crystal Structure Determination
2020
Related Article: Jens Oberkofler, Brech Aikman, Riccardo Bonsignore, Alexander Pöthig, James Platts, Angela Casini, Fritz E. Kühn|2020|Eur.J.Inorg.Chem.|2020|1040|doi:10.1002/ejic.201901043