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Positron detection in silica monoliths for miniaturised quality control of PET radiotracers (2016)
Journal Article
Tarn, M. D., Maneuski, D., Alexander, R., Brown, N. J., O’Shea, V., Pimlott, S. L., Pamme, N., & Archibald, S. J. (2016). Positron detection in silica monoliths for miniaturised quality control of PET radiotracers. Chemical communications : Chem comm / the Royal Society of Chemistry, 52(45), 7221-7224. https://doi.org/10.1039/c6cc00660d

We demonstrate the use of the miniaturised Medipix positron sensor for detection of the clinical PET radiotracer, [⁶⁸Ga]gallium-citrate, on a silica-based monolith, towards microfluidic quality control. The system achieved a far superior signal-to-no... Read More about Positron detection in silica monoliths for miniaturised quality control of PET radiotracers.

Mono- and bis-alkylation of glyoxal-bridged tetraazamacrocycles using mechanochemistry (2016)
Journal Article
Abdulwahaab, B. H., Burke, B. P., Domarkas, J., Silversides, J. D., Prior, T. J., & Archibald, S. J. (2016). Mono- and bis-alkylation of glyoxal-bridged tetraazamacrocycles using mechanochemistry. Journal of Organic Chemistry, 81(3), 890-898. https://doi.org/10.1021/acs.joc.5b02464

Glyoxal-bridged bisaminal tetraazamacrocyclic derivatives of 1,4,7,10-tetraazacyclododecane (cyclen) and 1,4,8,11-tetraazacyclotetradecane (cyclam) can be N-functionalized to incorporate coordinating groups or for conjugation to biomolecules. Herein,... Read More about Mono- and bis-alkylation of glyoxal-bridged tetraazamacrocycles using mechanochemistry.

Development of PDT/PET theranostics: synthesis and biological evaluation of an ¹⁸F-radiolabeled water soluble porphyrin (2015)
Journal Article
Entract, G. M., Bryden, F., Domarkas, J., Savoie, H., Allott, L., Archibald, S. J., Cawthorne, C., & Boyle, R. W. (2015). Development of PDT/PET theranostics: synthesis and biological evaluation of an ¹⁸F-radiolabeled water soluble porphyrin. Molecular pharmaceutics, 12(12), 4414-4423. https://doi.org/10.1021/acs.molpharmaceut.5b00606

Synthesis of the first water-soluble porphyrin radiolabeled with fluorine-18 is described: a new molecular theranostic agent which integrates the therapeutic selectivity of photodynamic therapy (PDT) with the imaging efficacy of positron emission tom... Read More about Development of PDT/PET theranostics: synthesis and biological evaluation of an ¹⁸F-radiolabeled water soluble porphyrin.

Evaluation of configurationally restricted copper-64 labelled bis tetraazamacrocyclic as potential PET agents for CXCR4 expression in oncology imaging (2015)
Journal Article
Clemente, G. S., Burke, B. P., Nigam, S., Cawthorne, C., & Archibald, S. J. (2015). Evaluation of configurationally restricted copper-64 labelled bis tetraazamacrocyclic as potential PET agents for CXCR4 expression in oncology imaging. European journal of nuclear medicine and molecular imaging, 42(S1), S42. https://doi.org/10.1007/s00259-015-3198-z

Conference abstract

Crystal structure of dichlorido(4,11-dimethyl-1,4,8,11-tetraazabicyclo[6.6.2]hexadecane)iron(III) hexafluoridophosphate (2015)
Journal Article
Funwie, N. L., Cain, A. N., Fanning, B. Z., Hageman, S. A., Mullens, M., Roberts, T. K., Turner, D. J., Valdez, C. N., Vaughan, R. W., Ermias, H. G., Silversides, J. D., Archibald, S. J., Hubin, T. J., & Prior, T. J. (2015). Crystal structure of dichlorido(4,11-dimethyl-1,4,8,11-tetraazabicyclo[6.6.2]hexadecane)iron(III) hexafluoridophosphate. Acta Crystallographica Section E: Crystallographic Communications, 71(9), 1073-1076. https://doi.org/10.1107/S2056989015015340

The title compound, [FeCl₂(C₁₄H₃₀N₄)]PF₆, contains Fe³⁺ coordinated by the four nitro­gen atoms of an ethyl­ene cross-bridged cyclam macrocycle and two cis chloride ligands in a distorted octa­hedral environment. In contrast to other similar compound... Read More about Crystal structure of dichlorido(4,11-dimethyl-1,4,8,11-tetraazabicyclo[6.6.2]hexadecane)iron(III) hexafluoridophosphate.

Chelator free gallium-68 radiolabelling of silica coated iron oxide nanorods via surface interactions (2015)
Journal Article
Burke, B. P., Baghdadi, N., Kownacka, A. E., Nigam, S., Clemente, G. S., Al-Yassiry, M. M., Domarkas, J., Lorch, M., Pickles, M., Gibbs, P., Cawthorne, C., & Archibald, S. J. (2015). Chelator free gallium-68 radiolabelling of silica coated iron oxide nanorods via surface interactions. Nanoscale, 7(36), 14889-14896. https://doi.org/10.1039/c5nr02753e

The commercial availability of combined magnetic resonance imaging (MRI)/positron emission tomography (PET) scanners for clinical use has increased demand for easily prepared agents which offer signal or contrast in both modalities. Herein we describ... Read More about Chelator free gallium-68 radiolabelling of silica coated iron oxide nanorods via surface interactions.

Integrated microfluidic lab-on-a-chip systems for F-18 radiotracer synthesis, purification and quality control (2015)
Journal Article
Archibald, S., Pamme, N., Brown, N., & Tarn, M. (2015). Integrated microfluidic lab-on-a-chip systems for F-18 radiotracer synthesis, purification and quality control. Journal of nuclear medicine, 56(Supplement 3), Article 167

Objectives Dose-on-demand radiotracer production, whereby a single dose is generated using a compact synthesis unit with radioisotope from a mini-cyclotron or external supply is an interesting prospect for widening the availabilty of radiotracers. We... Read More about Integrated microfluidic lab-on-a-chip systems for F-18 radiotracer synthesis, purification and quality control.

Synthesis, structural studies, kinetic stability, and oxidation catalysis of the late first row transition metal complexes of 4,10-dimethyl-1,4,7,10-tetraazabicyclo[6.5.2]pentadecane (2015)
Journal Article
Matz, D. L., Jones, D. G., Roewe, K. D., Gorbet, M.-J., Zhang, Z., Chen, Z., Prior, T. J., Archibald, S. J., Yin, G., & Hubin, T. J. (2015). Synthesis, structural studies, kinetic stability, and oxidation catalysis of the late first row transition metal complexes of 4,10-dimethyl-1,4,7,10-tetraazabicyclo[6.5.2]pentadecane. Dalton Transactions : an international journal of inorganic chemistry, 44(27), 12210-12224. https://doi.org/10.1039/c5dt00742a

© The Royal Society of Chemistry 2015. Synthetic details for 4,11-dimethyl-1,4,8,11-tetraazabicyclo[6.5.2]pentadecane, the dimethyl ethylene cross-bridged homocyclen ligand are presented for the first time. Its novel Mn 2+ , Fe 2+ , Mn 3+ , and Fe 3+... Read More about Synthesis, structural studies, kinetic stability, and oxidation catalysis of the late first row transition metal complexes of 4,10-dimethyl-1,4,7,10-tetraazabicyclo[6.5.2]pentadecane.

IL-24 Inhibits lung cancer cell migration and invasion by disrupting the SDF-1/CXCR4 signaling axis (2015)
Journal Article
Panneerselvam, J., Jin, J., Shanker, M., Lauderdale, J., Bates, J., Wang, Q., Zhao, Y. D., Archibald, S. J., Hubin, T. J., & Ramesh, R. (2015). IL-24 Inhibits lung cancer cell migration and invasion by disrupting the SDF-1/CXCR4 signaling axis. PLoS ONE, 10(3), Article e0122439. https://doi.org/10.1371/journal.pone.0122439

© 2015 Panneerselvam et al. Background The stromal cell derived factor (SDF)-1/chemokine receptor (CXCR)-4 signaling pathway plays a key role in lung cancer metastasis and is molecular target for therapy. In the present study we investigated whether... Read More about IL-24 Inhibits lung cancer cell migration and invasion by disrupting the SDF-1/CXCR4 signaling axis.

New AMD3100 derivatives for CXCR4 chemokine receptor targeted molecular imaging studies: synthesis, anti-HIV-1 evaluation and binding affinities (2015)
Journal Article
Poty, S., Désogère, P., Goze, C., Boschetti, F., D‘huys, T., Schols, D., Cawthorne, C., Archibald, S. J., Maëcke, H. R., & Denat, F. (2015). New AMD3100 derivatives for CXCR4 chemokine receptor targeted molecular imaging studies: synthesis, anti-HIV-1 evaluation and binding affinities. Dalton Transactions : an international journal of inorganic chemistry, 44(11), 5004-5016. https://doi.org/10.1039/c4dt02972k

CXCR4 is a target of growing interest for the development of new therapeutic drugs and imaging agents as its role in multiple disease states has been demonstrated. AMD3100, a CXCR4 chemokine receptor antagonist that is in current clinical use as a ha... Read More about New AMD3100 derivatives for CXCR4 chemokine receptor targeted molecular imaging studies: synthesis, anti-HIV-1 evaluation and binding affinities.

Advances in processes for PET radiotracer synthesis: Separation of [18F]fluoride from enriched [18O]water (2014)
Journal Article
He, P., Haswell, S. J., Pamme, N., & Archibald, S. J. (2014). Advances in processes for PET radiotracer synthesis: Separation of [18F]fluoride from enriched [18O]water. Applied radiation and isotopes : including data, instrumentation, and methods for use in agriculture, industry, and medicine, 91, 64-70. https://doi.org/10.1016/j.apradiso.2014.04.021

Positron emission tomography (PET) is a powerful scientific and clinical tool for the study and visualization of human physiology that can provide important information about metabolism and diseases such as cancer. At present, [ 18 F]fluorodeoxygluco... Read More about Advances in processes for PET radiotracer synthesis: Separation of [18F]fluoride from enriched [18O]water.

How does iron interact with sporopollenin exine capsules? An X-ray absorption study including microfocus XANES and XRF imaging (2014)
Journal Article
Archibald, S. J., Atkin, S. L., Bras, W., Diego-Taboada, A., Mackenzie, G., Mosselmans, J. F. W., Nikitenko, S., Quinn, P. D., Thomas, M. F., & Young, N. A. (2014). How does iron interact with sporopollenin exine capsules? An X-ray absorption study including microfocus XANES and XRF imaging. Journal of Materials Chemistry B, 2(8), 945-959. https://doi.org/10.1039/c3tb21523g

Sporopollenin exine capsules (SECs) derived from plant spores and pollen grains have been proposed as adsorption, remediation and drug delivery agents. Despite many studies there is scant structural data available. This X-ray absorption investigation... Read More about How does iron interact with sporopollenin exine capsules? An X-ray absorption study including microfocus XANES and XRF imaging.

CXCR4 chemokine receptor antagonists: nickel(II) complexes of configurationally restricted macrocycles (2012)
Journal Article
Smith, R., Huskens, D., Daelemans, D., Mewis, R. E., Garcia, C. D., Cain, A. N., Freeman, T. N. C., Pannecouque, C., Clercq, E. D., Schols, D., Hubin, T. J., & Archibald, S. J. (2012). CXCR4 chemokine receptor antagonists: nickel(II) complexes of configurationally restricted macrocycles. Dalton Transactions : an international journal of inorganic chemistry, 41(37), 11369-11377. https://doi.org/10.1039/c2dt31137b

Tetraazamacrocyclic complexes of transition metals provide useful units for incorporating multiple coordination interactions into a single protein binding molecule. They can be designed with available sites for protein interactions via donor atom-con... Read More about CXCR4 chemokine receptor antagonists: nickel(II) complexes of configurationally restricted macrocycles.

Macrocyclic coordination chemistry (2011)
Journal Article
Archibald, S. J. (2011). Macrocyclic coordination chemistry. Annual Reports Section A :Inorganic Chemistry, 107, 274-296. https://doi.org/10.1039/c1ic90033a

This chapter reviews the literature published on macrocyclic coordination chemistry during 2010. The aim is to describe the key advances, focusing predominantly on complexes formed with transition metal and lanthanide ions. Porphyrin ligands and supr... Read More about Macrocyclic coordination chemistry.

Challenges in chelating positron emitting copper isotopes: tailored synthesis of unsymmetric chelators to form ultra stable complexes (2011)
Journal Article
Silversides, J. D., Smith, R., & Archibald, S. J. (2011). Challenges in chelating positron emitting copper isotopes: tailored synthesis of unsymmetric chelators to form ultra stable complexes. Dalton Transactions : an international journal of inorganic chemistry, 40(23), 6289-6297. https://doi.org/10.1039/c0dt01395a

The synthesis of chelators that form high stability complexes with copper(II) isotopes and do not suffer from transchelation in vivo has been a goal for many chemists. Such chelators will facilitate the exploitation of the Cu-64 isotope (t(1/2) = 12.... Read More about Challenges in chelating positron emitting copper isotopes: tailored synthesis of unsymmetric chelators to form ultra stable complexes.

Preparation, structural characterization, and thermal ammonolysis of two novel dimeric transition silylamide complexes (2011)
Journal Article
Cheng, F., Hope, C. N., Archibald, S. J., Bradley, J. S., Clark, S., Francesconi, M. G., Kelly, S. M., Young, N. A., & Lefebvre, F. (2011). Preparation, structural characterization, and thermal ammonolysis of two novel dimeric transition silylamide complexes. International Journal of Applied Ceramic Technology, 8(2), 467-481. https://doi.org/10.1111/j.1744-7402.2009.02452.x

The preparation and molecular structures of two novel dimeric transition metal silylamide complexes {Li0.5Zr[NHSi(NMe2)3]1.5[NSi(NMe2)3]0.5[μ -NSi(NMe2)3]}2 and {Li0.5Hf[NHSi(NMe2)3]1.5[NSi(NMe2)3]0.5[μ-NSi(NMe2)3]}2 with a tetrahedral coordination e... Read More about Preparation, structural characterization, and thermal ammonolysis of two novel dimeric transition silylamide complexes.

Synthesis, structure and reactivity of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole (2010)
Journal Article
Sparke, A. E., Fisher, C. M., Mewis, R. E., & Archibald, S. J. (2010). Synthesis, structure and reactivity of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole. Tetrahedron letters; the international organ for the rapid publication of preliminary communications in organic chemistry, 51(36), 4723-4726. https://doi.org/10.1016/j.tetlet.2010.07.010

The synthesis of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole, which undergoes a nucleophilic substitution with pyridine in the absence of additional base, is reported. The key steps are the reaction of 1,2-phenylenediamine to give exclusively the... Read More about Synthesis, structure and reactivity of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole.

A cellular screening assay using analysis of metal-modified fluorescence lifetime (2010)
Journal Article
Cade, N. I., Fruhwirth, G., Archibald, S. J., Ng, T., & Richards, D. (2010). A cellular screening assay using analysis of metal-modified fluorescence lifetime. Biophysical journal, 98(11), 2752-2757. https://doi.org/10.1016/j.bpj.2010.03.016

Current methods for screening cell receptor internalization often require complex image analysis with limited sensitivity. Here we describe a novel bioassay based on detection of changes in global fluorescence lifetime above a gold substrate, with su... Read More about A cellular screening assay using analysis of metal-modified fluorescence lifetime.

Hydrogen bonded dimers vs. one-dimensional chains in 2-thiooxoimidazolidin-4-one (thiohydantoin) drug derivatives (2010)
Journal Article
Jha, S., Silversides, J. D., Boyle, R. W., & Archibald, S. J. (2010). Hydrogen bonded dimers vs. one-dimensional chains in 2-thiooxoimidazolidin-4-one (thiohydantoin) drug derivatives. CrystEngComm RSC, 12(6), 1730-1739. https://doi.org/10.1039/b924683e

Hydantoins have been known as medicinally active compounds since the 1940s and thiohydantoin derivatives are currently undergoing clinical trials as potent androgen receptor antagonist drugs. Control of solid state properties including the formation... Read More about Hydrogen bonded dimers vs. one-dimensional chains in 2-thiooxoimidazolidin-4-one (thiohydantoin) drug derivatives.