Outputs (42)

Bn2DT3A, a Chelator for 68Ga Positron Emission Tomography: Hydroxide Coordination Increases Biological Stability of [68Ga][Ga(Bn2DT3A)(OH)]− (2022)
Journal Article
Price, T. W., Renard, I., Prior, T. J., Kubíček, V., Benoit, D. M., Archibald, S. J., …Stasiuk, G. J. (2022). Bn2DT3A, a Chelator for 68Ga Positron Emission Tomography: Hydroxide Coordination Increases Biological Stability of [68Ga][Ga(Bn2DT3A)(OH)]−. Inorganic chemistry, 61(43), 17059–17067. https://doi.org/10.1021/acs.inorgchem.2c01992

The chelator Bn2DT3A was used to produce a novel 68Ga complex for positron emission tomography (PET). Unusually, this system is stabilized by a coordinated hydroxide in aqueous solutions above pH 5, which confers sufficient stability for it to be use... Read More about Bn2DT3A, a Chelator for 68Ga Positron Emission Tomography: Hydroxide Coordination Increases Biological Stability of [68Ga][Ga(Bn2DT3A)(OH)]−.

Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release (2022)
Journal Article
Diego-Taboada, A., Sathyapalan, T., Courts, F., Lorch, M., Almutairi, F., Burke, B. P., …Mackenzie, G. (2022). Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release. Journal of controlled release : official journal of the Controlled Release Society, 350, 244-255. https://doi.org/10.1016/j.jconrel.2022.08.017

Sporopollenin exine capsules (SpECs) are microcapsules derived from the outer shells (exines) of plant spore and pollen grains. This work reports the first clinical study on healthy volunteers to show enhanced bioavailability of vitamin D encapsulate... Read More about Spore exines increase vitamin D clinical bioavailability by mucoadhesion and bile triggered release.

Multivalency in CXCR4 chemokine receptor targeted iron oxide nanoparticles (2021)
Journal Article
Baghdadi, N. E., Burke, B. P., Alresheedi, T., Nigam, S., Saeed, A., Almutairi, F., Domarkas, J., Khan, A., & Archibald, S. J. (2021). Multivalency in CXCR4 chemokine receptor targeted iron oxide nanoparticles. Dalton Transactions : an international journal of inorganic chemistry, 50(5), 1599-1603. https://doi.org/10.1039/d0dt02626c

The CXCR4 chemokine receptor is an important biomolecular target in cancer diagnostics and therapeutics. In a new multivalent approach, iron oxide nanoparticles were conjugated with multiple binding units of a low affinity azamacrocylic CXCR4 antagon... Read More about Multivalency in CXCR4 chemokine receptor targeted iron oxide nanoparticles.

Towards dual SPECT/optical bioimaging with a mitochondrial targeting, 99mTc(i) radiolabelled 1,8-naphthalimide conjugate (2020)
Journal Article
Day, A. H., Domarkas, J., Nigam, S., Renard, I., Cawthorne, C., Burke, B. P., Bahra, G. S., Oyston, P. C. F., Fallis, I. A., Archibald, S. J., & Pope, S. J. A. (in press). Towards dual SPECT/optical bioimaging with a mitochondrial targeting, 99mTc(i) radiolabelled 1,8-naphthalimide conjugate. Dalton Transactions : an international journal of inorganic chemistry, 49(2), 511-523. https://doi.org/10.1039/c9dt04024b

A series of six different 1,8-naphthalimide conjugated dipicolylamine ligands (L1-6) have been synthesised and characterised. The ligands possess a range of different linker units between the napthalimide fluorophore and dipcolylamine chelator which... Read More about Towards dual SPECT/optical bioimaging with a mitochondrial targeting, 99mTc(i) radiolabelled 1,8-naphthalimide conjugate.

Synthesis of a porphyrin with histidine-like chelate: an efficient path towards molecular PDT/SPECT theranostics (2020)
Journal Article
Yap, S. Y., Savoie, H., Renard, I., Burke, B. P., Sample, H. C., Michue-Seijas, S., Archibald, S. J., Boyle, R. W., & Stasiuk, G. J. (2020). Synthesis of a porphyrin with histidine-like chelate: an efficient path towards molecular PDT/SPECT theranostics. Chemical communications : Chem comm / the Royal Society of Chemistry, 56(75), 11090-11093. https://doi.org/10.1039/d0cc03958f

© The Royal Society of Chemistry 2020. The goal of “personalised” medicine has seen a growing interest in the development of theranostic agents. Bifunctional, and targeted-trifunctional, theranostic water-soluble porphyrins with a histidine-like chel... Read More about Synthesis of a porphyrin with histidine-like chelate: an efficient path towards molecular PDT/SPECT theranostics.

On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers (2020)
Journal Article
Patinglag, L., Esfahani, M. M. N., Ragunathan, K., He, P., Brown, N. J., Archibald, S. J., Pamme, N., & Tarn, M. D. (2020). On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers. Analyst, 145(14), 4920-4930. https://doi.org/10.1039/c9an01881f

The miniaturisation of positron emission tomography (PET) radiotracer production is facilitating a move towards a dose-on-demand strategy that would enable a stratified approach to patient diagnostics, but while the on-chip synthesis steps have been... Read More about On-chip electrochemical detection of glucose towards the miniaturised quality control of carbohydrate-based radiotracers.

An ethylene cross-bridged pentaazamacrocycle and its Cu2+ complex: constrained ligand topology and excellent kinetic stability (2020)
Journal Article
Shircliff, A. D., Burke, B. P., Davilla, D. J., Burgess, G. E., Okorocha, F. A., Shrestha, A., Allbritton, E. M. A., Nguyen, P. T., Lamar, R. L., Jones, D. G., Gorbet, M. J., Allen, M. B., Eze, J. I., Fernandez, A. T., Ramirez, D., Archibald, S. J., Prior, T. J., Krause, J. A., Oliver, A. G., & Hubin, T. J. (2020). An ethylene cross-bridged pentaazamacrocycle and its Cu2+ complex: constrained ligand topology and excellent kinetic stability. Chemical communications : Chem comm / the Royal Society of Chemistry, 56(54), 7519-7522. https://doi.org/10.1039/d0cc00919a

Rigid and topologically constrained ethylene cross-bridged tetraazamacrocycles have been increasingly utilised for thirty years as they form remarkably stable transition metal complexes for catalysis, biomedical imaging, and inorganic drug molecule a... Read More about An ethylene cross-bridged pentaazamacrocycle and its Cu2+ complex: constrained ligand topology and excellent kinetic stability.

Water-Soluble Rhenium Phosphine Complexes Incorporating the Ph2C(X) Motif (X = O–, NH–): Structural and Cytotoxicity Studies (2020)
Journal Article
Alshamrani, A. F., Prior, T. J., Burke, B. P., Roberts, D. P., Archibald, S. J., Higham, L. J., Stasiuk, G., & Redshaw, C. (2020). Water-Soluble Rhenium Phosphine Complexes Incorporating the Ph2C(X) Motif (X = O–, NH–): Structural and Cytotoxicity Studies. Inorganic chemistry, 59(4), 2367-2378. https://doi.org/10.1021/acs.inorgchem.9b03239

Reaction of [ReOCl3(PPh3)2] or [ReO2I(PPh3)2] with 2,2′-diphenylglycine (dpgH2) in refluxing ethanol afforded the air-stable complex [ReO(dpgH)(dpg)(PPh3)] (1). Treatment of [ReO(OEt)I2(PPh3)2] with 1,2,3-triaza-7-phosphaadamantane (PTA) afforded the... Read More about Water-Soluble Rhenium Phosphine Complexes Incorporating the Ph2C(X) Motif (X = O–, NH–): Structural and Cytotoxicity Studies.

Synthesis, structure, and cytotoxicity studies of oxidovanadium(IV and V) complexes bearing chelating phenolates (2019)
Journal Article
Miller-Shakesby, D. M., Nigam, S., Brookfield, A., McInnes, E. J., Prior, T. J., Archibald, S. J., & Redshaw, C. (2019). Synthesis, structure, and cytotoxicity studies of oxidovanadium(IV and V) complexes bearing chelating phenolates. Polyhedron, 171, 1-9. https://doi.org/10.1016/j.poly.2019.06.051

The interaction of [VO(acac)2] with 2,6-bis(hydroxymethyl)-4-methylphenol (L1H3) or 6,6/-methylenebis(4-tert-butyl-2-(hydroxymethyl)phenol) (L2H4) in refluxing toluene afforded, following work-up in ethanol, the complexes [VOL1]2 (1) and {[VO(acac)(H... Read More about Synthesis, structure, and cytotoxicity studies of oxidovanadium(IV and V) complexes bearing chelating phenolates.

64Cu PET Imaging of the CXCR4 Chemokine Receptor Using a Cross-Bridged Cyclam Bis-Tetraazamacrocyclic Antagonist (2019)
Journal Article
Burke, B. P., Miranda, C., Lee, R., Renard, I., Nigam, S., Clemente, G., D'Huys, T., Ruest, T., Domarkas, J., Thompson, J., Hubin, T., Schols, D., Cawthorne, C., & Archibald, S. J. (2020). 64Cu PET Imaging of the CXCR4 Chemokine Receptor Using a Cross-Bridged Cyclam Bis-Tetraazamacrocyclic Antagonist. Journal of nuclear medicine, 61(1), 123-128. https://doi.org/10.2967/jnumed.118.218008

© 2020 by the Society of Nuclear Medicine and Molecular Imaging. Expression of the chemokine receptor chemokine C-X-C motif receptor 4 (CXCR4) plays an important role in cancer metastasis, in autoimmune diseases, and during stem cell-based repair pro... Read More about 64Cu PET Imaging of the CXCR4 Chemokine Receptor Using a Cross-Bridged Cyclam Bis-Tetraazamacrocyclic Antagonist.

Tetraazamacrocyclic derivatives and their metal complexes as antileishmanial leads (2019)
Journal Article
Hubin, T. J., Walker, A. N., Davilla, D. J., Carder Freeman, T. R. N., Epley, B. M., Hasley, T. R., Amoyaw, P. N., Jain, S., Archibald, S. J., Prior, T. J., Krause, J. A., Oliver, A. G., Tekwani, B. L., & Khan, M. O. F. (2019). Tetraazamacrocyclic derivatives and their metal complexes as antileishmanial leads. Polyhedron, 163, 42-53. https://doi.org/10.1016/j.poly.2019.02.027

© 2019 A total of 44 bis-aryl-monocyclic polyamines, monoaryl-monocyclic polyamines and their transition metal complexes were prepared, chemically characterized, and screened in vitro against the Leishmania donovani promastigotes, axenic amastigotes... Read More about Tetraazamacrocyclic derivatives and their metal complexes as antileishmanial leads.

Acetate as a model for aspartate-based CXCR4 chemokine receptor binding of cobalt and nickel complexes of cross-bridged tetraazamacrocycles (2019)
Journal Article
Cain, A. N., Carder Freeman, T. N., Roewe, K. D., Cockriel, D. L., Hasley, T. R., Maples, R. D., Allbritton, E. M. A., D'Huys, T., van Loy, T., Burke, B. P., Prior, T. J., Schols, D., Archibald, S. J., & Hubin, T. J. (2019). Acetate as a model for aspartate-based CXCR4 chemokine receptor binding of cobalt and nickel complexes of cross-bridged tetraazamacrocycles. Dalton Transactions : an international journal of inorganic chemistry, 48(8), 2785-2801. https://doi.org/10.1039/c8dt04728f

A number of disease states including WHIM syndrome, HIV infection and cancer have been linked to the chemokine receptor CXCR4. High-affinity CXCR4 antagonist transition metal complexes of configurationally restricted bis-tetraazamacrocyclic ligands h... Read More about Acetate as a model for aspartate-based CXCR4 chemokine receptor binding of cobalt and nickel complexes of cross-bridged tetraazamacrocycles.

Visualizing kinetically robust CoIII4L6 assemblies in Vivo: SPECT imaging of the encapsulated [99mTc]TcO4- Anion (2018)
Journal Article
Burke, B. P., Grantham, W., Burke, M. J., Nichol, G. S., Roberts, D., Renard, I., Hargreaves, R., Cawthorne, C., Archibald, S. J., & Lusby, P. J. (2018). Visualizing kinetically robust CoIII4L6 assemblies in Vivo: SPECT imaging of the encapsulated [99mTc]TcO4- Anion. Journal of the American Chemical Society, 140(49), 16877-16881. https://doi.org/10.1021/jacs.8b09582

© 2018 American Chemical Society. Noncovalent encapsulation is an attractive approach for modifying the efficacy and physiochemical properties of both therapeutic and diagnostic species. Abiotic self-assembled constructs have shown promise, yet many... Read More about Visualizing kinetically robust CoIII4L6 assemblies in Vivo: SPECT imaging of the encapsulated [99mTc]TcO4- Anion.

Bisphosphonate Functionalized Gadolinium Oxide Nanoparticles Allow Long-Term MRI/CT Multimodal Imaging of Calcium Phosphate Bone Cement (2018)
Journal Article
Mastrogiacomo, S., Kownacka, A. E., Dou, W., Burke, B. P., de Rosales, R. T., Heerschap, A., Jansen, J. A., Archibald, S. J., & Walboomers, X. F. (2018). Bisphosphonate Functionalized Gadolinium Oxide Nanoparticles Allow Long-Term MRI/CT Multimodal Imaging of Calcium Phosphate Bone Cement. Advanced Healthcare Materials, 7(19), Article 1800202. https://doi.org/10.1002/adhm.201800202

Direct in vivo monitoring of bioconstructs using noninvasive imaging modalities such as magnetic resonance imaging (MRI) or computed tomography (CT) is not possible for many materials. Calcium phosphate–based composites (CPCs) that are applicable to... Read More about Bisphosphonate Functionalized Gadolinium Oxide Nanoparticles Allow Long-Term MRI/CT Multimodal Imaging of Calcium Phosphate Bone Cement.

Increase of Direct C-C Coupling Reaction Yield by Identifying Structural and Electronic Properties of High-Spin Iron Tetra-azamacrocyclic Complexes (2018)
Journal Article
Brewer, S. M., Wilson, K. R., Jones, D. G., Reinheimer, E. W., Archibald, S. J., Prior, T. J., Ayala, M. A., Foster, A. L., Hubin, T. J., & Green, K. N. (2018). Increase of Direct C-C Coupling Reaction Yield by Identifying Structural and Electronic Properties of High-Spin Iron Tetra-azamacrocyclic Complexes. Inorganic chemistry, 57(15), 8890-8902. https://doi.org/10.1021/acs.inorgchem.8b00777

Macrocyclic ligands have been explored extensively as scaffolds for transition metal catalysts for oxygen and hydrogen atom transfer reactions. C–C reactions facilitated using earth abundant metals bound to macrocyclic ligands have not been well-unde... Read More about Increase of Direct C-C Coupling Reaction Yield by Identifying Structural and Electronic Properties of High-Spin Iron Tetra-azamacrocyclic Complexes.

Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals (2018)
Journal Article
Tarn, M. D., Kızılyer, N. Y., Esfahani, M. M. N., Joshi, P., Brown, N. J., Pamme, N., Jenkins, D. G., & Archibald, S. J. (2018). Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals. Chemistry: a European journal, 24(52), 13749-13753. https://doi.org/10.1002/chem.201802395

A miniaturized radio-HPLC detector has been developed comprising a microfluidic device fabricated from plastic scintillator in combination with a silicon photomultiplier light sensor, and tested with samples containing a positron-emitting radionuclid... Read More about Plastic scintillator-based microfluidic devices for miniaturized detection of Positron Emission Tomography radiopharmaceuticals.

Synthesis, Crystal Structure, and Cytotoxicity Studies of titanacalix[4 and 8]arene Complexes (2018)
Journal Article
Miller-Shakesby, D. M., Nigam, S., Hughes, D. L., Lopez-Estelles, E., Elsegood, M. R., Cawthorne, C. J., Archibald, S. J., & Redshaw, C. (2018). Synthesis, Crystal Structure, and Cytotoxicity Studies of titanacalix[4 and 8]arene Complexes. Dalton Transactions : an international journal of inorganic chemistry, 47(27), 8992-8999. https://doi.org/10.1039/c8dt01992d

© 2018 The Royal Society of Chemistry. Reaction of 5,11,17,23-tetra-tert-butyl-dihydroxy-26,28-bis(2-pentoxy)calix[4]arene (L(OH)2(Opentyl)2) with [TiCl4] afforded the dichlorotitanoacalix[4]arene complex [TiCl2L(O)2(Opentyl)2] (1) in good yield. Hyd... Read More about Synthesis, Crystal Structure, and Cytotoxicity Studies of titanacalix[4 and 8]arene Complexes.

Fluoride doped γ-Fe2O3 nanoparticles with increased MRI relaxivity (2018)
Journal Article
Jones, N. E., Burnett, C. A., Salamon, S., Landers, J., Wende, H., Lazzarini, L., Gibbs, P., Pickles, M., Johnson, B. R., Evans, D. J., Archibald, S. J., & Francesconi, M. G. (2018). Fluoride doped γ-Fe2O3 nanoparticles with increased MRI relaxivity. Journal of Materials Chemistry B, 6(22), 3665-3673. https://doi.org/10.1039/c8tb00360b

Iron oxide nanoparticles (IONs) are being actively researched and experimented with as contrast agents for Magnetic Resonance Imaging (MRI), as well as image-directed delivery of therapeutics. The efficiency of an MRI contrast agent can be described... Read More about Fluoride doped γ-Fe2O3 nanoparticles with increased MRI relaxivity.

Synthesis, characterization and in vivo evaluation of a magnetic cisplatin delivery nanosystem based on PMAA-graft-PEG copolymers (2016)
Journal Article
Voulgari, E., Bakandritsos, A., Galtsidis, S., Zoumpourlis, V., Burke, B. P., Clemente, G. S., Cawthorne, C., Archibald, S. J., Tuček, J., Zbořil, R., Kantarelou, V., Karydas, A. G., & Avgoustakis, K. (2016). Synthesis, characterization and in vivo evaluation of a magnetic cisplatin delivery nanosystem based on PMAA-graft-PEG copolymers. Journal of controlled release : official journal of the Controlled Release Society, 243, 342-356. https://doi.org/10.1016/j.jconrel.2016.10.021

© 2016 Elsevier B.V. The development of anticancer drug delivery systems which retain or enhance the cytotoxic properties of the drug to tumorous tissues, while reducing toxicity to other organs is of key importance. We investigated different poly(me... Read More about Synthesis, characterization and in vivo evaluation of a magnetic cisplatin delivery nanosystem based on PMAA-graft-PEG copolymers.

Aspartate-Based CXCR4 Chemokine Receptor Binding of Cross-Bridged Tetraazamacrocyclic Copper(II) and Zinc(II) Complexes (2016)
Journal Article
Maples, R. D., Cain, A. N., Burke, B. P., Silversides, J. D., Mewis, R. E., D'huys, T., Schols, D., Linder, D. P., Archibald, S. J., & Hubin, T. J. (2016). Aspartate-Based CXCR4 Chemokine Receptor Binding of Cross-Bridged Tetraazamacrocyclic Copper(II) and Zinc(II) Complexes. Chemistry: a European journal, 22(36), 12916-12930. https://doi.org/10.1002/chem.201601468

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The CXCR4 chemokine receptor is implicated in a number of diseases including HIV infection and cancer development and metastasis. Previous studies have demonstrated that configurationally restricted... Read More about Aspartate-Based CXCR4 Chemokine Receptor Binding of Cross-Bridged Tetraazamacrocyclic Copper(II) and Zinc(II) Complexes.

Monolith-based68Ga processing: A new strategy for purification to facilitate direct radiolabelling methods (2016)
Journal Article
He, P., Burke, B. P., Clemente, G. S., Brown, N., Pamme, N., & Archibald, S. J. (2016). Monolith-based68Ga processing: A new strategy for purification to facilitate direct radiolabelling methods. Reaction Chemistry and Engineering, 1(4), 361-365. https://doi.org/10.1039/c6re00081a

The post-processing of68Ga generator eluate by means of a novel high capacity cation-exchange silica monolith column has been validated in this work. Quantitative release of a purified68Ga solution in high concentration can be achieved using weak aci... Read More about Monolith-based68Ga processing: A new strategy for purification to facilitate direct radiolabelling methods.

Development of radiodetection systems towards miniaturised quality control of PET and SPECT radiopharmaceuticals (2016)
Journal Article
Taggart, M. P., Tarn, M. D., Esfahani, M. M. N., Schofield, D. M., Brown, N. J., Archibald, S. J., Deakin, T., Pamme, N., & Thompson, L. F. (2016). Development of radiodetection systems towards miniaturised quality control of PET and SPECT radiopharmaceuticals. Lab on a chip, 16(9), 1605-1616. https://doi.org/10.1039/c6lc00099a

The ability to detect radiation in microfluidic devices is important for the on-chip analysis of radiopharmaceuticals, but previously reported systems have largely suffered from various limitations including cost, complexity of fabrication, and insuf... Read More about Development of radiodetection systems towards miniaturised quality control of PET and SPECT radiopharmaceuticals.

Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes (2016)
Journal Article
Miller-Shakesby, D. M., Burke, B. P., Nigam, S., Stasiuk, G. J., Prior, T. J., Archibald, S. J., & Redshaw, C. (2016). Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes. CrystEngComm RSC, 18(26), 4977-4987. https://doi.org/10.1039/c6ce00209a

A number of p-sulfonatocalix[4]arene complexes of the lanthanides (Tb, Gd, and Eu) have been prepared, some in the presence of tetraazamacrocycle 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (DO3A), and fully characterised. Crystal structure d... Read More about Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes.

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.

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 Radiotracer Quality Control: Miniaturised On-Chip Absorbance Spectroscopy (2015)
Journal Article
Tarn, M., Brown, N., Pamme, N., & Archibald, S. (2015). Integrated Microfluidic Radiotracer Quality Control: Miniaturised On-Chip Absorbance Spectroscopy. Journal of Labelled Compounds and Radiopharmaceuticals, 58(S1), S20. https://doi.org/10.1002/jlcr.3302_1

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.

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.

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.

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.

MRI contrast agent delivery using spore capsules: controlled release in blood plasma (2009)
Journal Article
Lorch, M., Thomasson, M. J., Diego-Taboada, A., Barrier, S., Atkin, S. L., Mackenzie, G., & Archibald, S. J. (2009). MRI contrast agent delivery using spore capsules: controlled release in blood plasma. Chemical communications : Chem comm / the Royal Society of Chemistry, 6442-6444. https://doi.org/10.1039/b909551a

The exine coatings of spores can be used to encapsulate drug molecules. We have demonstrated that these microcapsules can be filled with a commercial gadolinium(III) MRI contrast agent (in this proof of concept study Gd-DTPA-BMA was used) which is sl... Read More about MRI contrast agent delivery using spore capsules: controlled release in blood plasma.

Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand (2009)
Journal Article
Mewis, R. E., Savoie, H., Archibald, S. J., & Boyle, R. W. (2009). Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand. Photodiagnosis and Photodynamic Therapy, 6(3-4), 200-206. https://doi.org/10.1016/j.pdpdt.2009.08.002

Treatment of 5,10,15,20-tetra(pentafluorophenyl) porphyrins with polyethylene glycol (PEG) halides and sodium sulfide is a mild and efficient route to water-soluble PEG substituted porphyrins. The method has been used to access a series of free-base... Read More about Synthesis and phototoxicity of polyethylene glycol (PEG) substituted metal-free and metallo-porphyrins: Effect of PEG chain length, coordinated metal, and axial ligand.

CXCR4 antagonists: a new generation of configurationally restricted bis-azamacrocyclic compounds (2009)
Journal Article
Khan, A., Nicholson, G., McRobbie, G., Greenman, J., Pannecouque, C., Daelemans, D., Schols, D., De CLercq, E., Hubin, T. J., & Archibald, S. J. (2009). CXCR4 antagonists: a new generation of configurationally restricted bis-azamacrocyclic compounds. Antiviral research, 82(2), A59-A60. https://doi.org/10.1016/j.antiviral.2009.02.141

AMD3100 is a bis-azamacrocyclic compound that has been demonstrated to be a highly effective antagonist of the CXCR4 chemokine receptor. The two azamacrocyclic rings have been shown to interact with aspartate residues on the receptor via hydrogen bon... Read More about CXCR4 antagonists: a new generation of configurationally restricted bis-azamacrocyclic compounds.

Binding Optimization through Coordination Chemistry: CXCR4 Chemokine Receptor Antagonists from Ultrarigid Metal Complexes (2009)
Journal Article
Khan, A., Nicholson, G., McRobbie, G., Pannecouque, C., De Clercq, E., Ullom, R., Maples, D. L., Maples, R. D., Silversides, J. D., Hubin, T. J., Archibald, S. J., Madden, L., & Greenman, J. (2009). Binding Optimization through Coordination Chemistry: CXCR4 Chemokine Receptor Antagonists from Ultrarigid Metal Complexes. Journal of the American Chemical Society, 131(10), 3416-3417. https://doi.org/10.1021/ja807921k

A new copper(II) containing bis-macrocyclic CXCR4 chemokine receptor antagonist is shown to have improved binding properties to the receptor protein in comparison to the drug AMD3100 (Plerixafor, Mozobil). The interaction of the metallodrug has been... Read More about Binding Optimization through Coordination Chemistry: CXCR4 Chemokine Receptor Antagonists from Ultrarigid Metal Complexes.

Reductive Amination-A convenient method for generating diverse, mono-functionalised 5,10,15,20-tetraphenyl porphyrins (2009)
Journal Article
Welch, C., Archibald, S. J., & Boyle, R. (2009). Reductive Amination-A convenient method for generating diverse, mono-functionalised 5,10,15,20-tetraphenyl porphyrins. SYNTHESIS, 2009(4), 551-556. https://doi.org/10.1055/s-0028-1083335

Formylation followed by reductive amination of 5,10,15,20-tetraphenyl porphyrin (TPP) is shown to be a versatile synthetic procedure for monosubstitution of the porphyrin core re-giospecifically at one β-position. A diverse range of substituents can... Read More about Reductive Amination-A convenient method for generating diverse, mono-functionalised 5,10,15,20-tetraphenyl porphyrins.