Fluoride doped γ-Fe2O3 nanoparticles with increased MRI relaxivity

Jones, N. E.; Burnett, C. A.; Salamon, S.; Landers, J.; Wende, H.; Lazzarini, L.; Gibbs, P.; Pickles, M.; Johnson, B. R.G.; Evans, D. J.; Archibald, S. J.; Francesconi, M. G.

doi:10.1039/c8tb00360b

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, Characterisation and Radiolabelling of Nanoparticles for Applications in Medical Imaging (2020)
Thesis
Alresheedi, T. M. (2020). Synthesis, Characterisation and Radiolabelling of Nanoparticles for Applications in Medical Imaging. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4912677

Nanoparticles for medical applications are on the verge of having a major impact in modern medicine. They can be radiolabelled with a range of radionuclides and the accumulation in the target tissues can be observed by positron emission tomography (P... Read More about Synthesis, Characterisation and Radiolabelling of Nanoparticles for Applications in Medical Imaging.

CXCR4 and ACKR3 binding agents for imaging applications in cancer (2019)
Thesis
Renard, I. (2019). CXCR4 and ACKR3 binding agents for imaging applications in cancer. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4912463

The chemokine receptors CXCR4 and ACKR3 have been shown to be over-expressed in multiple types of cancer and are usually associated with aggressive phenotypes and poor prognosis. Successfully targeting and imaging the expression levels of these recep... Read More about CXCR4 and ACKR3 binding agents for imaging applications in cancer.

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.

All Outputs (44)