Outputs (13)

Covalent attachment of active enzymes to upconversion phosphors allows ratiometric detection of substrates (2020)
Journal Article
Burgess, L., Wilson, H., Jones, A. R., Harvey, P., Natrajan, L., & Hay, S. (2020). Covalent attachment of active enzymes to upconversion phosphors allows ratiometric detection of substrates. Chemistry - A European Journal, 26(65), 14817-14822. https://doi.org/10.1002/chem.202001974

Upconverting phosphors (UCPs) convert multiple low energy photons into higher energy emission via the process of photon upconversion and offer an attractive alternative to organic fluorophores for use as luminescent probes. Here, UCPs were capped wit... Read More about Covalent attachment of active enzymes to upconversion phosphors allows ratiometric detection of substrates.

Pro-organic radical contrast agents (“pro-ORCAs”) for real-time MRI of pro-drug activation in biological systems (2020)
Journal Article
Nguyen, H. V., Detappe, A., Harvey, P., Gallagher, N., Mathieu, C., Agius, M. P., …Johnson, J. A. (2020). Pro-organic radical contrast agents (“pro-ORCAs”) for real-time MRI of pro-drug activation in biological systems. Polymer Chemistry, 11(29), 4768-4779. https://doi.org/10.1039/d0py00558d

Nitroxide-based organic-radical contrast agents (ORCAs) are promising as safe next-generation magnetic resonance imaging (MRI) tools. Nevertheless, stimuli-responsive ORCAs that enable MRI monitoring of prodrug activation have not been reported; such... Read More about Pro-organic radical contrast agents (“pro-ORCAs”) for real-time MRI of pro-drug activation in biological systems.

Image-guided neural activity manipulation with a paramagnetic drug (2020)
Journal Article
Bricault, S., Barandov, A., Harvey, P., DeTienne, E., Hai, A., & Jasanoff, A. (2020). Image-guided neural activity manipulation with a paramagnetic drug. Nature Communications, 11(1), Article 136. https://doi.org/10.1038/s41467-019-13933-5

© 2020, The Author(s). Targeted manipulations of neural activity are essential approaches in neuroscience and neurology, but monitoring such procedures in the living brain remains a significant challenge. Here we introduce a paramagnetic analog of th... Read More about Image-guided neural activity manipulation with a paramagnetic drug.

Antibody-targeting of ultra-small nanoparticles enhances imaging sensitivity and enables longitudinal tracking of multiple myeloma (2019)
Journal Article
Detappe, A., Reidy, M., Yu, Y., Mathieu, C., Nguyen, H. V., Coroller, T. P., …Ghoroghchian, P. P. (2019). Antibody-targeting of ultra-small nanoparticles enhances imaging sensitivity and enables longitudinal tracking of multiple myeloma. Nanoscale, 11(43), 20485-20496. https://doi.org/10.1039/c9nr06512a

Monitoring malignant progression and disease recurrence post-therapy are central challenges to improving the outcomes of patients with multiple myeloma (MM). Whereas current detection methods that rely upon bone marrow examination allow for precise m... Read More about Antibody-targeting of ultra-small nanoparticles enhances imaging sensitivity and enables longitudinal tracking of multiple myeloma.

Triply Loaded Nitroxide Brush-Arm Star Polymers Enable Metal-Free Millimetric Tumor Detection by Magnetic Resonance Imaging (2018)
Journal Article
Nguyen, H. V., Detappe, A., Gallagher, N. M., Zhang, H., Harvey, P., Yan, C., …Johnson, J. A. (2018). Triply Loaded Nitroxide Brush-Arm Star Polymers Enable Metal-Free Millimetric Tumor Detection by Magnetic Resonance Imaging. ACS Nano, 12(11), 11343-11354. https://doi.org/10.1021/acsnano.8b06160

© 2018 American Chemical Society. Nitroxides occupy a privileged position among plausible metal-free magnetic resonance imaging (MRI) contrast agents (CAs) due to their inherently low-toxicity profiles; nevertheless, their translational development h... Read More about Triply Loaded Nitroxide Brush-Arm Star Polymers Enable Metal-Free Millimetric Tumor Detection by Magnetic Resonance Imaging.

Sensing Uranyl(VI) Ions by Coordination and Energy Transfer to a Luminescent Europium(III) Complex (2018)
Journal Article
Harvey, P., Nonat, A., Platas-Iglesias, C., Natrajan, L. S., & Charbonnière, L. J. (2018). Sensing Uranyl(VI) Ions by Coordination and Energy Transfer to a Luminescent Europium(III) Complex. Angewandte Chemie, 130(31), 10069-10072. https://doi.org/10.1002/ange.201805316

The release of uranyl(VI) is a hazardous environmental issue, with limited ways to monitor accumulation in situ. Here, we present a method for the detection of uranyl(VI) ions through the utilization of a unique fluorescence energy transfer process t... Read More about Sensing Uranyl(VI) Ions by Coordination and Energy Transfer to a Luminescent Europium(III) Complex.

Probing the brain with molecular fMRI (2018)
Journal Article
Ghosh, S., Harvey, P., Simon, J. C., & Jasanoff, A. (2018). Probing the brain with molecular fMRI. Current Opinion in Neurobiology, 50, 201-210. https://doi.org/10.1016/j.conb.2018.03.009

© 2018 Elsevier Ltd One of the greatest challenges of modern neuroscience is to incorporate our growing knowledge of molecular and cellular-scale physiology into integrated, organismic-scale models of brain function in behavior and cognition. Molecul... Read More about Probing the brain with molecular fMRI.

Expanding the Scope of Biomolecule Monitoring with Ratiometric Signaling from Rare-Earth Upconverting Phosphors (2017)
Journal Article
Oakland, C., Andrews, M. B., Burgess, L., Jones, A., Hay, S., Harvey, P., & Natrajan, L. S. (2017). Expanding the Scope of Biomolecule Monitoring with Ratiometric Signaling from Rare-Earth Upconverting Phosphors. European Journal of Inorganic Chemistry, 2017(44), 5176-5185. https://doi.org/10.1002/ejic.201700717

Upconversion (UC) is a powerful mulitphoton mechanism that converts low?energy photons into higher energy emission. One of the most investigated UC systems is upconverting phosphors (UCPs). Here, a new, one?pot synthetic procedure was used to prepare... Read More about Expanding the Scope of Biomolecule Monitoring with Ratiometric Signaling from Rare-Earth Upconverting Phosphors.

Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes (2014)
Journal Article
Funk, A. M., Finney, K. N. A., Harvey, P., Kenwright, A. M., Neil, E. R., Rogers, N. J., …Parker, D. (2014). Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes. Chemical Science, 6(3), 1655-1662. https://doi.org/10.1039/c4sc03429e

The origins of the breakdown of Bleaney's theory of magnetic anisotropy are described, based on an analysis of eleven different complexes of the second half of the 4f elements that form isostructural series. An examination of the chemical shift and r... Read More about Critical analysis of the limitations of Bleaney's theory of magnetic anisotropy in paramagnetic lanthanide coordination complexes.

Moving the goal posts: enhancing the sensitivity of PARASHIFT proton magnetic resonance imaging and spectroscopy (2013)
Journal Article
Harvey, P., Blamire, A. M., Wilson, J. I., Finney, K. N. A., Funk, A. M., Senanayake, P. K., & Parker, D. (2013). Moving the goal posts: enhancing the sensitivity of PARASHIFT proton magnetic resonance imaging and spectroscopy. Chemical Science, 4(11), 4251-4258. https://doi.org/10.1039/c3sc51526e

Paramagnetic probes for chemical shift imaging are described, in which a reporting tert-butyl resonance is integrated and placed about 6 to 6.5 Å from a lanthanide ion. At this distance, the resonance is shifted to a region of the 1H NMR spectral win... Read More about Moving the goal posts: enhancing the sensitivity of PARASHIFT proton magnetic resonance imaging and spectroscopy.