Výsledky vyhledávání - "Grégory Thiabaud"

Reduced texaphyrin: A ratiometric optical sensor for heavy metals in aqueous solution

Autor: Grégory Thiabaud, Harrison D. Root, Jonathan L. Sessler

Publikováno v: Frontiers of Chemical Science and Engineering. 14:19-27

We report here a water-soluble metal cation sensor system based on the as-prepared or reduced form of an expanded porphyrin, texaphyrin. Upon metal complexation, a change in the redox state of the ligand occurs that is accompanied by a color change f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a500db6e3d6692c2223258d5b8aa994c
https://doi.org/10.1007/s11705-019-1888-y

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Condition-Dependent Coordination and Peroxidase Activity of Hemin-Aβ Complexes

Autor: Luigi Casella, James T. Brewster, Grégory Thiabaud, Chiara Bacchella, Harrison D. Root, Jonathan L. Sessler, Simone Dell'Acqua, Enrico Monzani, Steffen Bähring, James F. Reuther

Publikováno v: Molecules
Volume 25
Issue 21
Bacchella, C, Brewster, J T, Bähring, S, Dell’Acqua, S, Root, H D, Thiabaud, G D, Reuther, J F, Monzani, E, Sessler, J L & Casella, L 2020, ' Condition-Dependent Coordination and Peroxidase Activity of Hemin-Aβ Complexes ', Molecules, vol. 25, no. 21, 5044 . https://doi.org/10.3390/molecules25215044
Molecules, Vol 25, Iss 5044, p 5044 (2020)

The peroxidase activity of hemin-peptide complexes remains a potential factor in oxidative damage relevant to neurodegeneration. Here, we present the effect of temperature, ionic strength, and pH relevant to pathophysiological conditions on the dynam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44f43f54ea710856b22b0379cd0a94aa
https://pubmed.ncbi.nlm.nih.gov/33143109

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Manganese(II) Texaphyrin: A Paramagnetic Photoacoustic Contrast Agent Activated by Near-IR Light

Autor: Jusung An, Yaguang Ren, Calvin V. Chau, Adam C. Sedgwick, Jonathan F. Arambula, Jingqin Chen, Grégory Thiabaud, Jong Seung Kim, Chengbo Liu, Xiao-Peng He, Jonathan L. Sessler

Publikováno v: Journal of the American Chemical Society. 142(38)

The NIR absorptivity of the metallotexaphyrin derivatives MMn, MGd, and MLu for photoacoustic (PA)-based imaging is explored in this study. All three complexes demonstrated excellent photostabilities; however, MMn provided the greatest PA signal inte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::250fddf328b575f41890478cfddb028b
https://pubmed.ncbi.nlm.nih.gov/32914968

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Oxaliplatin Pt(IV) prodrugs conjugated to gadolinium-texaphyrin as potential antitumor agents

Autor: Julie Alaniz, Alan B. Watts, Sajal Sen, Guangan He, Jonathan F. Arambula, Zahid H. Siddik, Grégory Thiabaud, Kathryn A. Shelton, Mi Young Cho, Wallace B. Baze, Luke J. Segura, Rick A. Finch, Ruben Munoz Macias, Jonathan L. Sessler, Hyunmin Kim, Kwan Soo Hong, Greg Lyness, Hyunseung Lee

Publikováno v: Proc Natl Acad Sci U S A

Described here is the development of gadolinium(III) texaphyrin-platinum(IV) conjugates capable of overcoming platinum resistance by 1) localizing to solid tumors, 2) promoting enhanced cancer cell uptake, and 3) reactivating p53 in platinum-resistan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9e53b2cc77d9e785507b9076d8f3813
https://europepmc.org/articles/PMC7132275/

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Rapid insertion of bismuth radioactive isotopes into texaphyrin in aqueous media

Autor: Justin J. Wilson, Kevin D. John, Grégory Thiabaud, Valery Radchenko, Eva R. Birnbaum, Jonathan L. Sessler

Publikováno v: Journal of Porphyrins and Phthalocyanines. 21:882-886

Radioisotopes [Formula: see text]Bi and [Formula: see text]Bi were successfully inserted into a water-soluble and tumor-targeting texaphyrin ligand. The reaction with [Formula: see text]Bi(OAc)[Formula: see text] proceeds in about 15 min in aqueous m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e728124008f20e0fa3aedbb94ae6840
https://doi.org/10.1142/s1088424617500870

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Platinum(IV)-Ferrocene Conjugates and Their Cyclodextrin Host–Guest Complexes

Autor: Sajal Sen, Xiaodong Chi, Vincent M. Lynch, Grégory Thiabaud, James L. Bachman, Yoo-Jin Ghang, Jonathan L. Sessler, Louis Harden-Bull, Zahid H. Siddik

Reported here are new platinum(IV) (Pt(IV)) complexes bearing ferrocene (Fc) moieties. These systems differ from one another only by the nature of the functional group (ester vs amide) connecting the linker to the Fc subunits. This minor structural v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9ee707f278dd3884908579a21646304
https://europepmc.org/articles/PMC6953482/

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Synthesis and Characterization of a Binuclear Copper(II)-dipyriamethyrin Complex: [Cu2(dipyriamethyrin)(μ2-1,1-acetato)2]

Autor: James T. Brewster, Jiaming He, Harrison D. Root, Hadiqa Zafar, Jonathan L. Sessler, Grégory Thiabaud, Adam C. Sedgwick, Vincent M. Lynch

Publikováno v: Molecules, Vol 25, Iss 6, p 1446 (2020)
Molecules

The reaction between dipyriamethyrin and copper(II) acetate [Cu(OAc)2] afforded what is, to our knowledge, the first transition metal-dipyriamethyrin complex. Molecular and electronic characterization of this binuclear Cu(II) complex via EPR, UV-vis,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3b30fff14f6d4d10029546b9e1e49e4
https://doi.org/10.3390/molecules25061446

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Gating the electron transfer at a monocopper centre through the supramolecular coordination of water molecules within a protein chamber mimic

Autor: Jan Řezáč, Aurélien de la Lande, Antony Memboeuf, Yves Le Mest, Bénédicte Douziech, Claudio Iacobucci, Thierry Prangé, Olivia Reinaud, Dany Jeanne Dit Fouque, Nicolas Le Poul, Grégory Thiabaud, Benoit Colasson

Publikováno v: Chemical Science
Chemical Science, The Royal Society of Chemistry, In press, ⟨10.1039/C8SC03124J⟩
Chemical Science, In press, ⟨10.1039/C8SC03124J⟩

Functionality of enzymes is strongly related to water dynamic processes.
Functionality of enzymes is strongly related to water dynamic processes. The control of the redox potential for metallo-enzymes is intimately linked to the mediation of wat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2c6615ce00898c189b6a6881e8dc0f8
https://hal.univ-brest.fr/hal-01874257

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Synthesis and Characterization of a Binuclear Copper(II) Naphthoisoamethyrin Complex Displaying Weak Antiferromagnetic Coupling

Autor: Hadiqa Zafar, James T. Brewster, Matthew D. Moore, Gonzalo Anguera, Vincent M. Lynch, Grégory Thiabaud, Brian S. Dolinar, Simon M. Humphrey, Jonathan L. Sessler

Publikováno v: Inorganic chemistry. 56(21)

The reaction between a naphthylbipyrrole-containing hexaphyrin-type expanded porphyrin and copper acetate affords a bench-stable dicopper(II) complex. UV–vis spectroscopy, cyclic voltammetry, and X-ray crystallographic analysis measurements provide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8628a66b9fdab52da849776a7434c08
https://pubmed.ncbi.nlm.nih.gov/28990790

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