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Bélteki R, Kuklis L, Gombár G, Ungor D, Csapó E. The Role of the Amino Acid Molecular Characteristics on the Formation of Fluorescent Gold- and Silver-Based Nanoclusters. Chemistry 2023; 29:e202300720. [PMID: 37258456 DOI: 10.1002/chem.202300720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 06/02/2023]
Abstract
Role of amino acids like L-phenylalanine (Phe), L-glutamine (Gln) and L-arginine (Arg) is described and interpreted in terms of their potential for preparation of fluorescent molecular-like gold and silver nanostructures. We are among the first to demonstrate the effect of syntheses conditions as well as the molecular characteristics of Phe, Gln and Arg amino acids on the structure of the formed products. Comprehensive optical characterizations (lifetime, quantum yield (QY%)) of the blue-emitting products were also carried out. It was confirmed that for all Au-containing samples and for Gln-Ag system the characteristic fluorescence originates from few-atomic metallic nanoclusters (NCs) where the reduction of metal ions was promoted by citrate in some cases. Relatively high QY% (∼18 %) was obtained for Arg-stabilized Au NCs due to the existence of an electrostatic interaction between the electron rich, positively charged guanidium side chain of Arg and the negatively charged carboxylate group of citrate on the metallic surface. Size and structural analysis of the products were evaluated by infrared measurements and dynamic light scattering techniques.
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Affiliation(s)
- Rita Bélteki
- MTA-SZTE Lendület "Momentum" Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, 6720, Szeged, Hungary
| | - Loretta Kuklis
- MTA-SZTE Lendület "Momentum" Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, 6720, Szeged, Hungary
| | - Gyöngyi Gombár
- MTA-SZTE Lendület "Momentum" Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, 6720, Szeged, Hungary
| | - Ditta Ungor
- MTA-SZTE Lendület "Momentum" Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, 6720, Szeged, Hungary
| | - Edit Csapó
- MTA-SZTE Lendület "Momentum" Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, 6720, Szeged, Hungary
- Interdisciplinary Excellence Center Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich B. sqr. 1, H-6720, Szeged, Hungary
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Mertens RT, Gukathasan S, Arojojoye AS, Olelewe C, Awuah SG. Next Generation Gold Drugs and Probes: Chemistry and Biomedical Applications. Chem Rev 2023; 123:6612-6667. [PMID: 37071737 PMCID: PMC10317554 DOI: 10.1021/acs.chemrev.2c00649] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The gold drugs, gold sodium thiomalate (Myocrisin), aurothioglucose (Solganal), and the orally administered auranofin (Ridaura), are utilized in modern medicine for the treatment of inflammatory arthritis including rheumatoid and juvenile arthritis; however, new gold agents have been slow to enter the clinic. Repurposing of auranofin in different disease indications such as cancer, parasitic, and microbial infections in the clinic has provided impetus for the development of new gold complexes for biomedical applications based on unique mechanistic insights differentiated from auranofin. Various chemical methods for the preparation of physiologically stable gold complexes and associated mechanisms have been explored in biomedicine such as therapeutics or chemical probes. In this Review, we discuss the chemistry of next generation gold drugs, which encompasses oxidation states, geometry, ligands, coordination, and organometallic compounds for infectious diseases, cancer, inflammation, and as tools for chemical biology via gold-protein interactions. We will focus on the development of gold agents in biomedicine within the past decade. The Review provides readers with an accessible overview of the utility, development, and mechanism of action of gold-based small molecules to establish context and basis for the thriving resurgence of gold in medicine.
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Affiliation(s)
- R Tyler Mertens
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Sailajah Gukathasan
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Adedamola S Arojojoye
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Chibuzor Olelewe
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Samuel G Awuah
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506, United States
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, Kentucky 40536, United States
- University of Kentucky Markey Cancer Center, Lexington, Kentucky 40536, United States
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Gao X, Zhao B, Deng J. Chirality Transfer from Polylactide to Achiral Fluorophore in Hierarchical Crystallization for Realizing Handedness-Tunable and Nonreciprocal Circularly Polarized Luminescence. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xinhui Gao
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Biao Zhao
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Zhang J, Schaly A, Chambron JC, Vincent B, Zorn N, Leize-Wagner E, Jean M, Vanthuyne N. Alkynylgold(I) C 3 -Chiral Concave Complexes: Aggregation and Luminescence. Chemistry 2021; 28:e202103759. [PMID: 34962011 DOI: 10.1002/chem.202103759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 11/11/2022]
Abstract
Chiral gold(I) acetylide trinuclear complexes 1-3 based on the cyclotribenzylene platform and terminal PR3 ligands (R=Ph, Et, and Cy, respectively), were characterized and their light emission studied. They exhibited long-lived blue phosphorescence in CHCl3 and a weak fluorescence in the UV. In MeOH/CHCl3 mixtures of >1:1 volume ratio, 1 and 2 exhibited a new emission band at ca. 540 nm that developed at the expense of the UV emission. DLS studies demonstrated the presence of molecular aggregates of Ø 30-80 nm. The green emission observed in MeOH-rich solvent mixtures was therefore induced by aggregation, and could originate from Au⋅⋅⋅Au interactions. The AIE spectrum of 3 was observed only in solutions containing 99 % of MeOH, and correlated with its solid state emission. The AIE profiles of the enantiomers of 1 differed from that of rac-1, suggesting that the latter is a true racemate.
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Affiliation(s)
- Jing Zhang
- Institut de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 1, rue Blaise Pascal, BP 296 R8, 67008, Strasbourg, France
| | - Astrid Schaly
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302 CNRS, Université Bourgogne Franche-Comté, 9, avenue Alain Savary, 21078, Dijon, France
| | - Jean-Claude Chambron
- Institut de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 1, rue Blaise Pascal, BP 296 R8, 67008, Strasbourg, France.,Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR 6302 CNRS, Université Bourgogne Franche-Comté, 9, avenue Alain Savary, 21078, Dijon, France
| | - Bruno Vincent
- Institut de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 1, rue Blaise Pascal, BP 296 R8, 67008, Strasbourg, France
| | - Nathalie Zorn
- Chimie de la Matière Complexe, UMR 7140 CNRS, Université de Strasbourg, 4, rue Blaise Pascal, 67070, Strasbourg, France
| | - Emmanuelle Leize-Wagner
- Chimie de la Matière Complexe, UMR 7140 CNRS, Université de Strasbourg, 4, rue Blaise Pascal, 67070, Strasbourg, France
| | - Marion Jean
- Aix Marseille Univ, CNRS Centrale Marseille, iSm2, Marseille, France
| | - Nicolas Vanthuyne
- Aix Marseille Univ, CNRS Centrale Marseille, iSm2, Marseille, France
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Rosental M, Coldman RN, Moro AJ, Angurell I, Gomila RM, Frontera A, Lima JC, Rodríguez L. Using Room Temperature Phosphorescence of Gold(I) Complexes for PAHs Sensing. Molecules 2021; 26:molecules26092444. [PMID: 33922155 PMCID: PMC8122727 DOI: 10.3390/molecules26092444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 11/23/2022] Open
Abstract
The synthesis of two new phosphane-gold(I)–napthalimide complexes has been performed and characterized. The compounds present luminescent properties with denoted room temperature phosphorescence (RTP) induced by the proximity of the gold(I) heavy atom that favors intersystem crossing and triplet state population. The emissive properties of the compounds together with the planarity of their chromophore were used to investigate their potential as hosts in the molecular recognition of different polycyclic aromatic hydrocarbons (PAHs). Naphthalene, anthracene, phenanthrene, and pyrene were chosen to evaluate how the size and electronic properties can affect the host:guest interactions. Stronger affinity has been detected through emission titrations for the PAHs with extended aromaticity (anthracene and pyrene) and the results have been supported by DFT calculation studies.
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Affiliation(s)
- Marian Rosental
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain; (M.R.); (R.N.C.); (I.A.)
- Institute of Inorganic Chemistry, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Richard N. Coldman
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain; (M.R.); (R.N.C.); (I.A.)
| | - Artur J. Moro
- LAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (A.J.M.); (J.C.L.)
| | - Inmaculada Angurell
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain; (M.R.); (R.N.C.); (I.A.)
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Rosa M. Gomila
- Serveis Científico Tècnics, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Baleares, Spain;
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Baleares, Spain;
| | - João Carlos Lima
- LAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (A.J.M.); (J.C.L.)
| | - Laura Rodríguez
- Department of Inorganic and Organic Chemistry, Inorganic Chemistry Section, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain; (M.R.); (R.N.C.); (I.A.)
- Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
- Correspondence:
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Day AH, Domarkas J, Nigam S, Renard I, Cawthorne C, Burke BP, Bahra GS, Oyston PCF, Fallis IA, Archibald SJ, Pope SJA. Towards dual SPECT/optical bioimaging with a mitochondrial targeting, 99mTc(i) radiolabelled 1,8-naphthalimide conjugate. Dalton Trans 2020; 49:511-523. [PMID: 31844857 DOI: 10.1039/c9dt04024b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
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 allow the overall lipophilicity to be tuned. A corresponding series of Re(i) complexes have been synthesised of the form fac-[Re(CO)3(L1-6)]BF4. The absorption and luminescence properties of the ligands and Re(i) complexes were dominated by the intramolecular charge transfer character of the substituted fluorophore (typically absorption ca. 425 nm and emission ca. 520 nm). Photophysical assessments show that some of the variants are moderately bright. Radiolabelling experiments using a water soluble ligand variant (L5) were successfully undertaken and optimised with fac-[99mTc(CO)3(H2O)3]+. Confocal fluorescence microscopy showed that fac-[Re(CO)3(L5)]+ localises in the mitochondria of MCF-7 cells. SPECT/CT imaging experiments on naïve mice showed that fac-[99mTc(CO)3(L5)]+ has a relatively high stability in vivo but did not show any cardiac uptake, demonstrating rapid clearance, predominantly via the biliary system along with a moderate amount cleared renally.
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Affiliation(s)
- Adam H Day
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, Cymru/Wales, UK.
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Jamadar A, Karan CK, Roy L, Das A. Structurally Tunable pH-Responsive Luminescent Assemblies from Halogen Bonded Supra-π-amphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3089-3095. [PMID: 32164411 DOI: 10.1021/acs.langmuir.0c00443] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Supra-amphiphiles constituted of noncovalent bonds have emerged as attractive systems for fabrication of stimuli-responsive self-assembled nanostructures. A unique supramolecular strategy utilizing halogen (X)-bonding interaction has been demonstrated for constructing emissive supra-π-amphiphiles in water from a hydrophobic pyridyl functionalized naphthalene monoimide (NMI-Py) based X-bond acceptor and hydrophilic iodotetrafluorophenyl functionalized polyethylene glycol (PEG-I) or triethylene glycol (TEG-I) based X-bond donors, while their luminescent higher ordered assemblies were governed by orthogonal dipole-dipole interaction and π-stacking of the NMI-Py fluorophore as probed by SCXRD and DFT calculations. Control molecules lacking iodotetrafluorophenyl moiety at the polyethylene glycol chain end failed to create any defined morphology from the NMI-Py, suggesting X-bonding is prerequisite for the nanostructure formation. Variation in the chain length of the X-bond donors leads to different morphologies (fiber vs vesicle) for PEG-I and TEG-I. Acid triggered denaturing of the X-bonds caused pH responsive disassembly of the thermally robust nanostructures. This strategy paves the way for facile fabrication of structurally diverse smart and adaptive luminescent functional materials with tunable morphology.
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Affiliation(s)
- Akshoy Jamadar
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Chandan Kumar Karan
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai-IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar-751013, India
| | - Anindita Das
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
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Lloyd D, Millet CO, Williams CF, Hayes AJ, Pope SJA, Pope I, Borri P, Langbein W, Olsen LF, Isaacs MD, Lunding A. Functional imaging of a model unicell: Spironucleus vortens as an anaerobic but aerotolerant flagellated protist. Adv Microb Physiol 2020; 76:41-79. [PMID: 32408947 DOI: 10.1016/bs.ampbs.2020.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Advances in optical microscopy are continually narrowing the chasm in our appreciation of biological organization between the molecular and cellular levels, but many practical problems are still limiting. Observation is always limited by the rapid dynamics of ultrastructural modifications of intracellular components, and often by cell motility: imaging of the unicellular protist parasite of ornamental fish, Spironucleus vortens, has proved challenging. Autofluorescence of nicotinamide nucleotides and flavins in the 400-580 nm region of the visible spectrum, is the most useful indicator of cellular redox state and hence vitality. Fluorophores emitting in the red or near-infrared (i.e., phosphors) are less damaging and more penetrative than many routinely employed fluors. Mountants containing free radical scavengers minimize fluorophore photobleaching. Two-photon excitation provides a small focal spot, increased penetration, minimizes photon scattering and enables extended observations. Use of quantum dots clarifies the competition between endosomal uptake and exosomal extrusion. Rapid motility (161 μm/s) of the organism makes high resolution of ultrastructure difficult even at high scan speeds. Use of voltage-sensitive dyes determining transmembrane potentials of plasma membrane and hydrogenosomes (modified mitochondria) is also hindered by intracellular motion and controlled anesthesia perturbs membrane organization. Specificity of luminophore binding is always questionable; e.g. cationic lipophilic species widely used to measure membrane potentials also enter membrane-bounded neutral lipid droplet-filled organelles. This appears to be the case in S. vortens, where Coherent Anti-Stokes Raman Scattering (CARS) micro-spectroscopy unequivocally images the latter and simultaneous provides spectral identification at 2840 cm-1. Secondary Harmonic Generation highlights the highly ordered structure of the flagella.
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Affiliation(s)
- David Lloyd
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom; School of Engineering, Cardiff, Wales, United Kingdom
| | - Coralie O Millet
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | | | - Anthony J Hayes
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Simon J A Pope
- School of Chemistry, Main Building, Cardiff University, Cardiff, Wales, United Kingdom
| | - Iestyn Pope
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Paola Borri
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Wolfgang Langbein
- School of Physics and Astronomy, Cardiff University, Cardiff, Wales, United Kingdom
| | - Lars Folke Olsen
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
| | - Marc D Isaacs
- School of Biosciences, Cardiff University, Cardiff, Wales, United Kingdom
| | - Anita Lunding
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
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Mármol I, Quero J, Rodríguez-Yoldi MJ, Cerrada E. Gold as a Possible Alternative to Platinum-Based Chemotherapy for Colon Cancer Treatment. Cancers (Basel) 2019; 11:cancers11060780. [PMID: 31195711 PMCID: PMC6628079 DOI: 10.3390/cancers11060780] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/30/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023] Open
Abstract
Due to the increasing incidence and high mortality associated with colorectal cancer (CRC), novel therapeutic strategies are urgently needed. Classic chemotherapy against CRC is based on oxaliplatin and other cisplatin analogues; however, platinum-based therapy lacks selectivity to cancer cells and leads to deleterious side effects. In addition, tumor resistance to oxaliplatin is related to chemotherapy failure. Gold(I) derivatives are a promising alternative to platinum complexes, since instead of interacting with DNA, they target proteins overexpressed on tumor cells, thus leading to less side effects than, but a comparable antitumor effect to, platinum derivatives. Moreover, given the huge potential of gold nanoparticles, the role of gold in CRC chemotherapy is not limited to gold(I) complexes. Gold nanoparticles have been found to be able to overcome multidrug resistance along with reduced side effects due to a more efficient uptake of classic drugs. Moreover, the use of gold nanoparticles has enhanced the effect of traditional therapies such as radiotherapy, photothermal therapy, or photodynamic therapy, and has displayed a potential role in diagnosis as a consequence of their optic properties. Herein, we have reviewed the most recent advances in the use of gold(I) derivatives and gold nanoparticles in CRC therapy.
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Affiliation(s)
- Inés Mármol
- Department of Pharmacology and Physiology, University of Zaragoza, CIBERobn, IIS Aragón IA2, 50013 Zaragoza, Spain.
| | - Javier Quero
- Department of Pharmacology and Physiology, University of Zaragoza, CIBERobn, IIS Aragón IA2, 50013 Zaragoza, Spain.
| | - María Jesús Rodríguez-Yoldi
- Department of Pharmacology and Physiology, University of Zaragoza, CIBERobn, IIS Aragón IA2, 50013 Zaragoza, Spain.
| | - Elena Cerrada
- Deparment of Inorganic Chemistry, University of Zaragoza, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, University of Zaragoza-CSIC, 50009 Zaragoza, Spain.
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Burdette MK, Bandera YP, Zhang E, Trofimov A, Dickey A, Foulger I, Kolis JW, Cannon KE, Bartley AF, Dobrunz LE, Bolding MS, McMahon L, Foulger SH. Organic Fluorophore Coated Polycrystalline Ceramic LSO:Ce Scintillators for X-ray Bioimaging. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:171-182. [PMID: 30518207 DOI: 10.1021/acs.langmuir.8b03129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The current effort demonstrates that lutetium oxyorthosilicate doped with 1-10% cerium (Lu2SiO5:Ce, LSO:Ce) radioluminescent particles can be coated with a single dye or multiple dyes and generate an effective energy transfer between the core and dye(s) when excited via X-rays. LSO:Ce particles were surface modified with an alkyne modified naphthalimide (6-piperidin-1-yl-2-prop-2-yn-1-yl-1 H-benzo[ de]isoquinoline-1,3-(2 H)-dione, AlNap) and alkyne modified rhodamine B ( N-(6-diethylamino)-9-{2-[(prop-2-yn-1-yloxy)carbonyl]phenyl}-3 H-xanthen-3-ylidene)- N-ethylethanaminium, AlRhod) derivatives to tune the X-ray excited optical luminescence from blue to green to red using Förster Resonance Energy Transfer (FRET). As X-rays penetrate tissue much more effectively than UV/visible light, the fluorophore modified phosphors may have applications as bioimaging agents. To that end, the phosphors were incubated with rat cortical neurons and imaged after 24 h. The LSO:Ce surface modified with AlNap was able to be successfully imaged in vitro with a low-output X-ray tube. To use the LSO:Ce fluorophore modified particles as imaging agents, they must not induce cytotoxicity. Neither LSO:Ce nor LSO:Ce modified with AlNap showed any cytotoxicity toward normal human dermal fibroblast cells or mouse cortical neurons, respectively.
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Affiliation(s)
- Mary K Burdette
- Department of Materials Science and Engineering , Clemson University , Clemson , South Carolina 29634 , United States
- Center for Optical Materials Science and Engineering Technologies , Clemson University , Anderson , South Carolina 29625 , United States
| | - Yuriy P Bandera
- Department of Materials Science and Engineering , Clemson University , Clemson , South Carolina 29634 , United States
- Center for Optical Materials Science and Engineering Technologies , Clemson University , Anderson , South Carolina 29625 , United States
| | - Eric Zhang
- Department of Materials Science and Engineering , Clemson University , Clemson , South Carolina 29634 , United States
- Center for Optical Materials Science and Engineering Technologies , Clemson University , Anderson , South Carolina 29625 , United States
| | - Artem Trofimov
- Department of Materials Science and Engineering , Clemson University , Clemson , South Carolina 29634 , United States
| | - Ashley Dickey
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States
| | - Isabell Foulger
- Department of Bioengineering , Clemson University , Clemson , South Carolina 29634 , United States
| | - Joseph W Kolis
- Department of Chemistry , Clemson University , Clemson , South Carolina 29634 , United States
| | - Kelli E Cannon
- Department of Vision Science , University of Alabama at Birmingham , Birmingham , Alabama 35294 , United States
| | - Aundrea F Bartley
- Department of Neurobiology, Evelyn F. McKnight Brain Institute & Civitan International Research Center , University of Alabama at Birmingham , Birmingham , Alabama 35294 , United States
| | - Lynn E Dobrunz
- Department of Neurobiology, Evelyn F. McKnight Brain Institute & Civitan International Research Center , University of Alabama at Birmingham , Birmingham , Alabama 35294 , United States
| | - Mark S Bolding
- Department of Radiology , University of Alabama at Birmingham , Birmingham , Alabama 35294 , United States
| | - Lori McMahon
- Department of Cell, Developmental, and Integrative Biology , University of Alabama at Birmingham , Birmingham , Alabama 35294 , United States
| | - Stephen H Foulger
- Center for Optical Materials Science and Engineering Technologies , Clemson University , Anderson , South Carolina 29625 , United States
- Department of Bioengineering , Clemson University , Clemson , South Carolina 29634 , United States
- Department of Materials Science and Engineering , Clemson University , Clemson , South Carolina 29634 , United States
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Turnbull WL, Murrell E, Bulcan-Gnirss M, Majeed M, Milne M, Luyt LG. A study of 99mTc/Re-tricarbonyl complexes of 4-amino-1,8-naphthalimides. Dalton Trans 2019; 48:14077-14084. [DOI: 10.1039/c9dt01752f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
4-Amino-1,8-naphthalimide ligands were coordinated to fac-Re/99mTc(CO)3 giving complexes of varying charge for applications in fluorescence microscopy and as components of SPECT imaging agents.
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Affiliation(s)
| | - Emily Murrell
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | | | - Maryam Majeed
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | - Mark Milne
- London Regional Cancer Program
- London
- Canada
| | - Leonard G. Luyt
- Department of Chemistry
- University of Western Ontario
- London
- Canada
- London Regional Cancer Program
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Cerrada E, Fernández-Moreira V, Gimeno MC. Gold and platinum alkynyl complexes for biomedical applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2019. [DOI: 10.1016/bs.adomc.2019.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Groves LM, Williams CF, Hayes AJ, Ward BD, Isaacs MD, Symonds NO, Lloyd D, Horton PN, Coles SJ, Pope SJA. Fluorescent functionalised naphthalimides and their Au(i)–NHC complexes for potential use in cellular bioimaging. Dalton Trans 2019; 48:1599-1612. [DOI: 10.1039/c8dt04069a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A series of fluorescent gold(i)–NHC complexes have been developed and investigated as cell imaging agents.
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Affiliation(s)
- Lara M. Groves
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | | | - Anthony J. Hayes
- School of Biosciences (and Bio-imaging Research Hub)
- Sir Martin Evans Building
- Cardiff University
- Cardiff
- UK CF19 3AX
| | - Benjamin D. Ward
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Marc D. Isaacs
- School of Biosciences (and Bio-imaging Research Hub)
- Sir Martin Evans Building
- Cardiff University
- Cardiff
- UK CF19 3AX
| | - Nadine O. Symonds
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - David Lloyd
- School of Biosciences (and Bio-imaging Research Hub)
- Sir Martin Evans Building
- Cardiff University
- Cardiff
- UK CF19 3AX
| | - Peter N. Horton
- UK National Crystallographic Service
- Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton
| | - Simon J. Coles
- UK National Crystallographic Service
- Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton
| | - Simon J. A. Pope
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
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16
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Haque A, Al-Balushi RA, Al-Busaidi IJ, Khan MS, Raithby PR. Rise of Conjugated Poly-ynes and Poly(Metalla-ynes): From Design Through Synthesis to Structure-Property Relationships and Applications. Chem Rev 2018; 118:8474-8597. [PMID: 30112905 DOI: 10.1021/acs.chemrev.8b00022] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Conjugated poly-ynes and poly(metalla-ynes) constitute an important class of new materials with potential application in various domains of science. The key factors responsible for the diverse usage of these materials is their intriguing and tunable chemical and photophysical properties. This review highlights fascinating advances made in the field of conjugated organic poly-ynes and poly(metalla-ynes) incorporating group 4-11 metals. This includes several important aspects of conjugated poly-ynes viz. synthetic protocols, bonding, electronic structure, nature of luminescence, structure-property relationships, diverse applications, and concluding remarks. Furthermore, we delineated the future directions and challenges in this particular area of research.
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Affiliation(s)
- Ashanul Haque
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Rayya A Al-Balushi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Idris Juma Al-Busaidi
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Muhammad S Khan
- Department of Chemistry , Sultan Qaboos University , P.O. Box 36, Al-Khod 123 , Sultanate of Oman
| | - Paul R Raithby
- Department of Chemistry , University of Bath , Claverton Down , Bath BA2 7AY , U.K
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17
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Groves LM, Ward BD, Newman PD, Horton PN, Coles SJ, Pope SJA. Synthesis and characterisation of fluorescent aminophosphines and their coordination to gold(i). Dalton Trans 2018; 47:9324-9333. [PMID: 29947395 DOI: 10.1039/c8dt02256a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three novel fluorescent aminophosphine ligands have been synthesised that incorporate napthyl (L1), pyrenyl (L2) and anthraquinone (L3) chromophores into their structures. The ligands react with [AuCl(tht)] (tht = tetrahydrothiophene) to give neutral complexes of the form [AuCl(L1-3)]. Solid state, X-ray crystallographic data was obtained for the anthraquinone derivative, [AuCl(L3)], and showed a distorted linear coordination geometry at Au(i). The packing structure also revealed a number of intermolecular π-π interactions that involve the anthraquinone and phenyl units of the aminophosphine ligand. 31P NMR spectroscopic data revealed δP values of +42.2 (L1), +42.1 (L2) and +26.1 (L3) ppm, which shifted downfield upon coordination to Au(i) to +64.6, +64.7, and +55.8 ppm, respectively. Supporting TD-DFT studies were able to reproduce the structure and 31P NMR chemical shifts of [AuCl(L3)] as well as rationalise the HOMO-LUMO compositions. Photophysical studies showed that the appended fluorophore dominates the absorption and emission properties for the ligands and complexes, with the anthraquinone derivatives showing visible emission at ca. 570 nm which was attributed to the intramolecular charge transfer character of the phosphinoaminoanthraquinone fragment.
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Affiliation(s)
- Lara M Groves
- School of Chemistry, Main Building, Cardiff University, Cardiff CF10 3AT, UK.
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18
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Osawa M, Aino MA, Nagakura T, Hoshino M, Tanaka Y, Akita M. Near-unity thermally activated delayed fluorescence efficiency in three- and four-coordinate Au(i) complexes with diphosphine ligands. Dalton Trans 2018; 47:8229-8239. [PMID: 29756141 DOI: 10.1039/c8dt01097h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The synthesis and photoluminescence properties of three-coordinate Au(i) complexes with rigid diphosphine ligands LMe {1,2-bis[bis(2-methylphenyl)phosphino]benzene}, LEt {1,2-bis[bis(2-ethylphenyl)phosphino]benzene}, and LiPr {1,2-bis[bis(2-isopropylphenyl)phosphino]benzene} are investigated. The LMe and LEt ligands afford two types of complexes: dinuclear complexes [μ-LMe(AuCl)2] (1d) and [μ-LEt(AuCl)2] (2d) with an Au(i)-Au(i) bond and mononuclear three-coordinate Au(i) complexes LMeAuCl (1) and LEtAuCl (2). On the other hand, the bulkiest ligand, LiPr, affords three-coordinate Au(i) complexes, LiPrAuCl (3) and LiPrAuI (4), but no dinuclear complexes. X-ray analysis suggests that both 3 and 4 possess a highly distorted trigonal planar geometry. Moreover, luminescence data reveal that at room temperature, 3 and 4 exhibit yellow-green thermally activated delayed fluorescence in the crystalline state with maximum emission wavelengths at 558 and 549 nm, respectively. The emission yields are close to unity. Quantum chemical calculations suggest that the emission of 4 originates from the (σ + X) → π* excited state that possesses strong intraligand charge-transfer character. The luminescent properties of four-coordinate Au(i) complex (5) possessing a tetrahedral geometry are discussed on the basis of the emission spectra and decay times measured in a temperature range of 309-77 K.
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Affiliation(s)
- Masahisa Osawa
- Department of Applied Chemistry, Nippon Institute of Technology, Gakuendai 4-1, Miyashiro-Machi, Saitama, 345-8501, Japan.
| | - Masa-Aki Aino
- Department of Applied Chemistry, Nippon Institute of Technology, Gakuendai 4-1, Miyashiro-Machi, Saitama, 345-8501, Japan.
| | - Takaki Nagakura
- Department of Applied Chemistry, Nippon Institute of Technology, Gakuendai 4-1, Miyashiro-Machi, Saitama, 345-8501, Japan.
| | - Mikio Hoshino
- Department of Applied Chemistry, Nippon Institute of Technology, Gakuendai 4-1, Miyashiro-Machi, Saitama, 345-8501, Japan.
| | - Yuya Tanaka
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science Institute of Innovative Research, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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19
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Lizzul-Jurse A, Bailly L, Hubert-Roux M, Afonso C, Renard PY, Sabot C. Readily functionalizable phosphonium-tagged fluorescent coumarins for enhanced detection of conjugates by mass spectrometry. Org Biomol Chem 2018; 14:7777-91. [PMID: 27470182 DOI: 10.1039/c6ob01080f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent coumarins are an important class of small-molecule organic fluorophores ubiquitous in different well-established and emerging fields of research including, among others, biochemistry and chemical biology. The present work aims at covering the poor detectability of coumarin-based conjugates by mass spectrometry while keeping important photophysical properties of the coumarin core. In this context, the synthesis of readily functionalizable phosphonium-tagged coumarin derivatives enabling a dual mass-tag and fluorescence labelling of analytes or (bio)molecules of interest through a single-step protocol, is reported. The utility of these coumarins is illustrated through the preparation of fluorogenic substrates that facilitated identification of the peptide fragment released by specific proteolytic cleavages.
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Affiliation(s)
- Antoine Lizzul-Jurse
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Laetitia Bailly
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Marie Hubert-Roux
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Carlos Afonso
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Pierre-Yves Renard
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Cyrille Sabot
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
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20
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Luengo A, Fernández-Moreira V, Marzo I, Gimeno MC. Trackable Metallodrugs Combining Luminescent Re(I) and Bioactive Au(I) Fragments. Inorg Chem 2017; 56:15159-15170. [DOI: 10.1021/acs.inorgchem.7b02470] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Andrés Luengo
- Departamento de
Química Inorgánica, Instituto de Síntesis Química
y Catálisis Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009 Zaragoza, Spain
| | - Vanesa Fernández-Moreira
- Departamento de
Química Inorgánica, Instituto de Síntesis Química
y Catálisis Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009 Zaragoza, Spain
| | - Isabel Marzo
- Departamento de Bioquímica y Biología
Molecular, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - M. Concepción Gimeno
- Departamento de
Química Inorgánica, Instituto de Síntesis Química
y Catálisis Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna
12, 50009 Zaragoza, Spain
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21
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Carreño A, Solis-Céspedes E, Páez-Hernández D, Arratia-Pérez R. Exploring the geometrical and optical properties of neutral rhenium (I) tricarbonyl complex of 1,10-phenanthroline-5,6-diol using relativistic methods. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.07.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Langdon-Jones EE, Williams CF, Hayes AJ, Lloyd D, Coles SJ, Horton PN, Groves LM, Pope SJA. Luminescent 1,8-Naphthalimide-Derived ReIComplexes: Syntheses, Spectroscopy, X-ray Structure and Preliminary Bioimaging in Fission Yeast Cells. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700549] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Catrin F. Williams
- School of Engineering; Cardiff University; CF24 3AA Cardiff UK
- School of Biosciences; Cardiff University; CF10 3AT Cardiff UK
| | | | - David Lloyd
- School of Biosciences; Cardiff University; CF10 3AT Cardiff UK
| | - Simon J. Coles
- UK National Crystallographic Service; Chemistry, Faculty of Natural and Environmental Sciences; University of Southampton; Highfield SO17 1BJ, England Southampton UK
| | - Peter N. Horton
- UK National Crystallographic Service; Chemistry, Faculty of Natural and Environmental Sciences; University of Southampton; Highfield SO17 1BJ, England Southampton UK
| | - Lara M. Groves
- School of Chemistry; Cardiff University; CF10 3AT Cardiff UK
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23
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Synthesis, structure and luminescent properties of three organogold(I)-9-ethynyl-anthracence-diphosphine complexes. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.02.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Langdon-Jones EE, Jones AB, Williams CF, Hayes AJ, Lloyd D, Mottram HJ, Pope SJA. Anticancer, Azonafide-Inspired Fluorescent Ligands and Their Rhenium(I) Complexes for Cellular Imaging. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601271] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Ariana B. Jones
- School of Chemistry; Cardiff University; CF10 3AT Cardiff UK
| | - Catrin F. Williams
- School of Engineering; Cardiff University; CF24 3AA Cardiff UK
- School of Biosciences; Cardiff University; CF10 3AT Cardiff UK
| | | | - David Lloyd
- School of Biosciences; Cardiff University; CF10 3AT Cardiff UK
| | - Huw J. Mottram
- School of Pharmacy; Cardiff University; CF10 3NB Cardiff UK
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25
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Ferrer M, Giménez L, Gutiérrez A, Lima JC, Martínez M, Rodríguez L, Martín A, Puttreddy R, Rissanen K. Polypyridyl-functionalizated alkynyl gold(i) metallaligands supported by tri- and tetradentate phosphanes. Dalton Trans 2017; 46:13920-13934. [DOI: 10.1039/c7dt02732j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The synthesis of photophysical active polytopic alkynyl gold(i) metallaligands and preliminary studies of their interaction with metal cations are presented.
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Affiliation(s)
- Montserrat Ferrer
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica. Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Leticia Giménez
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica. Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Albert Gutiérrez
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica. Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - João Carlos Lima
- LAQV-REQUIMTE
- Departamento de Química
- Universidade Nova de Lisboa
- Monte de Caparica
- Portugal
| | - Manuel Martínez
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica. Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Laura Rodríguez
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica. Universitat de Barcelona
- 08028 Barcelona
- Spain
- Institut de Nanociència i Nanotecnologia (IN2UB). Universitat de Barcelona
| | - Avelino Martín
- Departamento de Química Inorgánica
- Campus Universitario-Edificio de Farmacia
- Universidad de Alcalá
- 28871 Alcalá de Henares
- Spain
| | - Rakesh Puttreddy
- Department of Chemistry
- University of Jyväskylä
- 40014 Jyväskylä
- Finland
| | - Kari Rissanen
- Department of Chemistry
- University of Jyväskylä
- 40014 Jyväskylä
- Finland
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26
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Chan KT, Tong GSM, To WP, Yang C, Du L, Phillips DL, Che CM. The interplay between fluorescence and phosphorescence with luminescent gold(i) and gold(iii) complexes bearing heterocyclic arylacetylide ligands. Chem Sci 2016; 8:2352-2364. [PMID: 28451340 PMCID: PMC5365001 DOI: 10.1039/c6sc03775e] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/03/2016] [Indexed: 01/02/2023] Open
Abstract
The photophysical properties of a series of gold(i) [LAu(C 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 1111111111111111111111111111111111 1111111111111111111111111111111111 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 0000000000000000000000000000000000 CR)] (L = PCy3 (1a-4a), RNC (5a), NHC (6a)) and gold(iii) complexes [Au(C^N^C)(CCR)] (1b-4b) bearing heterocyclic arylacetylide ligands with narrow band-gap are compared. The luminescence of both series are derived from an intraligand transition localized on the arylacetylide ligand (ππ*(CCR)) but 1a-3a displayed prompt fluorescence (τPF = 2.7-12.0 ns) while 1b-3b showed mainly phosphorescence (τPh = 104-205 μs). The experimentally determined intersystem crossing (ISC) rate constants (kISC) are on the order of 106 to 108 s-1 for the gold(i) series (1a-3a) but 1010 to 1011 s-1 for the gold(iii) analogues (1b-3b). DFT/TDDFT calculations have been performed to help understand the difference in the kISC between the two series of complexes. Owing to the different oxidation states of the gold ion, the Au(i) complexes have linear coordination geometry while the Au(iii) complexes are square planar. It was found from DFT/TDDFT calculations that due to this difference in coordination geometries, the energy gap between the singlet and triplet excited states (ΔEST) with effective spin-orbit coupling (SOC) for Au(i) systems is much larger than that for the Au(iii) counterparts, thus resulting in the poor ISC efficiency for the former. Time-resolved spectroscopies revealed a minor contribution (<2.9%) of a long-lived delayed fluorescence (DF) (τDF = 4.6-12.5 μs) to the total fluorescence in 1a-3a. Attempts have been made to elucidate the mechanism for the origins of the DF: the dependence of the DF intensity with the power of excitation light reveals that triplet-triplet annihilation (TTA) is the most probable mechanism for the DF of 1a while germinate electron-hole pair (GP) recombination accounts for the DF of 2a in 77 K glassy solution (MeOH/EtOH = 4 : 1). Both 4a and 4b contain a BODIPY moiety at the acetylide ligand and display only 1IL(ππ*) fluorescence with negligible phosphorescence being observed. Computational analyses attributed this observation to the lack of low-lying triplet excited states that could have effective SOC with the S1 excited state.
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Affiliation(s)
- Kaai Tung Chan
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China . ;
| | - Glenna So Ming Tong
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China . ;
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China . ;
| | - Chen Yang
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China . ;
| | - Lili Du
- Department of Chemistry , The University of Hong Kong , Hong Kong , China
| | - David Lee Phillips
- Department of Chemistry , The University of Hong Kong , Hong Kong , China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China . ; .,Department of Chemistry , HKU Shenzhen Institute of Research and Innovation , Shenzhen 518053 , China
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27
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Vanicek S, Kopacka H, Wurst K, Vergeiner S, Kankowski S, Schur J, Bildstein B, Ott I. Cobaltoceniumethynyl gold(I) as an unusual heterodinuclear bioorganometallic fragment to study the biological properties of alkynyl gold complexes. Dalton Trans 2016; 45:1345-8. [PMID: 26732365 DOI: 10.1039/c5dt04796j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cobaltoceniumethynyl gold(i) complex with a triphenylphosphane ligand triggered efficient cytotoxic effects in cancer cells in contrast to a derivative with two cobaltocenium moieties. The complex effectively inhibited the enzyme thioredoxin reductase (TrxR) suggesting this enzyme as a possible biological target. The cellular uptake of both metal fragments of the active complex was studied by atomic absorption spectroscopy and indicated a high biological stability of the complex.
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Affiliation(s)
- S Vanicek
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - H Kopacka
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - K Wurst
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - S Vergeiner
- Institute of Organic Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria
| | - S Kankowski
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
| | - J Schur
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
| | - B Bildstein
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - I Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
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28
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Andermark V, Göke K, Kokoschka M, Abu el Maaty MA, Lum CT, Zou T, Sun RWY, Aguiló E, Oehninger L, Rodríguez L, Bunjes H, Wölfl S, Che CM, Ott I. Alkynyl gold(I) phosphane complexes: Evaluation of structure–activity-relationships for the phosphane ligands, effects on key signaling proteins and preliminary in-vivo studies with a nanoformulated complex. J Inorg Biochem 2016; 160:140-8. [DOI: 10.1016/j.jinorgbio.2015.12.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/08/2015] [Accepted: 12/28/2015] [Indexed: 12/22/2022]
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29
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Khalil G, Orvain C, Fang L, Barloy L, Chaumont A, Gaiddon C, Henry M, Kyritsakas N, Mobian P. Monomeric Ti(iv)-based complexes incorporating luminescent nitrogen ligands: synthesis, structural characterization, emission spectroscopy and cytotoxic activities. Dalton Trans 2016; 45:19072-19085. [DOI: 10.1039/c6dt03477b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel photoluminescent 2,2′-bipyrimidine ligands and their titanium(iv) complexes are cytotoxic.
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Affiliation(s)
- Georges Khalil
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Christophe Orvain
- Laboratoire des “Mécanismes moléculaires de la réponse au stress et pathologies”
- Strasbourg
- France
- Département Cancer
- Fédération de Médecine Translationnelle de Strasbourg
| | - Lu Fang
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Laurent Barloy
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Alain Chaumont
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Christian Gaiddon
- Laboratoire des “Mécanismes moléculaires de la réponse au stress et pathologies”
- Strasbourg
- France
- Département Cancer
- Fédération de Médecine Translationnelle de Strasbourg
| | - Marc Henry
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Nathalie Kyritsakas
- Laboratoire de Tectonique Moléculaire
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Pierre Mobian
- Laboratoire de Chimie Moléculaire de l'Etat Solide
- UMR 7140 UDS-CNRS
- Université de Strasbourg
- F-67000 Strasbourg
- France
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Bertrand B, Doulain PE, Goze C, Bodio E. Development of trackable metal-based drugs: new generation of therapeutic agents. Dalton Trans 2016; 45:13005-11. [DOI: 10.1039/c5dt04275e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Today, it is not sufficient to conceive an efficient drug, its mechanism of action have to be understood. To tackle this issue, trackable therapeutic agents are an interesting solution.
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Affiliation(s)
- Benoît Bertrand
- Institut de Chimie Moléculaire
- UMR 6302 CNRS Université de Bourgogne Franche-Comté
- 21078 Dijon
- France
- School of Chemistry
| | - Pierre-Emmanuel Doulain
- Institut de Chimie Moléculaire
- UMR 6302 CNRS Université de Bourgogne Franche-Comté
- 21078 Dijon
- France
| | - Christine Goze
- Institut de Chimie Moléculaire
- UMR 6302 CNRS Université de Bourgogne Franche-Comté
- 21078 Dijon
- France
| | - Ewen Bodio
- Institut de Chimie Moléculaire
- UMR 6302 CNRS Université de Bourgogne Franche-Comté
- 21078 Dijon
- France
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