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Pilon A, Avecilla F, Rácz B, Gátszegi GT, Spengler G, Robalo MP, Enyedy ÉA, Garcia MH, Valente A. Iron(II)-cyclopentadienyl compounds are cytotoxic against colon adenocarcinoma cell lines: Ethylenebis(diphenylphosphane) vs. triphenylphosphane. J Inorg Biochem 2023; 249:112386. [PMID: 37827090 DOI: 10.1016/j.jinorgbio.2023.112386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/13/2023] [Accepted: 09/23/2023] [Indexed: 10/14/2023]
Abstract
Structure-activity studies aiming to understand the role of each coligand in the formulation of new metallodrugs is an important subject. In that frame, six new compounds with general formula [Fe(η5-C5H5)(dppe)(L)][CF3SO3] with L = benzonitriles (1-4) or carbon monoxide (5) and compound [Fe(η5-C5H5)(CO)(PPh3)2][CF3SO3] (6) were synthesized and compared with three other previously reported compounds [Fe(η5-C5H5)(CO)(L)(PPh3)][CF3SO3]. We were particularly interested in assessing the effect of dppe vs. (PPh3 + CO) for this set of compounds. For that, all compounds were tested against two human colon adenocarcinoma cell lines, Colo205 and the refractile Colo320 (expressing ABCB1, an efflux pump causing multidrug resistance), showing IC50 values in the micromolar range. The presence of dppe in the compound's coordination sphere over (PPh3 + CO) allows for more redox stable compounds showing higher cytotoxicity and selectivity, with improved cytotoxicity towards resistant cells that is not related to the inhibition of ABCB1. Further studies with GSH and H2O2 for selected compounds indicated that their antioxidant ability is not probably the main responsible for their cytotoxicity.
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Affiliation(s)
- Adhan Pilon
- Centro de Química Estrutural, Institute of Molecular Sciences and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Fernando Avecilla
- Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química y Biología (CICA), Departamento de Química, Facultade de Ciencias, Campus de A Coruña, 15071 A Coruña, Spain
| | - Bálint Rácz
- Department of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
| | - Gerda T Gátszegi
- Department of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary; MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Gabriella Spengler
- Department of Medical Microbiology, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary
| | - M Paula Robalo
- Centro de Química Estrutural, Institute of Molecular Sciences, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Departamento de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Av. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
| | - Éva A Enyedy
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - M Helena Garcia
- Centro de Química Estrutural, Institute of Molecular Sciences and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Andreia Valente
- Centro de Química Estrutural, Institute of Molecular Sciences and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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Silva D, Sousa AC, Robalo MP, Martins LO. A wide array of lignin-related phenolics are oxidized by an evolved bacterial dye-decolourising peroxidase. N Biotechnol 2023; 77:176-184. [PMID: 36563877 DOI: 10.1016/j.nbt.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Lignin is the second most abundant natural polymer next to cellulose and by far the largest renewable source of aromatic compounds on the planet. Dye-decolourising peroxidases (DyPs) are biocatalysts with immense potential in lignocellulose biorefineries to valorize emerging lignin building blocks for environmentally friendly chemicals and materials. This work investigates the catalytic potential of the engineered PpDyP variant 6E10 for the oxidation of 24 syringyl, guaiacyl and hydroxybenzene lignin-phenolic derivatives. Variant 6E10 exhibited up to 100-fold higher oxidation rates at pH 8 for all the tested phenolic substrates compared to the wild-type enzyme and other acidic DyPs described in the literature. The main products of reactions were dimeric isomers with molecular weights of (2 × MWsubstrate - 2 H). Their structure depends on the substitution pattern of the aromatic ring of substrates, i.e., of the coupling possibilities of the primarily formed radicals upon enzymatic oxidation. Among the dimers identified were syringaresinol, divanillin and diapocynin, important sources of structural scaffolds exploitable in medicinal chemistry, food additives and polymers.
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Affiliation(s)
- Diogo Silva
- Institute of Chemical and Biological Technology António Xavier, NOVA New University of Lisbon, Av da República, 2780-157 Oeiras, Portugal
| | - Ana Catarina Sousa
- Department of Chemical Engineering, Instituto Superior de Engenharia de Lisboa, Polytechnic Institute of Lisbon, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal; Centre for Structural Chemistry, Institute of Molecular Sciences, Complexo I; Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - M Paula Robalo
- Department of Chemical Engineering, Instituto Superior de Engenharia de Lisboa, Polytechnic Institute of Lisbon, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal; Centre for Structural Chemistry, Institute of Molecular Sciences, Complexo I; Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Lígia O Martins
- Institute of Chemical and Biological Technology António Xavier, NOVA New University of Lisbon, Av da República, 2780-157 Oeiras, Portugal.
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Sousa AC, Santos I, Piedade MFMM, Martins LO, Robalo MP. Corrigendum: Synthesis of Substituted 4‐Arylamino‐1,2‐naphthoquinones in One‐Pot Reactions Using CotA‐Laccase as Biocatalyst. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sousa AC, Martins LO, Robalo MP. Laccases: Versatile Biocatalysts for the Synthesis of Heterocyclic Cores. Molecules 2021; 26:3719. [PMID: 34207073 PMCID: PMC8234338 DOI: 10.3390/molecules26123719] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 12/14/2022] Open
Abstract
Laccases are multicopper oxidases that have shown a great potential in various biotechnological and green chemistry processes mainly due to their high relative non-specific oxidation of phenols, arylamines and some inorganic metals, and their high redox potentials that can span from 500 to 800 mV vs. SHE. Other advantages of laccases include the use of readily available oxygen as a second substrate, the formation of water as a side-product and no requirement for cofactors. Importantly, addition of low-molecular-weight redox mediators that act as electron shuttles, promoting the oxidation of complex bulky substrates and/or of higher redox potential than the enzymes themselves, can further expand their substrate scope, in the so-called laccase-mediated systems (LMS). Laccase bioprocesses can be designed for efficiency at both acidic and basic conditions since it is known that fungal and bacterial laccases exhibit distinct optimal pH values for the similar phenolic and aromatic amines. This review covers studies on the synthesis of five- and six-membered ring heterocyclic cores, such as benzimidazoles, benzofurans, benzothiazoles, quinazoline and quinazolinone, phenazine, phenoxazine, phenoxazinone and phenothiazine derivatives. The enzymes used and the reaction protocols are briefly outlined, and the mechanistic pathways described.
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Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Fernandes A, Pinto B, Bonardo L, Royo B, Robalo MP, Martins LO. Wasteful Azo Dyes as a Source of Biologically Active Building Blocks. Front Bioeng Biotechnol 2021; 9:672436. [PMID: 34211965 PMCID: PMC8239230 DOI: 10.3389/fbioe.2021.672436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/04/2021] [Indexed: 11/13/2022] Open
Abstract
In this work, an environment-friendly enzymatic strategy was developed for the valorisation of dye-containing wastewaters. We set up biocatalytic processes for the conversion of azo dyes representative of the main classes used in the textile industry into valuable aromatic compounds: aromatic amines, phenoxazinones, phenazines, and naphthoquinones. First, purified preparations of PpAzoR azoreductase efficiently reduced mordant, acid, reactive, and direct azo dyes into aromatic amines, and CotA-laccase oxidised these compounds into phenazines, phenoxazinones, and naphthoquinones. Second, whole cells containing the overproduced enzymes were utilised in the two-step enzymatic conversion of the model mordant black 9 dye into sodium 2-amino-3-oxo-3H-phenoxazine-8-sulphonate, allowing to overcome the drawbacks associated with the use of expensive purified enzymes, co-factors, or exquisite reaction conditions. Third, cells immobilised in sodium alginate allowed recycling the biocatalysts and achieving very good to excellent final phenoxazine product yields (up to 80%) in water and with less impurities in the final reaction mixtures. Finally, one-pot systems using recycled immobilised cells co-producing both enzymes resulted in the highest phenoxazinone yields (90%) through the sequential use of static and stirring conditions, controlling the oxygenation of reaction mixtures and the successive activity of azoreductase (anaerobic) and laccase (aerobic).
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Affiliation(s)
- Ana Fernandes
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Bruna Pinto
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal.,Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Lisbon, Portugal
| | - Lorenzo Bonardo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - M Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa (ISEL), Instituto Politécnico de Lisboa, Lisbon, Portugal.,Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Lígia O Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
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Miranda AS, Marcos PM, Ascenso JR, Robalo MP, Bonifácio VDB, Berberan-Santos MN, Hickey N, Geremia S. Conventional vs. Microwave- or Mechanically-Assisted Synthesis of Dihomooxacalix[4]arene Phthalimides: NMR, X-ray and Photophysical Analysis. Molecules 2021; 26:molecules26061503. [PMID: 33801929 PMCID: PMC7998390 DOI: 10.3390/molecules26061503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 11/16/2022] Open
Abstract
Direct O-alkylation of p-tert-butyldihomooxacalix[4]arene (1) with N-(bromopropyl)- or N-(bromoethyl)phthalimides and K2CO3 in acetonitrile was conducted under conventional heating (reflux) and using microwave irradiation and ball milling methodologies. The reactions afforded mono- and mainly distal di-substituted derivatives in the cone conformation, in a total of eight compounds. They were isolated by column chromatography, and their conformations and the substitution patterns were established by NMR spectroscopy (1H, 13C, COSY and NOESY experiments). The X-ray structures of four dihomooxacalix[4]arene phthalimide derivatives (2a, 3a, 3b and 5a) are reported, as well as their photophysical properties. The microwave (MW)-assisted alkylations drastically reduced the reaction times (from days to less than 45 min) and produced higher yields of both 1,3-di-substituted phthalimides (3a and 6a) with higher selectivity. Ball milling did not reveal to be a good method for this kind of reaction.
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Affiliation(s)
- Alexandre S. Miranda
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Edifício C8, 1749-016 Lisboa, Portugal;
- IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (V.D.B.B.); (M.N.B.-S.)
| | - Paula M. Marcos
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Edifício C8, 1749-016 Lisboa, Portugal;
- Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
- Correspondence:
| | - José R. Ascenso
- Centro de Química Estrutural, Instituto Superior Técnico, Complexo I, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (J.R.A.); (M.P.R.)
| | - M. Paula Robalo
- Centro de Química Estrutural, Instituto Superior Técnico, Complexo I, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (J.R.A.); (M.P.R.)
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
| | - Vasco D. B. Bonifácio
- IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (V.D.B.B.); (M.N.B.-S.)
| | - Mário N. Berberan-Santos
- IBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (V.D.B.B.); (M.N.B.-S.)
| | - Neal Hickey
- Centre of Excellence in Biocrystallography, Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127 Trieste, Italy; (N.H.); (S.G.)
| | - Silvano Geremia
- Centre of Excellence in Biocrystallography, Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127 Trieste, Italy; (N.H.); (S.G.)
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Lenis-Rojas OA, Robalo MP, Tomaz AI, Fernandes AR, Roma-Rodrigues C, Teixeira RG, Marques F, Folgueira M, Yáñez J, Gonzalez AA, Salamini-Montemurri M, Pech-Puch D, Vázquez-García D, Torres ML, Fernández A, Fernández JJ. Half-Sandwich Ru( p-cymene) Compounds with Diphosphanes: In Vitro and In Vivo Evaluation As Potential Anticancer Metallodrugs. Inorg Chem 2021; 60:2914-2930. [PMID: 33570919 DOI: 10.1021/acs.inorgchem.0c02768] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Ruthenium(II) complexes are currently considered attractive alternatives to the widely used platinum-based drugs. We present herein the synthesis and characterization of half-sandwich ruthenium compounds formulated as [Ru(p-cymene)(L)Cl][CF3SO3] (L = 1,1-bis(methylenediphenylphosphano)ethylene, 1; L = 1,1-bis(diphenylphosphano)ethylene, 2), which were characterized by elemental analysis, mass spectrometry, 1H and 31P{1H} NMR, UV-vis and IR spectroscopy, conductivity measurements and cyclic voltammetry. The molecular structures for both complexes were determined by single-crystal X-ray diffraction. Their cytotoxic activity was evaluated using the MTT assay against human tumor cells, namely ovarian (A2780) and breast (MCF7 and MDA-MB-231). Both complexes were active against breast adenocarcinoma cells, with complex 1 exhibiting a quite remarkable cytotoxicity in the submicromolar range. Interestingly, at concentrations equivalent to the IC50 values in the MCF7 cancer cells, complexes 1 and 2 presented lower cytotoxicity in normal human primary fibroblasts. The antiproliferative effects of 1 and 2 in MCF7 cells might be associated with the induction of reactive oxygen species (ROS), leading to a combined cell death mechanism via apoptosis and autophagy. Despite the fact that in vitro a partial intercalation between complexes and DNA was observed, no MCF7 cell cycle delay or arrest was observed, indicating that DNA might not be a direct target. Complexes 1 and 2 both exhibited a moderate to strong interaction with human serum albumin, suggesting that protein targets may be involved in their mode of action. Their acute toxicity was evaluated in the zebrafish model. Complex 1 (the most toxic of the two) exhibited a lethal toxicity LC50 value about 1 order of magnitude higher than any IC50 concentrations found for the cancer cell models used, highlighting its therapeutic relevance as a drug candidate in cancer chemotherapy.
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Affiliation(s)
- Oscar A Lenis-Rojas
- Instituto de Tecnologia Química e Biológica António Xavier, ITQB, Av. da República, EAN, 2780-157 Oeiras, Portugal
| | - M Paula Robalo
- Área Departamental de Engenharia Química, ISEL-Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal.,Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ana Isabel Tomaz
- Centro de Química Estrutural and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1049-016 Lisboa, Portugal
| | - Alexandra R Fernandes
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Catarina Roma-Rodrigues
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Ricardo G Teixeira
- Centro de Química Estrutural and Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1049-016 Lisboa, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologías Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, E.N. 10 (km 139.7), 2695-066 Bobadela LRS, Portugal
| | - Mónica Folgueira
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain.,Department of Cell and Developmental Biology, University College London, Gower Street, London WC1 6BT, U.K
| | - Julián Yáñez
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain
| | - Anabel Alba Gonzalez
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain
| | - Martín Salamini-Montemurri
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain
| | - Dawrin Pech-Puch
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain.,Departamento de Biología Marina, Universidad Autónoma de Yucatán, Km. 15.5, carretera Mérida-Xmatkuil, A.P. 4-116 Itzimná, C.P. 97100, Mérida, Yucatán, Mexico
| | - Digna Vázquez-García
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Margarita López Torres
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Alberto Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Jesús J Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
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Lopes R, Raya‐Barón Á, Robalo MP, Vinagreiro C, Barroso S, Romão MJ, Fernández I, Pereira MM, Royo B. Front Cover: Donor Functionalized Iron(II) N‐Heterocyclic Carbene Complexes in Transfer Hydrogenation Reactions (Eur. J. Inorg. Chem. 1/2021). Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202001102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rita Lopes
- Instituto de Tecnologia Química e Biológica António Xavier ITQB NOVA Universidade Nova de Lisboa Av. da República Oeiras 2780-157 Portugal
| | - Álvaro Raya‐Barón
- Department of Chemistry and Physics Research Centre CIAIMBITAL Universidad de Almeria Ctra. De Sacramento s/n Almeria 04120 Spain
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, ISEL Instituto Politécnico de Lisboa Av. Conselheiro Emídio Navarro, 1 Lisboa 1959-007 Portugal
- CQE-IST Universidade de Lisboa Av. Rovisco Pais Lisboa 1049-001 Portugal
| | - Carolina Vinagreiro
- Universidade de Coimbra CQC, Departamento de Química Rua Larga Coimbra 3004-535 Portugal
| | - Sónia Barroso
- UCIBIO, Unidade de Ciência Biomoleculares Aplicadas Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Caparica 2829-516 Portugal
- Current address: MARE-Centro de Ciências do Mar e do Ambiente, Politécnico de Leiria Peniche 2520–641 Portugal
| | - Maria J. Romão
- UCIBIO, Unidade de Ciência Biomoleculares Aplicadas Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa Caparica 2829-516 Portugal
| | - Ignacio Fernández
- Department of Chemistry and Physics Research Centre CIAIMBITAL Universidad de Almeria Ctra. De Sacramento s/n Almeria 04120 Spain
| | - Mariette M. Pereira
- Universidade de Coimbra CQC, Departamento de Química Rua Larga Coimbra 3004-535 Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier ITQB NOVA Universidade Nova de Lisboa Av. da República Oeiras 2780-157 Portugal
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9
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Lopes R, Raya‐Barón Á, Robalo MP, Vinagreiro C, Barroso S, Romão MJ, Fernández I, Pereira MM, Royo B. Donor Functionalized Iron(II) N‐Heterocyclic Carbene Complexes in Transfer Hydrogenation Reactions. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Rita Lopes
- Instituto de Tecnologia Química e Biológica António Xavier ITQB NOVA Universidade Nova de Lisboa Av. da República 2780‐157 Oeiras Portugal
| | - Álvaro Raya‐Barón
- Department of Chemistry and Physics Research Centre CIAIMBITAL Universidad de Almeria Ctra. De Sacramento s/n 04120 Almeria Spain
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, ISEL Instituto Politécnico de Lisboa Av. Conselheiro Emídio Navarro, 1 1959‐007 Lisboa Portugal
- CQE‐IST Universidade de Lisboa Av. Rovisco Pais 1049‐001 Lisboa Portugal
| | - Carolina Vinagreiro
- CQC, Departamento de Química Universidade de Coimbra Rua Larga 3004‐535 Coimbra Portugal
| | - Sónia Barroso
- UCIBIO, Unidade de Ciência Biomoleculares Aplicadas Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa 2829‐516 Caparica Portugal
| | - Maria J. Romão
- UCIBIO, Unidade de Ciência Biomoleculares Aplicadas Departamento de Química, Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa 2829‐516 Caparica Portugal
| | - Ignacio Fernández
- Department of Chemistry and Physics Research Centre CIAIMBITAL Universidad de Almeria Ctra. De Sacramento s/n 04120 Almeria Spain
| | - Mariette M. Pereira
- CQC, Departamento de Química Universidade de Coimbra Rua Larga 3004‐535 Coimbra Portugal
| | - Beatriz Royo
- Instituto de Tecnologia Química e Biológica António Xavier ITQB NOVA Universidade Nova de Lisboa Av. da República 2780‐157 Oeiras Portugal
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10
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Sousa AC, Santos I, Piedade MFMM, Martins LO, Robalo MP. Synthesis of Substituted 4‐Arylamino‐1,2‐naphthoquinones in One‐Pot Reactions Using CotA‐Laccase as Biocatalyst. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Iolanda Santos
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - M. F. M. M. Piedade
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
- Departamento de Química e Bioquímica, Faculdade de CiênciasUniversidade de Lisboa Campo Grande 1649-016 Lisboa Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e BiológicaUniversidade Nova de Lisboa Av. da República 2780-150 Oeiras Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
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11
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Sousa AC, Santos I, Piedade MFMM, Martins LO, Robalo MP. Front Cover Picture: Synthesis of Substituted 4‐Arylamino‐1,2‐naphthoquinones in One‐Pot Reactions Using CotA‐Laccase as Biocatalyst (Adv. Synth. Catal. 16/2020). Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Iolanda Santos
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - M. F. M. M. Piedade
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
- Departamento de Química e Bioquímica, Faculdade de CiênciasUniversidade de Lisboa Campo Grande 1649-016 Lisboa Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e BiológicaUniversidade Nova de Lisboa Av. da República 2780-150 Oeiras Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de LisboaInstituto Politécnico de Lisboa Rua Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1049-001 Lisboa Portugal
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12
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Coelho JP, Filipe RM, Paula Robalo M, Boyadzhieva S, Cholakov GS, Stateva RP. Supercritical CO2 extraction of spent coffee grounds. Influence of co-solvents and characterization of the extracts. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104825] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Franco Machado J, Machuqueiro M, Marques F, Robalo MP, Piedade MFM, Garcia MH, Correia JDG, Morais TS. Novel "ruthenium cyclopentadienyl"-peptide conjugate complexes against human FGFR(+) breast cancer. Dalton Trans 2020; 49:5974-5987. [PMID: 32314752 DOI: 10.1039/d0dt00955e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this work we explored the possibility of improving the selectivity of a cytotoxic Ru complex [RuCp(PPh3)(2,2'-bipy)][CF3SO3] (where Cp = η5-cyclopentadienyl) TM34 towards FGFR(+) breast cancer cells. Molecular dynamics (MD) simulations of TM34 in a phosphatidylcholine membrane model pinpointed the cyclopentadienyl group as a favorable derivatization position for the peptide conjugation approach. Three new Ru(ii) complexes presenting a functionalized η5-cyclopentadienyl were synthesized, namely [Ru(η5-C5H4COOH)(2,2'-bipy)(PPh3)][CF3SO3] (TM281) and its precursors, [Ru(η5-C5H4COOCH2CH3)(η2-2,2'-bipy)(PPh3)][CF3SO3] (3) and [Ru(η5-C5H4COOCH2CH3)(PPh3)2Cl] (2). Complex TM281 was prepared by the hydrolysis of the ethyl ester group appended to the η5-cyclopentadienyl ligand of complex 3 with K2CO3 in water/acetonitrile, followed by mild protonation using an ion exchange resin. The newly synthesized complexes were fully characterized by NMR, FTIR and UV-vis spectroscopic techniques. Also, electrochemical studies were carried out by means of cyclic voltammetry in order to evaluate the stability of the compounds. Single crystal X-ray diffraction studies were carried out for compounds 3 and TM281 which crystallized in the monoclinic system, space group P21/n. The unprecedented synthesis and characterization of three half-sandwich ruthenium(ii)-cyclopentadienyl peptide conjugates and their preliminary biological evaluation against human FGFR(+) and FGFR(-) breast cancer cells are also reported.
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Affiliation(s)
- João Franco Machado
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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14
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Teixeira RG, Marques F, Robalo MP, Fontrodona X, Garcia MH, Geninatti Crich S, Viñas C, Valente A. Ruthenium carboranyl complexes with 2,2′-bipyridine derivatives for potential bimodal therapy application. RSC Adv 2020; 10:16266-16276. [PMID: 35498822 PMCID: PMC9053089 DOI: 10.1039/d0ra01522a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/06/2020] [Indexed: 11/21/2022] Open
Abstract
The substituents at the bipyridine lead to different cell uptake and stability.
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Affiliation(s)
- Ricardo G. Teixeira
- Centro de Química Estrutural
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares
- Instituto Superior Técnico
- Universidade de Lisboa
- 2695-006 Bobadela LRS
- Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química
- Instituto Superior de Engenharia de Lisboa
- Instituto Politécnico de Lisboa
- 1959-007 Lisboa
- Portugal
| | - Xavier Fontrodona
- Departament de Química and Serveis Tècnics de Recerca
- Universitat de Girona
- 17071 Girona
- Spain
| | - M. Helena Garcia
- Centro de Química Estrutural
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
| | - Simonetta Geninatti Crich
- Dipartimento di Biotecnologie Molecolari e Scienze per la Salute
- Università di Torino
- 10126 Torino
- Italy
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- 08193 Bellaterra
- Spain
| | - Andreia Valente
- Centro de Química Estrutural
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
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15
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Bravo C, Robalo MP, Marques F, Fernandes AR, Sequeira DA, M. Piedade MF, Garcia MH, de Brito MJV, Morais TS. First heterobimetallic Cu(i)–dppf complexes designed for anticancer applications: synthesis, structural characterization and cytotoxicity. NEW J CHEM 2019. [DOI: 10.1039/c9nj02068c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
First heterobimetallic Cu(i)–dppf complexes with bidentate heteroaromatic ligands designed for anticancer applications.
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Affiliation(s)
- Catarina Bravo
- Centro de Química Estrutural
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- Departamento de Química e Bioquímica
| | - M. Paula Robalo
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Portugal
- Área Departamental de Engenharia Química
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares
- Departamento de Engenharia e Ciências Nucleares
- Instituto Superior Técnico
- Universidade de Lisboa
- Portugal
| | - Alexandra R. Fernandes
- UCBIO
- Departamento de Ciências da Vida
- Faculdade de Ciências e Tecnologia
- Universidade Nova de Lisboa
- Portugal
| | - Diogo A. Sequeira
- Centro de Química Estrutural
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- UCBIO
| | - M. Fátima M. Piedade
- Departamento de Química e Bioquímica
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- Centro de Química Estrutural
| | - M. Helena Garcia
- Centro de Química Estrutural
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- Departamento de Química e Bioquímica
| | - Maria J. Villa de Brito
- Centro de Química Estrutural
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- Departamento de Química e Bioquímica
| | - Tânia S. Morais
- Centro de Química Estrutural
- Faculdade de Ciências
- Universidade de Lisboa
- Portugal
- Departamento de Química e Bioquímica
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16
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Sousa AC, Baptista SR, Martins LO, Robalo MP. Synthesis of Azobenzene Dyes Mediated by CotA Laccase. Chem Asian J 2018; 14:187-193. [PMID: 30447059 DOI: 10.1002/asia.201801450] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/14/2018] [Indexed: 11/06/2022]
Abstract
An eco-friendly protocol for the synthesis of azobenzene dyes by oxidative coupling of primary aromatic amines is reported. As efficient biocatalytic systems, CotA laccase and CotA laccase/ABTS (2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)) enable the oxidation of various substituted anilines, in aqueous medium, ambient atmosphere and under mild reaction conditions of pH and temperature. A series of azobenzene dyes were prepared in good to excellent yields in an one-pot reaction. A mechanistic proposal for the formation of the azo derivatives is presented. Our strategy offers an alternative approach for the direct synthesis of azobenzene dyes, avoiding the harsh conditions generally required for most of the traditional synthetic methods.
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Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007, Lisboa, Portugal.,Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Sara R Baptista
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007, Lisboa, Portugal
| | - Lígia O Martins
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-150, Oeiras, Portugal
| | - M Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007, Lisboa, Portugal.,Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
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17
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Coelho JP, Filipe RM, Robalo MP, Stateva RP. Recovering value from organic waste materials: Supercritical fluid extraction of oil from industrial grape seeds. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.12.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Lenis-Rojas OA, Robalo MP, Tomaz AI, Carvalho A, Fernandes AR, Marques F, Folgueira M, Yáñez J, Vázquez-García D, López Torres M, Fernández A, Fernández JJ. RuII(p-cymene) Compounds as Effective and Selective Anticancer Candidates with No Toxicity in Vivo. Inorg Chem 2018; 57:13150-13166. [DOI: 10.1021/acs.inorgchem.8b01270] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Oscar A. Lenis-Rojas
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, ISEL-Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
- Centro de Química Estrutural, Complexo 1, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ana Isabel Tomaz
- Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Andreia Carvalho
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Alexandra R. Fernandes
- UCIBIO, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologías Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, E.N. 10 (km 139.7), 2695-066 Bobadela LRS, Portugal
| | - Mónica Folgueira
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1 6BT, U.K
| | - Julián Yáñez
- Neurover Group, Centro de Investigacións Científicas Avanzadas (CICA) and Department of Biology, Universidade da Coruña, 15008 A Coruña, Spain
| | - Digna Vázquez-García
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Margarita López Torres
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Alberto Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
| | - Jesús J. Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15008 A Coruña, Spain
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19
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Côrte-Real L, Teixeira RG, Gírio P, Comsa E, Moreno A, Nasr R, Baubichon-Cortay H, Avecilla F, Marques F, Robalo MP, Mendes P, Ramalho JPP, Garcia MH, Falson P, Valente A. Methyl-cyclopentadienyl Ruthenium Compounds with 2,2′-Bipyridine Derivatives Display Strong Anticancer Activity and Multidrug Resistance Potential. Inorg Chem 2018; 57:4629-4639. [DOI: 10.1021/acs.inorgchem.8b00358] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leonor Côrte-Real
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Ricardo G. Teixeira
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Patrícia Gírio
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Elisabeta Comsa
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Alexis Moreno
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Rachad Nasr
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Hélène Baubichon-Cortay
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Fernando Avecilla
- Grupo Xenomar, Centro de Investigacións Científicas Avanzadas (CICA), Departamento de Química, Facultade de Ciencias, Universidade da Coruña, Campus de A Coruña, 15071 A Coruña, Spain
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico (C2TN/IST), Universidade de Lisboa, Estrada Nacional 10 (km 139.7), 2695-066 Bobadela LRS, Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, Rua Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Paulo Mendes
- Departamento de Química and Centro de Química de Évora, Escola de Ciências e Tecnologia, Universidade de Évora, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal
| | - João P. Prates Ramalho
- Departamento de Química and Centro de Química de Évora, Escola de Ciências e Tecnologia, Universidade de Évora, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal
| | - M. Helena Garcia
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Pierre Falson
- Drug Resistance and Membrane Proteins Team, Molecular Biology and Structural Biochemistry Laboratory, UMR 5086 CNRS-UCBL1, IBCP 7 Passage du Vercors, 69 367 Lyon Cedex 07, France
| | - Andreia Valente
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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20
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Teixeira RG, Brás AR, Côrte-Real L, Tatikonda R, Sanches A, Robalo MP, Avecilla F, Moreira T, Garcia MH, Haukka M, Preto A, Valente A. Novel ruthenium methylcyclopentadienyl complex bearing a bipyridine perfluorinated ligand shows strong activity towards colorectal cancer cells. Eur J Med Chem 2018; 143:503-514. [DOI: 10.1016/j.ejmech.2017.11.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/06/2017] [Accepted: 11/21/2017] [Indexed: 01/04/2023]
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21
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Sousa AC, Conceição Oliveira M, Martins LO, Robalo MP. A Sustainable Synthesis of Asymmetric Phenazines and Phenoxazinones Mediated by CotA-Laccase. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701228] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, ISEL - Instituto Superior de Engenharia de Lisboa; Instituto Politécnico de Lisboa; R. Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - M. Conceição Oliveira
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e Biológica António Xavier; Universidade Nova de Lisboa; Av da República 2780-157 Oeiras Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, ISEL - Instituto Superior de Engenharia de Lisboa; Instituto Politécnico de Lisboa; R. Conselheiro Emídio Navarro, 1 1959-007 Lisboa Portugal
- Centro de Química Estrutural, Complexo I; Instituto Superior Técnico; Universidade de Lisboa; Av. Rovisco Pais 1049-001 Lisboa Portugal
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22
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Florindo PR, Costa PJ, Piedade MFM, Robalo MP. pH-Switchability and Second-Order Nonlinear Optical Properties of Monocyclopentadienylruthenium(II)/iron(II) Tetrazoles/Tetrazolates: Synthesis, Characterization, and Time-Dependent Density Functional Theory Calculations. Inorg Chem 2017; 56:6849-6863. [PMID: 28569504 DOI: 10.1021/acs.inorgchem.7b00138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tetrazole/tetrazolate monocyclopentadienyliron(II) and ruthenium(II) compounds of general formulas [(η5-C5H5)M(dppe)(N4(H)CC6H4NO2)][PF6]/[(η5-C5H5)M(dppe)(N4CC6H4NO2)] were investigated for their pH-switching second-order nonlinear optical (SONLO) properties. Compounds [(η5-C5H5)M(dppe)(N4CC6H4NO2)] (M = Fe, Ru) and compound [(η5-C5H5)Ru(dppe)(N4(H)CC6H4NO2)][PF6] were fully characterized by (1H-, 13C-, 31P-) NMR, cyclic voltammetry, and elemental analysis, and compounds [(η5-C5H5)Fe(dppe)(N4CC6H4NO2)] and [(η5-C5H5)Ru(dppe)(N4(H)CC6H4NO2)][PF6] were further characterized by single-crystal X-ray diffraction; the synthesis of [(η5-C5H5)Fe(dppe)(N4(H)CC6H4NO2)][PF6] was unsuccessful. Time-dependent density functional theory calculations were performed using PBE0 and CAM-B3LYP functionals to evaluate the first hyperpolarizability (βtot) of the tetrazole/tetrazolate complexes and for a detailed analysis of the experimental data. Both functionals predict (i) high first hyperpolarizabilities for the tetrazolate complexes [(η5-C5H5)M(dppe)(N4CC6H4NO2)], with βtot[Ru] ≈ 1.2βtot[Fe], and (ii) a 3-fold reduction in βtot[Ru] upon protonation, in complex [(η5-C5H5)Ru(dppe)(N4(H)CC6H4NO2)]+, forecasting [(η5-C5H5)Ru(dppe)(N4CC6H4NO2)]/[(η5-C5H5)Ru(dppe)(N4(H)CC6H4NO2)]+ complexes as on/off, pH-switchable SONLO forms.
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Affiliation(s)
- Pedro R Florindo
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Av. Rovisco Pais, 1049-001 Lisboa, Portugal.,iMed.ULisboa, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | | | - M F M Piedade
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - M Paula Robalo
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Av. Rovisco Pais, 1049-001 Lisboa, Portugal.,Área Departamental de Engenharia Química, ISEL - Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa , Rua Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
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Silva TJL, Mendes PJ, Santos AM, Garcia MH, Robalo MP, Ramalho JPP, Carvalho AJP, Büchert M, Wittenburg C, Heck J. Mono(η5-cyclopentadienyl)metal(II) Complexes with Thienyl Acetylide Chromophores: Synthesis, Electrochemical Studies, and First Hyperpolarizabilities. Organometallics 2014. [DOI: 10.1021/om4001204] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Tiago J. L. Silva
- Centro de Ciências Moleculares e Materiais,
Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo
Grande, 1749-016 Lisboa, Portugal
| | - Paulo J. Mendes
- Centro de Quı́mica de Évora, Departamento
de Quı́mica, Escola de Ciências
e Tecnologia, Universidade de Évora, Rua Romão Ramalho 59, 7002-554 Évora, Portugal
| | - Ana M. Santos
- Centro de Ciências Moleculares e Materiais,
Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo
Grande, 1749-016 Lisboa, Portugal
| | - M. Helena Garcia
- Centro de Ciências Moleculares e Materiais,
Faculdade de Ciências, Universidade de Lisboa, Ed. C8, Campo
Grande, 1749-016 Lisboa, Portugal
| | - M. Paula Robalo
- Centro de Quı́mica Estrutural,
Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Área Departamental de Engenharia Quı́mica, Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emídio Navarro,
1, 1959-007 Lisboa, Portugal
| | - J. P. Prates Ramalho
- Centro de Quı́mica de Évora, Departamento
de Quı́mica, Escola de Ciências
e Tecnologia, Universidade de Évora, Rua Romão Ramalho 59, 7002-554 Évora, Portugal
| | - A. J. Palace Carvalho
- Centro de Quı́mica de Évora, Departamento
de Quı́mica, Escola de Ciências
e Tecnologia, Universidade de Évora, Rua Romão Ramalho 59, 7002-554 Évora, Portugal
| | - Marina Büchert
- Institut für
Anorganische und Angewandte
Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg
| | - Christian Wittenburg
- Institut für
Anorganische und Angewandte
Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg
| | - Jürgen Heck
- Institut für
Anorganische und Angewandte
Chemie, Universität Hamburg, Martin-Luther-King-Platz 6, D-20146 Hamburg
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Quintal S, Morais TS, Matos CP, Paula Robalo M, Piedade MFM, Villa de Brito MJ, Helena Garcia M, Marques M, Maia C, Campino L, Madureira J. Synthesis, structural characterization and leishmanicidal activity evaluation of ferrocenyl N-heterocyclic compounds. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.07.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Morais TS, Santos FC, Jorge TF, Côrte-Real L, Madeira PJA, Marques F, Robalo MP, Matos A, Santos I, Garcia MH. New water-soluble ruthenium(II) cytotoxic complex: biological activity and cellular distribution. J Inorg Biochem 2013; 130:1-14. [PMID: 24145065 DOI: 10.1016/j.jinorgbio.2013.09.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/25/2013] [Accepted: 09/25/2013] [Indexed: 12/30/2022]
Abstract
A novel water soluble organometallic compound, [RuCp(mTPPMSNa)(2,2'-bipy)][CF3SO3] (TM85, where Cp=η(5)-cyclopentadienyl, mTPPMS=diphenylphosphane-benzene-3-sulfonate and 2,2'-bipy=2,2'-bipyridine) is presented herein. Studies of interactions with relevant proteins were performed to understand the behavior and mode of action of this complex in the biological environment. Electrochemical and fluorescence studies showed that TM85 strongly binds to albumin. Studies carried out to study the formation of TM85 which adducts with ubiquitin and cytochrome c were performed by electrospray ionization mass spectrometry (ESI-MS). Antitumor activity was evaluated against a variety of human cancer cell lines, namely A2780, A2780cisR, MCF7, MDAMB231, HT29, PC3 and V79 non-tumorigenic cells and compared with the reference drug cisplatin. TM85 cytotoxic effect was reduced in the presence of endocytosis modulators at low temperatures, suggesting an energy-dependent mechanism consistent with endocytosis. Ultrastructural analysis by transmission electron microscopy (TEM) revealed that TM85 targets the endomembranar system disrupting the Golgi and also affects the mitochondria. Disruption of plasma membrane observed by flow cytometry could lead to cellular damage and cell death. On the whole, the biological activity evaluated herein combined with the water solubility property suggests that complex TM85 could be a promising anticancer agent.
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Affiliation(s)
- Tânia S Morais
- Centro de Ciências Moleculares e Materiais, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Gonçalves AC, Morais TS, Robalo MP, Marques F, Avecilla F, Matos CP, Santos I, Tomaz AI, Garcia MH. Important cytotoxicity of novel iron(II) cyclopentadienyl complexes with imidazole based ligands. J Inorg Biochem 2013; 129:1-8. [PMID: 23994893 DOI: 10.1016/j.jinorgbio.2013.07.033] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 07/22/2013] [Accepted: 07/23/2013] [Indexed: 12/28/2022]
Abstract
Four new compounds of general formula [FeCp(dppe)L][CF3SO3] with L=imidazole substituted ligands, and dppe=ethylenebis(diphenylphosphane) have been synthesized and characterized with the aim to evaluate their anticancer properties. The new compounds were fully characterized by spectroscopic and electrochemical methods and the structure of [Fe(η(5)-C5H5)(dppe)(1-BuIm)] [CF3SO3] (1), [Fe(η(5)-C5H5)(dppe) (ImH)][CF3SO3] (3) and [Fe(η(5)-C5H5)(dppe)(1HmIm)][CF3SO3] (4) (where 1-BuIm=1-butylimidazole, and 1HmIm=N-hydroxymethylimidazole) was determined by X-ray diffraction studies. Apparently, these compounds are the first reported 'Fe(η(5)-C5H5)' half sandwich derivatives presenting high cytotoxic activity against a set a human tumor cell lines predicting their potential value as antitumor drugs.
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Affiliation(s)
- Ana Cristina Gonçalves
- Centro de Ciências Moleculares e Materiais, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Valente A, Royer S, Narendra M, Silva TJ, Mendes PJ, Robalo MP, Abreu M, Heck J, Garcia MH. Synthesis of new Fe(II) and Ru(II) η5-monocyclopentadienyl compounds showing significant second order NLO properties. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.02.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Silva TJL, Mendes PJ, Garcia MH, Robalo MP, Prates Ramalho JP, Palace Carvalho AJ, Büchert M, Wittenburg C, Heck J. Benzo[c]thiophene Chromophores Linked to Cationic Fe and Ru Derivatives for NLO Materials: Synthesis Characterization and Quadratic Hyperpolarizabilities. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Morais TS, Santos F, Côrte-Real L, Marques F, Robalo MP, Madeira PJA, Garcia MH. Biological activity and cellular uptake of [Ru(η5-C5H5)(PPh3)(Me2bpy)][CF3SO3] complex. J Inorg Biochem 2013; 122:8-17. [PMID: 23416310 DOI: 10.1016/j.jinorgbio.2013.01.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 01/08/2023]
Abstract
Anticancer activity of the new [Ru(η(5)-C5H5)(PPh3)(Me2bpy)][CF3SO3] (Me2bpy = 4,4'-dimethyl-2,2'-bipyridine) complex was evaluated in vitro against several human cancer cell lines, namely A2780, A2780CisR, HT29, MCF7, MDAMB231 and PC3. Remarkably, the IC50 values, placed in the nanomolar and sub-micromolar range, largely exceeded the activity of cisplatin. Binding to human serum albumin, either HSA (human serum albumin) or HSA(faf) (fatty acid-free human serum albumin) does not affect the complex activity. Fluorescence studies revealed that the present ruthenium complex strongly quench the intrinsic fluorescence of albumin. Cell death by the [Ru(η(5)-C5H5)(PPh3)(Me2bpy)][CF3SO3] complex was reduced in the presence of endocytosis modulators and at low temperature, suggesting an energy-dependent mechanism consistent with endocytosis. On the whole, the biological activity evaluated herein suggests that the complex could be a promising anticancer agent.
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Affiliation(s)
- Tânia S Morais
- Centro de Ciências Moleculares e Materiais, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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Rosado T, Bernardo P, Koci K, Coelho AV, Robalo MP, Martins LO. Methyl syringate: an efficient phenolic mediator for bacterial and fungal laccases. Bioresour Technol 2012; 124:371-378. [PMID: 22995168 DOI: 10.1016/j.biortech.2012.08.023] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 08/03/2012] [Accepted: 08/04/2012] [Indexed: 06/01/2023]
Abstract
The aim of the present work is to provide insight into the mechanism of laccase reactions using syringyl-type mediators. We studied the pH dependence and the kinetics of oxidation of syringyl-type phenolics using the low CotA and the high redox potential TvL laccases. Additionally, the efficiency of these compounds as redox mediators for the oxidation of non-phenolic lignin units was tested at different pH values and increasing mediator/non-phenolic ratios. Finally, the intermediates and products of reactions were identified by LC-MS and (1)H NMR. These approaches allow concluding on the (1) mechanism involved in the oxidation of phenolics by bacterial laccases, (2) importance of the chemical nature and properties of phenolic mediators, (3) apparent independence of the enzyme's properties on the yields of non-phenolics conversion, (4) competitive routes involved in the catalytic cycle of the laccase-mediator system with several new C-O coupling type structures being proposed.
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Affiliation(s)
- Tânia Rosado
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Oeiras, Portugal
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Morais TS, Silva TJ, Marques F, Robalo MP, Avecilla F, Madeira PJA, Mendes PJ, Santos I, Garcia MH. Synthesis of organometallic ruthenium(II) complexes with strong activity against several human cancer cell lines. J Inorg Biochem 2012; 114:65-74. [DOI: 10.1016/j.jinorgbio.2012.04.014] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 04/24/2012] [Accepted: 04/24/2012] [Indexed: 11/15/2022]
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Morais TS, Garcia MH, Robalo MP, Piedade M, Duarte MT, Villa de Brito MJ, Amorim Madeira PJ. Synthesis and structural characterization of new piano-stool ruthenium(II) complexes bearing 1-butylimidazole heteroaromatic ligand. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.04.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jacob C, da Piedade FM, Robalo MP, Duarte MT. Evaluation of intermolecular interactions in thioxanthone derivatives: substituent effect on crystal diversity. CrystEngComm 2011. [DOI: 10.1039/c0ce00783h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Moreno V, Font-Bardia M, Calvet T, Lorenzo J, Avilés FX, Garcia MH, Morais TS, Valente A, Robalo MP. DNA interaction and cytotoxicity studies of new ruthenium(II) cyclopentadienyl derivative complexes containing heteroaromatic ligands. J Inorg Biochem 2010; 105:241-9. [PMID: 21194624 DOI: 10.1016/j.jinorgbio.2010.10.009] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 10/19/2010] [Accepted: 10/20/2010] [Indexed: 11/27/2022]
Abstract
Four ruthenium(II) complexes with the formula [Ru(η(5)-C(5)H(5))(PP)L][CF(3)SO(3)], being (PP = two triphenylphosphine molecules), L = 1-benzylimidazole, ; (PP = two triphenylphosphine molecules), L = 2,2'bipyridine, ; (PP = two triphenylphosphine molecules), L = 4-Methylpyridine, ; (PP = 1,2-bis(diphenylphosphine)ethane), L = 4-Methylpyridine, , were prepared, in view to evaluate their potentialities as antitumor agents. The compounds were completely characterized by NMR spectroscopy and their crystal and molecular structures were determined by X-ray diffraction. Electrochemical studies were carried out giving for all the compounds quasi-reversible processes. The images obtained by atomic force microscopy (AFM) suggest interaction with pBR322 plasmid DNA. Measurements of the viscosity of solutions of free DNA and DNA incubated with different concentrations of the compounds confirmed this interaction. The cytotoxicity of compounds 1234 was much higher than that of cisplatin against human leukemia cancer cells (HL-60 cells). IC(50) values for all the compounds are in the range of submicromolar amounts. Apoptotic death percentage was also studied resulting similar than that of cisplatin.
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Affiliation(s)
- Virtudes Moreno
- Department de Química Inorgànica, Universitat de Barcelona, Martí y Franquès 1-11, 08028, Barcelona, Spain.
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Ferreira AP, da Silva JLF, Duarte MT, da Piedade MFM, Robalo MP, Harjivan SG, Marzano C, Gandin V, Marques MM. Synthesis and Characterization of New Organometallic Benzo[b]thiophene Derivatives with Potential Antitumor Properties. Organometallics 2009. [DOI: 10.1021/om9003835] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Garcia MH, Mendes PJ, Robalo MP, Duarte MT, Lopes N. Synthesis and electrochemical studies of η5-monocyclopentadienylruthenium(II) complexes with substituted thiophene nitrile ligands. Crystal structure of [Ru(η5-C5H5)(dppe)(NC{SC4H2}2NO2)][PF6]. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pereira L, Coelho A, Viegas C, Ganachaud C, Iacazio G, Tron T, Robalo MP, Martins L. On the Mechanism of Biotransformation of the Anthraquinonic Dye Acid Blue 62 by Laccases. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900271] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Garcia MH, Florindo P, Piedade MFM, Duarte MT, Robalo MP, Goovaerts E, Wenseleers W. Synthesis and structural characterization of ruthenium(II) and iron(II) complexes containing 1,2-di-(2-thienyl)-ethene derived ligands as chromophores. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.11.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Garcia MH, Florindo P, Piedade MFM, Duarte MT, Robalo MP, Heck J, Wittenburg C, Holtmann J, Licandro E. Synthesis of organometallic Ru(II) and Fe(II) complexes containing fused rings hemi-helical ligands as chromophores. Evaluation of non-linear optical properties by HRS. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.05.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Garcia MH, Mendes PJ, Robalo MP, Dias AR, Campo J, Wenseleers W, Goovaerts E. Compromise between conjugation length and charge-transfer in nonlinear optical η5-monocyclopentadienyliron(II) complexes with substituted oligo-thiophene nitrile ligands: Synthesis, electrochemical studies and first hyperpolarizabilities. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.03.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Duarte MT, Piedade MFM, Robalo MP, Jacob C, Garcia MH. The effect of counter-ions on the supramolecular arrangement of (benzonitrile)[1,2-bis(diphenylphosphino)ethane](η 5-cyclopentadienyl)iron(II) cations. Acta Crystallogr C 2006; 62:m531-4. [PMID: 17088618 DOI: 10.1107/s0108270106038662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2006] [Accepted: 09/21/2006] [Indexed: 11/10/2022] Open
Abstract
The title compound, [1,2-bis(diphenylphosphino)ethane](eta5-cyclopentadienyl)(4-nitrobenzonitrile)iron(II) iodide, [Fe(eta5-C5H5)(C7H4N2O2)(C26H4P2)]I, crystallizes in the non-centrosymmetric space group Cc, which is a promising result for obtaining quadratic non-linear optical properties. However, the packing shows that the iodide counter-ion promotes the cancellation of almost all the dipoles, resulting in a supramolecular motif of cationic chains aligned in opposite directions making an angle of 35.2 degrees. The use of PF6- as counter-ion induces the crystallization of the complex in a centrosymmetric space group. These results show that the introduction of different counter-ions, of different size and geometry, allows specific and directional intermolecular interactions that can determine the formation of a particular type of crystal packing.
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Affiliation(s)
- M Teresa Duarte
- Centro de Química Estrutural, Instituto Superior Técnico, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal.
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Duarte MT, Piedade MFM, Robalo MP, Teixeira APS, Garcia MH. A supramolecular zigzag chain of organometallic dipoles mediated by PF6- anions. Acta Crystallogr C 2005; 61:m386-9. [PMID: 16082088 DOI: 10.1107/s0108270105021281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2005] [Accepted: 07/04/2005] [Indexed: 11/11/2022] Open
Abstract
The title compound, (eta5-cyclopentadienyl)(4-nitrobenzonitrile-kappaN)(trimethylphosphine-kappaP)(triphenylphosphite-kappaP)iron(II) hexafluorophosphate, [Fe(C5H5)(C7H4N2O2)(C18H15O3P)(C3H9P)]PF6, has been characterized by spectroscopic and X-ray diffraction in order to evaluate the tuning of the electron density at the metal centre and the extension of the pi delocalization on the molecule due to the presence of phosphite and phosphine co-ligands. The compound crystallizes in the centrosymmetric space group P2(1)/c, which destroys the possibility of exhibiting any quadratic non-linear optical properties. The packing shows a supramolecular zigzag chain of antiparallel cations connected via the PF6- anions through C-H...F(delta-) interactions, with H...F distances ranging from 2.39 to 2.67 A. Each zigzag chain is composed of isomeric organometallic fragments containing either R or S molecules. These chains are connected through weak intermolecular C-H...C interactions, forming a two-dimensional plane parallel to (101).
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Affiliation(s)
- M Teresa Duarte
- Centro de Química Estrutural, Instituto Superior Técnico, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal.
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Garcia MH, Robalo MP, Dias AR, Duarte MT, Wenseleers W, Aerts G, Goovaerts E, Cifuentes MP, Hurst S, Humphrey MG, Samoc M, Luther-Davies B. Synthesis and Nonlinear Optical Properties of η5-Monocyclopentadienyliron(II) Acetylide Derivatives. X-ray Crystal Structures of [Fe(η5-C5H5)(DPPE)(p-C⋮CC6H4NO2)] and [Fe(η5-C5H5)(DPPE)((E)-p-C⋮CC6H4C(H)C(H)C6H4NO2)]. Organometallics 2002. [DOI: 10.1021/om0104619] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Helena Garcia
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - M. Paula Robalo
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Alberto R. Dias
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - M. Teresa Duarte
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Wim Wenseleers
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - G. Aerts
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Etienne Goovaerts
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Marie P. Cifuentes
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Steph Hurst
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Mark G. Humphrey
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Marek Samoc
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
| | - Barry Luther-Davies
- Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, Departamento de Química, Universidade de Évora, Colégio Luís António Verney, Rua Romão Ramalho no. 59, 7000-671 Évora, Portugal, Physics Department, University of Antwerp (UIA), Universiteitsplein 1, 2610 Wilrijk-Antwerpen, Belgium, Department of Chemistry, Australian National
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Helena Garcia M, Rodrigues JC, Romão Dias A, Piedade MM, Teresa Duarte M, Paula Robalo M, Lopes N. Second harmonic generation of η5-monocyclopentadienyl ruthenium p-benzonitrile derivatives by Kurtz powder technique. Crystal and molecular structure determinations of [Ru(η5-C5H5)((+)-DIOP)(p-NCC6H4NO2)][X], X=PF6−, CF3SO3− and [Ru(η5-C5H5)((+)-DIOP)(NCCH3)][PF6]. J Organomet Chem 2001. [DOI: 10.1016/s0022-328x(01)01041-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Wenseleers W, Gerbrandij AW, Goovaerts E, Garcia MH, Robalo MP, Mendes PJ, Rodrigues JC, Dias AR. Hyper-Rayleigh scattering study of η5-monocyclopentadienyl–metal complexes for second order non-linear optical materials. ACTA ACUST UNITED AC 1998. [DOI: 10.1039/a707556a] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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