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17 p, 2.1 MB |
Promising anticancer agents based on 8-hydroxyquinoline hydrazone copper(II) complexes
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Ribeiro, Nádia (Universidade de Lisboa) ;
Bulut, Ipek (Koç University) ;
Sergi, Baris (Koç University) ;
Pósa, Vivien (University of Szeged) ;
Spengler, Gabriella (University of Szeged) ;
Sciortino, Giuseppe (Institut d'Investigacions Químiques de Catalunya) ;
André, Vânia (Universidade de Lisboa) ;
Ferreira, Liliana P. (Universidade de Lisboa) ;
Biver, Tarita (Università degli Studi di Pisa) ;
Ugone, Valeria (Istituto CNR di Chimica Biomolecolare) ;
Garribba, Eugenio (Università di Sassari. Dipartimento di Medicina, Chirurgia e Farmacia) ;
Costa Pessoa, João (Universidade de Lisboa) ;
Enyedy, Éva A. (University of Szeged) ;
Acilan, Ceyda (Koç University) ;
Correia, Isabel (Universidade de Lisboa)
We report the synthesis and characterization of a group of benzoylhydrazones (Ln) derived from 2-carbaldehyde-8-hydroxyquinoline and benzylhydrazides containing distinct para substituents (R = H, Cl, F, CH3, OCH3, OH and NH2, for L1-7, respectively; in L8 isonicotinohydrazide was used instead of benzylhydrazide). [...]
2023 -  10.3389/fchem.2023.1106349
Frontiers in chemistry, Vol. 11 (March 2023) , art. 1106349
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13 p, 2.1 MB |
Spiropyran-based chromic hydrogels for CO2 absorption and detection
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Marco, Arnau (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Sebastián Pérez, Rosa Maria (Universitat Autònoma de Barcelona. Departament de Química) ;
Hernando Campos, Jordi (Universitat Autònoma de Barcelona. Departament de Química)
By enabling rapid, cost-effective, user-friendly and in situ detection of carbon dioxide, colorimetric CO2 sensors are of relevance for a variety of fields. However, it still remains a challenge the development of optical chemosensors for CO2 that combine high sensitivity, selectivity and reusability with facile integration into solid materials. [...]
2023 - 10.3389/fchem.2023.1176661
Frontiers in chemistry, Vol. 11 (May 2023) , art. 1176661
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1.7 MB |
Directed Self-Assembly of Trimeric DNA-Bindingchiral Miniprotein Helicates
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Gómez-González, Jacobo (Universidade de Santiago de Compostela. Departamento de Química Inorgánica) ;
Peña, Diego G. (Universidade de Santiago de Compostela. Departamento de Química Orgánica) ;
Barka, Ghofrane (Universidade de Santiago de Compostela. Departamento de Química Inorgánica) ;
Sciortino, Giuseppe (Universitat Autònoma de Barcelona. Departament de Química) ;
Maréchal, Jean-Didier (Universitat Autònoma de Barcelona. Departament de Química) ;
Vázquez López, Miguel (Universidade de Santiago de Compostela. Departamento de Química Inorgánica) ;
Vázquez, M. Eugenio (Universidade de Santiago de Compostela. Departamento de Química Orgánica)
We propose that peptides are highly versatile platforms for the precise design of supramolecular metal architectures, and particularly, for the controlled assembly of helicates. In this context, we show that the bacteriophage T4 Fibritin foldon (T4Ff) can been engineered on its N-terminus with metal-chelating 2,2'-bipyridine units that stereoselectively assemble in the presence of Fe(II) into parallel, three-stranded peptide helicates with preferred helical orientation. [...]
2018 - 10.3389/fchem.2018.00520
Frontiers in chemistry, Vol. 6 (October 2018) , art. 520
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11 p, 1.7 MB |
Biospeciation of Potential Vanadium Drugs of Acetylacetonate in the Presence of Proteins
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Sciortino, Giuseppe (Universitat Autònoma de Barcelona. Departament de Química) ;
Ugone, Valeria (Università di Sassari. Dipartimento di Chimica e Farmacia) ;
Sanna, Daniele (Consiglio Nazionale delle Ricerche. Istituto di Chimica Biomolecolare) ;
Lubinu, Giuseppe (Università di Sassari. Dipartimento di Chimica e Farmacia) ;
Ruggiu, Simone (Università di Sassari. Dipartimento di Chimica e Farmacia) ;
Maréchal, Jean-Didier (Universitat Autònoma de Barcelona. Departament de Química) ;
Garribba, Eugenio (Università di Sassari. Dipartimento di Chimica e Farmacia)
Among vanadium compounds with potential medicinal applications, [V IV O(acac)] is one of the most promising for its antidiabetic and anticancer activity. In the organism, however, interconversion of the oxidation state to +III and +V and binding to proteins are possible. [...]
2020 - 10.3389/fchem.2020.00345
Frontiers in chemistry, Vol. 8 (May 2020) , art. 345
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15 p, 5.8 MB |
Nanocrystalline electrodeposited Fe-W/Al2O3 Composites : effect of Alumina Sub-microparticles on the mechanical, tribological, and corrosion properties
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Nicolenco, Aliona (Institute of Applied Physics (Moldova)) ;
Mulone, Antonio (Chalmers University of Technology. Department of Industrial and Materials Science (Sweden)) ;
Imaz, Naroa (CIDETEC) ;
Tsyntsaru, Natalia (Vilnius University. Department of Physical Chemistry (Lithuania)) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Pellicer Vilà, Eva Maria (Institució Catalana de Recerca i Estudis Avançats) ;
Klement, Uta (Chalmers University of Technology. Department of Industrial and Materials Science (Sweden)) ;
Cesiulis, Henrikas (Vilnius University. Department of Physical Chemistry (Lithuania)) ;
García-Lecina, Eva (CIDETEC)
In this study, nanocrystalline Fe-W alloy and Fe-W/Al2O3 composite coatings with various contents of sub-microsized alumina particles have been obtained by electrodeposition from an environmentally friendly Fe(III)-based electrolyte with the aim to produce a novel corrosion and wear resistant material. [...]
2019 - 10.3389/fchem.2019.00241
Frontiers in chemistry, Vol. 7 (April 2019) , art. 241
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11 p, 2.5 MB |
Synthesis of functionalized fluorescent silver nanoparticles and their toxicological effect in aquatic environments (Goldfish) and HEPG2 cells
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Oliveira, Elisabete (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia) ;
Santos, Hugo M. (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia) ;
Garcia-Pardo, Javier (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Diniz, Mário (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia) ;
Lorenzo Rivera, Julia (Universitat Autònoma de Barcelona. Departament de Bioquímica i de Biologia Molecular) ;
Rodríguez-González, Benito (Centro de Apoyo Científico y Tecnológico a la Investigación) ;
Capelo-Martínez, José Luis (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia) ;
Lodeiro, Carlos (Universidade Nova de Lisboa. Faculdade de Ciências e Tecnologia)
Silver nanoparticles, AgNPs, are widely used in our daily life, mostly due to their antibacterial, antiviral, and antifungal properties. However, their potential toxicity remains unclear. In order to unravel this issue, emissive AgNPs were first synthetized using an inexpensive photochemical method, and then their permeation was assessed in vivo in goldfish and in vitro in human hepatoma cells (HepG2). [...]
2013 - 10.3389/fchem.2013.00029
Frontiers in chemistry, Vol. 1, art. 29 (Dec. 2013)
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