1.
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6 p, 4.8 MB |
Bacteria Detection at a Single-Cell Level through a Cyanotype-Based Photochemical Reaction
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Dietvorst, Jiri (Institut de Microelectrònica de Barcelona) ;
Ferrer-Vilanova, Amparo (Universitat Autònoma de Barcelona. Departament de Química) ;
Iyengar, S.N (Kungl. Tekniska högskolan (Estocolm (Suècia)) ;
Russom, Aman (Kungl. Tekniska högskolan (Estocolm (Suècia)) ;
Vigués, Núria (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Mas Gordi, Jordi (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Vilaplana, Luïsa (Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina) ;
Marco, María Pilar (Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona)
The detection of living organisms at very low concentrations is necessary for the early diagnosis of bacterial infections, but it is still challenging as there is a need for signal amplification. Cell culture, nucleic acid amplification, or nanostructure-based signal enhancement are the most common amplification methods, relying on long, tedious, complex, or expensive procedures. [...]
2021 - 10.1021/acs.analchem.1c03326
Analytical chemistry, Vol. 94, Issue 2 (January 2021) , p. 787-792
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2.
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15 p, 5.2 MB |
Study on the electrochromic properties of polypyrrole layers doped with different dye molecules
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Bayat, Maryam (Isfahan University of Technology. Department of Textile Engineering) ;
Izadan, Hossein (Isfahan University of Technology. Department of Textile Engineering) ;
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Estrany, Francesc (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Dinari, Mohammad (Isfahan University of Technology. Department of Chemistry) ;
Semnani, Dariush (Isfahan University of Technology. Department of Textile Engineering) ;
Alemán, Carlos (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
Three dye molecules (Dye) of Acid Brilliant Scarlet 3R (AR18), Amido Naphthol Red G (AR1), Indigo Carmine (IC), as well as sodium dodecyl sulfate (SDS) as dopant agents were used for electrochemical synthesis of polypyrrole (PPy) layers onto indium doped tin oxide (ITO) coated polyethylene terephthalate (PET) electrode. [...]
2021 - 10.1016/j.jelechem.2021.115113
Journal of Electroanalytical Chemistry, Vol. 886 (April 2021) , art. 115113
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3.
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4.
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6 p, 1.5 MB |
Dual-Wavelength Gated oxo-Diels-Alder Photoligation
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Villabona, Marc (Universitat Autònoma de Barcelona. Departament de Química) ;
Wiedbrauk, Sandra (Queensland University of Australia. Centre for Materials Science) ;
Feist, Florian (Queensland University of Australia. Centre for Materials Science) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Hernando Campos, Jordi (Universitat Autònoma de Barcelona. Departament de Química) ;
Barner-Kowollik, Christopher (Queensland University of Australia. Centre for Materials Science)
The control of chemical functionalization with orthogonal light stimuli paves the way toward manipulating materials with unprecedented spatiotemporal resolution. To reach this goal, we herein introduce a photochemical reaction system that enables two-color control of covalent ligation via an oxo-Diels-Alder cycloaddition between two separate light-responsive molecular entities: a UV-activated photocaged diene based on ortho-quinodimethanes and a carbonyl dienophile appended to a diarylethene photoswitch, whose reactivity can be modulated upon illumination with UV and visible light.
2021 - 10.1021/acs.orglett.1c00015
Organic Letters, Vol. 23, Issue 7 (April 2021) , p. 2405-2410
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5.
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13 p, 5.1 MB |
Electrochemical Reduction of 4-Nitrobenzyl Phenyl Thioether for Activation and Capture of CO2
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Mena, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ;
Louault, Cyril (Universitat Autònoma de Barcelona. Departament de Química) ;
Mesa, Verónica (Universitat Autònoma de Barcelona. Departament de Química) ;
Gallardo, Iluminada (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
In this work, a new simple molecule, 4-nitrobenzyl phenyl thioether (1), is prepared and used for controlling and tuning CO reactivity in function of the electrode potential. The first part of the study is devoted to determining the electrochemical reduction mechanism of 1 in N,N-dimethylformamide under nitrogen. [...]
2021 - 10.1002/celc.202100329
ChemElectroChem, Vol. 8, Issue 14 (July 2021) , p. 2649-2661
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6.
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9 p, 6.6 MB |
Sonochemical coating of Prussian Blue for the production of smart bacterial-sensing hospital textiles
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Ferrer-Vilanova, Amparo (Institut de Microelectrònica de Barcelona) ;
Alonso, Yasmine (Universitat Autònoma de Barcelona. Departament de Química) ;
Dietvorst, Jiri (Institut de Microelectrònica de Barcelona) ;
Pérez-Montero, Marta (Universitat Internacional de Catalunya) ;
Rodríguez-Rodríguez, Rosalía (Universitat Internacional de Catalunya) ;
Ivanova, Kristina (Universitat Politècnica de Catalunya) ;
Tzanov, Tzanko (Universitat Politècnica de Catalunya) ;
Vigués, Núria (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Mas Gordi, Jordi (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona)
In healthcare facilities, environmental microbes are responsible for numerous infections leading to patient's health complications and even death. The detection of the pathogens present on contaminated surfaces is crucial, although not always possible with current microbial detection technologies requiring sample collection and transfer to the laboratory. [...]
2021 - 10.1016/j.ultsonch.2020.105317
Ultrasonics sonochemistry, Vol. 70 (January 2021) , art. 105317
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7.
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13 p, 1.1 MB |
Multiplexed neural sensor array of graphene solution-gated field-effect transistors
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Schaefer, Nathan (Institut Català de Nanociència i Nanotecnologia) ;
Garcia Cortadella, Ramon (Institut Català de Nanociència i Nanotecnologia) ;
Martínez-Aguilar, Javier (Institut de Microelectrònica de Barcelona) ;
Schwesig, Gerrit (Bernstein Center for Computational Neuroscience) ;
Illa, Xavi (Institut de Microelectrònica de Barcelona) ;
Moya Lara, Ana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Hébert, Clément (Inserm and Université Grenoble Alpes) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Villa, Rosa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Sirota, Anton (Bernstein Center for Computational Neuroscience. Ludwig-Maximilians-University Munich) ;
Guimerà, Anton (Institut de Microelectrònica de Barcelona) ;
Garrido, Jose (Institut Català de Nanociència i Nanotecnologia)
Electrocorticography (ECoG) is a well-established technique to monitor electrophysiological activity from the surface of the brain and has proved crucial for the current generation of neural prostheses and brain-computer interfaces. [...]
2020 - 10.1088/2053-1583/ab7976
2D Materials, Vol. 7, issue 2 (April 2020) , art. 25046
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8.
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28 p, 1.7 MB |
Switchless multiplexing of graphene active sensor arrays for brain mapping
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Garcia Cortadella, Ramon (Institut Català de Nanociència i Nanotecnologia) ;
Schaefer, Nathan (Institut Català de Nanociència i Nanotecnologia) ;
Cisneros-Fernandez, José (Institut de Microelectrònica de Barcelona) ;
Ré, Lucia (Institut de Microelectrònica de Barcelona) ;
Illa, Xavi (Institut de Microelectrònica de Barcelona) ;
Schwesig, Gerrit (Ludwig-Maximilians Universität München. Faculty of Medicine) ;
Moya Lara, Ana (Institut de Microelectrònica de Barcelona) ;
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Villa, Rosa (Institut de Microelectrònica de Barcelona) ;
Sirota, Anton (Ludwig-Maximilians Universität München. Faculty of Medicine) ;
Serra Graells, Francesc (Institut de Microelectrònica de Barcelona) ;
Garrido, Jose (Institut Català de Nanociència i Nanotecnologia) ;
Guimerà, Anton (Institut de Microelectrònica de Barcelona)
Sensor arrays used to detect electrophysiological signals from the brain are paramount in neuroscience. However, the number of sensors that can be interfaced with macroscopic data acquisition systems currently limits their bandwidth. [...]
2020 - 10.1021/acs.nanolett.0c00467
Nano letters, Vol. 20, issue 5 (May 2020) , p. 3528-3537
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9.
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11 p, 809.8 KB |
Color-Tunable White-Light-Emitting Materials Based on Liquid-Filled Capsules and Thermally Responsive Dyes
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Vázquez Mera, Nuria Alexandra (Institut Català de Nanociència i Nanotecnologia) ;
Otaegui Rabanal, Jaume R. (Institut Català de Nanociència i Nanotecnologia) ;
Sánchez Sánchez, Rafael (Universitat Autònoma de Barcelona. Departament de Química) ;
Prats Álvarez, Gemma (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia) ;
Roscini, Claudio (Institut Català de Nanociència i Nanotecnologia) ;
Hernando Campos, Jordi (Universitat Autònoma de Barcelona. Departament de Química)
Color-tunable white-light-emitting materials are currently attracting much attention because of their potential applications in artificial lighting, sensing, and imaging. However, preparation of these systems from organic emitters is often cumbersome due to the interchromophoric interactions occurring upon solvent drying in the final solid materials, which can be hardly predicted and may lead to detrimental effects. [...]
2019 - 10.1021/acsami.9b02169
ACS applied materials & interfaces, Vol. 11, Issue 19 (May 2019) , p. 17751-17758
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10.
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18 p, 2.6 MB |
Electrochromic self-electrostabilized polypyrrole films doped with surfactant and Azo Dye
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Bayat, Maryam (Isfahan University of Technology. Department of Textile Engineering) ;
Izadan, Hossein (Isfahan University of Technology. Department of Textile Engineering) ;
Molina García, Brenda Guadalupe (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Sánchez Jiménez, Margarita (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Semnani, Dariush (Isfahan University of Technology. Department of Textile Engineering) ;
Dinari, Mohammad (Isfahan University of Technology. Department of Chemistry) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Estrany coda, Francesc (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Alemán, Carlos (Barcelona Research Center for Multiscale Science and Engineering)
Two azo dyes, acid red 1 (AR1) and acid red 18 (AR18), were used alone or in combination with sodium dodecyl sulfate (SDS) for the electropolymerization of a pyrrole monomer. Polypyrrole (PPy) showed higher redox capacity when SDS and AR18 were used simultaneously as dopant agents (PPy/AR18-SDS) than when the conducting polymer was produced in the presence of SDS, AR18, AR1, or an AR1/SDS mixture. [...]
2019 - 10.3390/polym11111757
Polymers, Vol. 11, issue 11 (Nov. 2019) , art. 1757
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