1.
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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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2.
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26 p, 1.4 MB |
Drastic effect of the peptide sequence on the copper-binding properties of tripeptides and the electrochemical behaviour of their copper(II) complexes
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Mena Fernández, Silvia (Universitat Autònoma de Barcelona. Departament de Química) ;
Mirats Arce, Andrea (Universitat Autònoma de Barcelona. Departament de Química) ;
Caballero, Ana B (Universitat Autònoma de Barcelona. Departament de Química) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Barrios, Leoní A. (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica) ;
Teat, Simon J. (Lawrence Berkeley National Laboratory. Advanced Light Source) ;
Rodríguez Santiago, Luis (Universitat Autònoma de Barcelona. Departament de Química) ;
Sodupe Roure, Mariona (Universitat Autònoma de Barcelona. Departament de Química) ;
Gámez Enamorado, Patrick (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica)
The binding and electrochemical properties of the complexes CuII-HAH, CuII-HWH, CuII-Ac-HWH, CuII-HHW, and CuII-WHH have been studied by using NMR and UV/Vis spectroscopies, CV, and density functional calculations. [...]
2018 - 10.1002/chem.201704623
Chemistry, Vol. 24, issue 20 (April 2018) , p. 5153-5162
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3.
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43 p, 3.4 MB |
Electrochromic biosensors based on screen-printed Prussian Blue electrodes
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Aller Pellitero, Miguel (Institut de Microelectrònica de Barcelona) ;
Fremeau, Joséphine (Centre National de la Recherche Scientifique. Université Bourgogne Franche-Comté. Institut UTINAM) ;
Villa, Rosa (Institut de Microelectrònica de Barcelona) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Lakard, Boris (Centre National de la Recherche Scientifique. Université Bourgogne Franche-Comté. Institut UTINAM) ;
Hihn, Jean Yves (Centre National de la Recherche Scientifique. Université Bourgogne Franche-Comté. Institut UTINAM) ;
del Campo, F. Javier (Institut de Microelectrònica de Barcelona)
Prussian Blue (PB)-modified graphite screen-printed electrodes are increasingly being used in electrochemical biosensors. However, they do not allow the observation of the electrochromism of PB. This work presents the construction of PB-based, electrochromic screen-printed biosensors. [...]
2019 - 10.1016/j.snb.2019.03.100
Sensors and actuators. B, Chemical, Vol. 290 (July 2019) , p. 591-597
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4.
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5.
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17 p, 4.4 MB |
Photoelectro-enzymatic glucose reusable biosensor by using dithienylethene mediators
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Márquez, Augusto (Institut de Microelectrònica de Barcelona) ;
Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Dominguez, Carlos (Institut de Microelectrònica de Barcelona) ;
Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
In the development of colorimetric biosensors, the use of electrochromic mediators has been accepted and widely used during decades. The main drawback of these types of enzymatic substrates is the difficult recovery of the initial redox state of the molecule, which can be done electrochemically or by antioxidants addition, complicating the initially simple structure of the biosensor. [...]
2020 - 10.1002/chem.202000865
Chemistry, Vol. 26, Issue 40 (July 2020) , p. 8714-8719
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6.
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10 p, 1.1 MB |
Room temperature ionic liquids versus organic solvents as lithium-oxygen battery electrolytes
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Knipping, Etienne (Universitat Autònoma de Barcelona. Departament de Química) ;
Aucher, Christophe (Leitat Technological Center (Terrassa)) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química) ;
Aubouy, Laurent (Leitat Technological Center (Terrassa))
Imidazolium, pyrrolidinium and piperidinium room temperature ionic liquids (RTILs) are characterized to evaluate their thermal stability, ionic conductivity, viscosity, potential window and lithium solvation, which are key parameters for lithium-oxygen (Li-O) battery electrolytes. [...]
2018 - 10.1039/c8nj00449h
New journal of chemistry, Vol. 42, Issue 6 (March 2018) , p. 4693-4699
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7.
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12 p, 1.5 MB |
From 4-nitrotoluene and 4,4'-dinitrobibenzyl to E -4,4'-dinitrostilbene : An electrochemical approach
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Gallardo, Iluminada (Universitat Autònoma de Barcelona) ;
Gómez, Ana Belén (Universitat Autònoma de Barcelona) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona) ;
Lariño, Adrián (Universitat Autònoma de Barcelona) ;
Moreno Ferrer, Miquel (Universitat Autònoma de Barcelona) ;
Ortigosa, Manuel (Universitat Autònoma de Barcelona) ;
Soler, Sergio (Universitat Autònoma de Barcelona)
The dianions formed by electroreduction of Z-O2NC6H4CH=CHC6H4NO2, E-O2NC6H4CH=CHC6H4NO2, O2NC6H4CH2-CH2C6H4NO2 or O2NC6H4CMeH-CMeHC6H4NO2, as well as the anion radical arising from 4-nitrotoluene are stable, in the time scale of the cyclic voltammetry (DMF+0. [...]
2018 - 10.1039/c8nj00131f
New journal of chemistry, Vol. 42, Issue 9 (May 2018) , p. 7005-7015
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8.
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26 p, 1.3 MB |
Study of P(VDF-co-HFP)-ionic liquid based ionogels for designing flexible displays
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Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Muñoz Berbel, Xavier (Institut de Microelectrònica de Barcelona) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
In flexible displays, solid electrolytes promote electron-transfer without compromising system integrity. Ionogels (IGs) are now preferred among other solid electrolytes, e. g. inorganic and hydrogel electrolytes, for being easier to produce than the former and showing excellent properties, including high ionic conductivities, broad electrochemical window, transparency, flexibility, and non-solvent volatility than the latter. [...]
2020 - 10.1016/j.molliq.2020.114033
Journal of Molecular Liquids, Vol. 318 (November 2020) , art. 114033
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9.
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22 p, 2.1 MB |
Screen-printable electrochromic polymer inks and ion gel electrolytes for the design of low-power, flexible electrochromic devices
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Santiago, Sara (Universitat Autònoma de Barcelona. Departament de Química) ;
Aller Pellitero, Miguel (Institut de Microelectrònica de Barcelona) ;
del Campo, F. Javier (Institut de Microelectrònica de Barcelona) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona. Departament de Química)
We have developed electrochromic inks and electrolyte materials to enable mass production of flexible electrochromic displays (ECDs) and other optoelectronic devices by screen printing. Here we present a new screen-printable ink incorporating electrochromic polymer, poly(3,4-propylenedioxythiophene)bis(ethylhexyloxy), referred to here as ECP-Magenta, and antimony-doped tin oxide (ATO/TiO) particles to facilitate electron transport. [...]
2019 - 10.1002/elan.201900154
Electroanalysis, Vol. 31, Issue 9 (September 2019) , p. 1664-1671
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10.
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25 p, 6.0 MB |
A self-powered skin-patch electrochromic biosensor
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Santiago, Sara (Universitat Autònoma de Barcelona) ;
Río-Colín, Diego (Universidad Del País Vasco) ;
Azizkhani, Haniyeh (Universitat Autònoma de Barcelona) ;
Aller Pellitero, Miguel (Johns Hopkins University School of Medicine) ;
Guirado López, Gonzalo (Universitat Autònoma de Barcelona) ;
del Campo, F. Javier (Institut de Microelectrònica de Barcelona)
One of the limitations of many skin-patch wearable sensors today is their dependence on silicon-based electronics, increasing their complexity and unit cost. Self-powered sensors, in combination with electrochromic materials, allow simplifying the construction of these devices, leading to powerful analytical tools that remove the need for external detection systems. [...]
2021 - 10.1016/j.bios.2020.112879
Biosensors and bioelectronics, Vol. 175 (March 2021) , art. 112879
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