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Mostrando ítems 397-416 de 511

    • openAccess   Revealing the contribution of singlet oxygen in the photoelectrochemical oxidation of benzyl alcohol 

      Arcas, Ramón; Peris, Eduardo; Mas, Elena; Fabregat-Santiago, Francisco Royal Society of Chemistry (2021-02)
      Photoelectrochemical approaches are finding use in the transformation of organic molecules beyond water oxidation and CO2 reduction. Among the different reactions that can be performed, the selective oxidation of alcohols ...

    • openAccess   Role of Severe Acute Respiratory Syndrome Coronavirus Viroporins E, 3a, and 8a in Replication and Pathogenesis 

      Castaño Rodríguez, Carlos; Honrubia, José M.; Gutiérrez-Álvarez, Javier; De Diego, Marta L.; Nieto Torres, José L.; Jiménez Guardeño, José M.; Regla Nava, José A.; Fernández Delgado, Raúl; Verdiá Báguena, Carmen; Queralt-Martín, María; Kochan, Grazyna; Perlman, Stanley; Aguilella, Vicente; Sola, Isabel; Enjuanes, Luis American Society for Microbiology (2018)
      Viroporins are viral proteins with ion channel (IC) activity that play an important role in several processes, including virus replication and pathogenesis. While many coronaviruses (CoVs) encode two viroporins, severe ...

    • closedAccess   Role of the Selective Contacts in the Performance of Lead Halide Perovskite Solar Cells 

      Juarez-Perez, Emilio J.; Wuβler, Michael; Fabregat-Santiago, Francisco; Lakus Wollny, Kerstin; Mankel, Eric; Mayer, Thomas; Jaegermann, Wolfram; Mora-Sero, Ivan American Chemical Society (2014-01)
      The effect of electron- and hole-selective contacts in the final cell performance of hybrid lead halide perovskite, CH3NH3PbI3, solar cells has been systematically analyzed by impedance spectroscopy. Complete cells with ...

    • openAccess   Role of Vertical Segregation in Semitransparent Organic Photovoltaics 

      Kovalenko, Alexander; Guerrero, Antonio; Garcia-Belmonte, Germà ACS Publications (2015)
      In this work, the efficiency of semitransparent organic photovoltaic (OPV) devices for low intensity applications is investigated as a function of the processing conditions. It is observed that a thermal treatment of the ...

    • closedAccess   Role of Zn0 electron-selective layers in regular and inverted bulk heterojunction solar cells 

      Garcia-Belmonte, Germà; Bisquert, Juan; Pérez Boix, Juan; Pacios, Roberto; Etxebarria, Ikerne; Ajuria, Jon American Chemical Society (2011-02)
      Here the role of metal oxide (ZnO) electron-selective layers in the operating mechanisms of bulk-heterojunction polymer−fullerene solar cells is addressed. Inverted as well as regular structures containing ZnO layers at ...

    • closedAccess   Room temperature stable ClPrNTf2 ionic liquid utilizing for chemical sensor development 

      Rahman, Mohammed M.; Marwani, Hadi M.; Alshehri, Abdelmohsen A.; Albar, Hassan A.; Bisquert, Juan; Asiri, Abdullah M. Elsevier (2016-06)
      A stable ionic liquid was prepared at room-temperature using the metathesis reaction, which was consummated by the reaction of l-Phenylalanine ethyl ester hydrochloride (chlorpromazine hydrochloride) with lithium-bis(tri ...

    • openAccess   Ru-based nanoparticles supported on carbon nanotubes for electrocatalytic hydrogen evolution: structural and electronic effects 

      Romero, Núria; Fenoll, Dídac A.; Gil Jiménez, Laia; Campos Jara, Sergi; Creus, Jordi; Martí Balaguer, Gerard; Heras-Domingo, Javier; Collière, Vincent; Mesa, Camilo A.; Gimenez, Sixto; Francàs Forcada, Laia; Rodriguez-Santiago, Luís; Solans Monfort, Xavier; Sodupe, Mariona; Bofill, Roger; PHILIPPOT, Karine; García-Antón, Jordi; Sala, Xavier Royal Society of Chemistry (2023-10-10)
      The performance of Ru-based nanoparticles (NPs) in the hydrogen evolution reaction (HER) relies on both their structural properties and the oxidation state of the metal. Herein, the versatility of the organometallic approach ...

    • openAccess   SARS-CoV-2 accessory protein 7b forms homotetramers in detergent 

      Surya, Wahyu; Queralt-Martin, Raquel; Mu, Yuguang; Aguilella, Vicente; Torres, Jaume BioMed Central (BMC) (2022-11)
      A global pandemic is underway caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The SARS-CoV-2 genome, like its predecessor SARS-CoV, contains open reading frames that encode accessory proteins ...

    • closedAccess   Sb2S3-Sensitized Photoelectrochemical Cells: Open Circuit Voltage Enhancement through the Introduction of Poly-3-hexylthiophene Interlayer 

      Heo, Jin Hyuck; Im, Sang Hyuk; Kim, Hi-jung; Boix, Pablo P; Lee, Suk Joong; Seok, Sang Il; Mora-Sero, Ivan; Bisquert, Juan American Chemical Society (2012)
      The Sb2S3-sensitized photoelectrochemical cells (Sb2S3–SPECs) in cobalt electrolyte were fabricated by depositing Sb2S3 on the macroporous TiO2 nanorods electrodes and consecutively spin-coating P3HT (Poly-3-hexylthiophene) ...

    • openAccess   Scaling Behavior of Ionic Transport in Membrane Nanochannels 

      Queralt-Martín, María; López Peris, María Lidón; Aguilella-Arzo, Marcel; Aguilella, Vicente; Alcaraz, Antonio American Chemical Society (2018)
      Ionic conductance in membrane channels exhibits a power-law dependence on electrolyte concentration (G ∼ c α ). The many scaling exponents, α, reported in the literature usually require detailed interpretations ...

    • closedAccess   Science in the Age of Digital Networking 

      Bisquert, Juan; Hagfeldt, Anders; De Angelis, Filippo American Chemical Society (2015-08)
      Today, the world is moving fast, but we do not know exactly where this leads yet. As the economy of knowledge inevitably extends its tentacles on the realm of science, what are we –scientists- going to do? So far, an ...

    • closedAccess   Segmental dynamics in poly(ε-caprolactone)/poly(L-lactide) copolymer networks 

      Sabater Serra, Roser; Escobar Ivirico, Jorge L.; Meseguer Dueñas, José María; Andrio, Andreu; Gomez Ribelles, Jose Luis; Salmerón Sánchez, Manuel Wiley (2009)
      Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) networks were prepared from macromonomer diols functionalized with methacrylic anhydride, which allows one to get self-crosslinkable polymers. Besides, both macromonomers ...

    • openAccess   Selective contacts drive charge extraction in quantum dot solids via asymmetry in carrier transfer kinetics 

      Mora-Sero, Ivan; González Pedro, Victoria; Gimenez, Sixto; Bertoluzzi, Luca; Fabregat-Santiago, Francisco; Kemp, Kyle W.; Sargent, Edward H.; Bisquert, Juan Nature Publishing Group (2013)
      Colloidal quantum dot solar cells achieve spectrally selective optical absorption in a thin layer of solution-processed, size-effect tuned, nanoparticles. The best devices built to date have relied heavily on drift-based ...

    • openAccess   Selective Growth of Layered Perovskites for Stable and Efficient Photovoltaics 

      Taek Cho, Kyung; Lee, Yonghui; Almora Rodríguez, Osbel; Grancini, Giulia; Ryu, Jaehoon; Tschumi, Manuel; Jang, Jyongsik; Paek, Sanghyun; Garcia-Belmonte, Germà; Nazeeruddin, Mohammad Khaja Royal Society of Chemistry (2018-11)
      Perovskite solar cells (PSCs) are promising alternatives toward clean energy because of their high-power conversion efficiency (PCE) and low materials and processing cost. However, their poor stability under operation ...

    • closedAccess   Selectivity of Protein Ion Channels and the Role of Buried Charges. Analytical Solutions, Numerical Calculations, and MD Simulations 

      García Giménez, Elena; Alcaraz, Antonio; Aguilella-Arzo, Marcel; Aguilella, Vicente American Chemical Society (2015-06)
      The preference of large protein ion channels for cations or anions is mainly determined by the electrostatic interactions of mobile ions with charged residues of the protein. Here we discuss the widely spread paradigm that ...

    • openAccess   Self-supported ultra-active NiO-based electrocatalysts for the oxygen evolution reaction by solution combustion 

      Bucci, Alberto; García-Tecedor, Miguel; Corby, Sacha; Rao, Reshma R.; Martin-Diaconescu, Vlad; Oropeza, Freddy E; de la Peña O'Shea, Víctor Antonio; Durrant, James; Gimenez, Sixto; Lloret Fillol, Julio Royal Society of Chemistry (2021-04-20)
      The oxygen evolution reaction (OER) is a fundamental process to develop a technology that can drive energy transition towards renewable and sustainable fuels. Nevertheless, efficient and straightforward methodologies to ...

    • closedAccess   Semiconductor Nanostructures for Electronic and Opto-Electronic Device Applications 

      Moreels, Iwan; Brovelli, Sergio; Ribierre, Jean-Charles; Mora-Sero, Ivan Wiley (2020)

    • openAccess   Series resistance in organic bulk-heterojunction solar devices: Modulating carrier transport with fullerene electron traps 

      Guerrero, Antonio; Ripollés Sanchis, Teresa; Pérez Boix, Pablo; Garcia-Belmonte, Germà Elsevier (2012)
      Series resistance is one of the key parameters affecting the performance of organic photovoltaic devices. Several electronic mechanisms arising from different structures within the solar cell can contribute to increasing ...

    • openAccess   Severe acute respiratory syndrome coronavirus E protein transports calcium ions and activates the NLRP3 inflammasome 

      Nieto Torres, José L.; Verdiá Báguena, Carmen; Jiménez Guardeño, José M.; Regla Nava, José A.; Castaño Rodríguez, Carlos; Fernández Delgado, Raúl; Torres, Jaume; Aguilella, Vicente; Enjuanes, Luis Elsevier (2015-11)
      Severe acute respiratory syndrome coronavirus (SARS-CoV) envelope (E) protein is a viroporin involved in virulence. E protein ion channel (IC) activity is specifically correlated with enhanced pulmonary damage, edema ...

    • openAccess   Severe Acute Respiratory Syndrome Coronavirus Envelope Protein Ion Channel Activity Promotes Virus Fitness and Pathogenesis 

      Nieto Torres, José L.; De Diego, Marta L.; Verdiá Báguena, Carmen; Jiménez Guardeño, José M.; Regla Nava, José A.; Fernández Delgado, Raúl; Castaño Rodríguez, Carlos; Alcaraz, Antonio; Torres, Jaume; Aguilella, Vicente; Enjuanes, Luis Public Library of Science (2014)
      Deletion of Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) envelope (E) gene attenuates the virus. E gene encodes a small multifunctional protein that possesses ion channel (IC) activity, an important function ...