Now showing items 1-19 of 19

  • Bottom-up layer-by-layer assembling of antibacterial freestanding nanobiocomposite films 

    Francesko, Antonio; Ivanova, Kristina Dimitrova; Hoyo Pérez, Javier; Pérez-Rafael, Silvia; Petkova, Petya; Fernandes Macedo, Margarida Maria; Heinze, Thomas; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2018-07-27)
    Article
    Open Access
    In this study, freestanding nanobiocomposite films were obtained by the sequential deposition of biopolymer-capped silver nanoparticles (AgNPs) and hyaluronic acid (HA). At first, dispersions ofAgNPs decorated with chitosan ...
  • Building an antifouling zwitterionic coating on urinary catheters using an enzymatically triggered bottom-up approach 

    Díaz Blanco, Carlos; Ortner, Andreas; Dimitrov, Radostin; Navarro Sentanyes, Antonio; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2014-06-23)
    Article
    Restricted access - publisher's policy
    Catheter associated urinary tract infections are common during hospitalization due to the formation of bacterial biofilms on the indwelling device. In this study, we report an innovative biotechnology-based approach for ...
  • Carbon nanotube composite peptide-based biosensors as putative diagnostic tools for rheumatoid arthritis 

    Villa Jiménez, María de Gracia; Jiménez Jorquera, C.; Haro, I.; Gomara, M.J.; Sanmartí, R.; Fernández-Sánchez, C.; Mendoza Gómez, Ernesto (2011-09-15)
    Article
    Restricted access - publisher's policy
    This work reports on the fabrication and performance of a simple amperometric immunosensor device to be potentially used for the detection of serum anti-citrullinated peptide antibodies (ACPAs), which are specific for ...
  • Decoration of carbon nanostructures with metal sulfides by sonolysis of single-molecule precursors 

    Estrada, Ana Cristina; Mendoza Gómez, Ernesto; Trindade, Tito (2014-07-01)
    Article
    Restricted access - publisher's policy
    Carbon nanostructures have emerged in recent decades as uniquely convenient materials for a number of technologies. Some of their envisaged applications require hybrid nanostructures that result from the coupling of ...
  • Enzymatic functionalization of cork surface with antimicrobial hybrid biopolymer/silver nanoparticles 

    Francesko, Antonio; Blandon, Lucas; Vázquez, Mario; Petkova Petkova, Petya Stoyanova; Morató Farreras, Jordi; Pfeifer, Annett; Heinze, Thomas; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2015-05-13)
    Article
    Open Access
    Laccase-assisted assembling of hybrid biopolymer-silver nanoparticles and cork matrices into an antimicrobial material with potential for water remediation is herein described. Amino-functional biopolymers were first used ...
  • Enzyme multilayer coatings inhibit Pseudomonas aeruginosa biofilm formation on urinary catheters 

    Ivanova, Kristina Dimitrova; Macedo Fernandes, Margarida Maria; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2015-01-15)
    Article
    Open Access
    Bacteria use a signaling mechanism called quorum sensing (QS) to form complex communities of surface-attached cells known as biofilms. This protective mode of growth allows them to resist antibiotic treatment and originates ...
  • Escherichia coli and pseudomonas aeruginosa eradication by nano-penicillin G 

    Macedo Fernandes, Margarida Maria; Ivanova, Kristina Dimitrova; Francesko, Antonio; Rivera, Diana; Torrent Burgués, Juan; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2016-06-09)
    Article
    Open Access
    The transformation of penicillin G into nano/micro-sized spheres (nanopenicillin) using sonochemical technology was explored as a novel tool for the eradication of Gram-negative bacteria and their biofilms. Known by its ...
  • Gold nanoclusters for efficient removal of organic pollutants at room temperature 

    Santiago, Marta; Blázquez, Zaira; Galindo, Edurne; Alves, Leonor; Llorca Piqué, Jordi; Mendoza Gómez, Ernesto (2013)
    Conference report
    Restricted access - publisher's policy
    Preserving air quality of an enclosed space such as a submarine is a major challenge yet to be addressed. Currently, CO-H2 burners are employed to maintain a breathable air environment inside the submarine through catalytic ...
  • Hybrid chitosan-silver nanoparticles enzymatically-embedded on cork filter material for water disinfection 

    Garcia Peña, Lina Vanesa; Petkova, Petya; Margalef-Marti, Rosanna; Vives, Marc; Aguilar, Lorena; Gallegos, Angel; Francesko, Antonio; Perelshtein, Ilana; Gedanken, Aharon; Mendoza Gómez, Ernesto; Casas-Zapata, Juan Carlos; Morató Farreras, Jordi; Tzanov, Tzanko (2017-04-05)
    Article
    Restricted access - publisher's policy
    Microbial contamination remains a major challenge in supply of drinking water in developing regions, despite the continuous advances being made in water purification processes. The spread and transmission of pathogens due ...
  • Immobilization of antimicrobial core-shell nanospheres onto silicone for prevention of Escherichia coli biofilm formation 

    Macedo Fernandes, Margarida Maria; Ivanova, Kristina Dimitrova; Mendoza Gómez, Ernesto; Tzanov, Tzanko; Francesko, Antonio (2016-09-16)
    Article
    Open Access
    Escherichia coli (E. coli) strains are among the most frequently isolated microorganisms in urinary tract infections able to colonize the surface of urinary catheters and form biofilms. These biofilms are highly resistant ...
  • Improving immunosensor performance through oriented immobilization of antibodies on carbon nanotube composite surfaces 

    Puertas, Sara; de Gracia Villa, Maria; Mendoza Gómez, Ernesto; Jiménez Jorquera, Cecilia; de la Fuente, Jesús M.; Fernández-Sánchez, César; Grazú, Valeria (2013-05-05)
    Article
    Restricted access - publisher's policy
    We report the straightforward oriented covalent attachment of antibodies (Abs) on the surface of carboxylated multiwalled carbon nanotube-polystyrene (MWCNT-PS) materials. The combination of this composite material, applied ...
  • Microelectromechanical resonators based on an all polymer/carbon nanotube composite structural material 

    Sousa, P.M.; Gutierrez, M.; Mendoza Gómez, Ernesto; Llobera, A.; Chu, V.; Conde, J.P. (2011-07-25)
    Article
    Open Access
    Carboxylated multi-wall carbon-nanotubes (CNTs) monolayers are integrated on microfabricated all-polymer micro-electromechanical systems (pMEMS) resonator bridges on glass substrates. The structural layer of the MEMS bridges ...
  • Nanotecnología para la calefacción de componentes de automóvil 

    Carod de Arriba, Xavier; Ferreté Aymerich, Eduard; Casanova Hormaechea, Ignasi; González Benítez, María Margarita; Mendoza Gómez, Ernesto (2012)
    Conference lecture
    Open Access
    Desde hace ya unos años, el sector de la automoción centra sus esfuerzos en fabricar productos cada vez más eficientes y respetuosos con el medio ambiente. El creciente interés en desarrollar modelos eléctricos, ha ...
  • New insights into the role of the electronic properties of oxide promoters in Rh-catalyzed selective synthesis of oxygenates from synthesis gas 

    Prieto, Gonzalo; Concepcion, Patricia; Martinez, Agustin; Mendoza Gómez, Ernesto (2011-06-13)
    Article
    Restricted access - publisher's policy
    A series of 2.5% Rh/M@Al2O3 model catalysts were prepared by supporting Rh on high-area c-Al2O3, resulting in a surface covered by a monolayer (4.5–7 atoms/nm2) of MOx promoter oxides (M = Fe, V,Nb, Ta, Ti, Y, Pr, Nd,Sm). ...
  • Quorum-quenching and matrix-degrading enzymes in multilayer coatings synergistically prevent bacterial biofilm formation on urinary catheters 

    Ivanova, Kristina Dimitrova; Macedo Fernandes, Margarida Maria; Francesko, Antonio; Mendoza Gómez, Ernesto; Tzanov, Tzanko (2015-12-02)
    Article
    Open Access
    Bacteria often colonize in-dwelling medical devices and grow as complex biofilm communities of cells embedded in a self-produced extracellular polymeric matrix, which increases their resistance to antibiotics and the host ...
  • Self-assembly of collagen building blocks guided by electric fields 

    de la Rica, Roberto; Mendoza Gómez, Ernesto; Chow, Lesley W.; Cloyd, Kristy L.; Bertazzo, Sergio; Watkins, Hannah C.; Steele, Joseph A. M.; Stevens, Molly M. (2014-10-01)
    Article
    Restricted access - publisher's policy
    Show me the way: protein building blocks are programmed to assemble hierarchically and yield a defined fiber morphology of micrometric length and precise nanometric diameter. The key step of this method is to align the ...
  • Silicone microreactors for the photocatalytic generation of hydrogen 

    Castedo Rodríguez, Alejandra; Mendoza Gómez, Ernesto; Angurell Purroy, Inmaculada; Llorca Piqué, Jordi (2016-09-15)
    Article
    Open Access
    A silicone microreactor with 500 mu m-width microchannels coated with a Au/TiO2 photocatalyst was manufactured and tested for the photocatalytic generation of hydrogen from gaseous water-ethanol mixtures under dynamic ...
  • Sonochemical coating of textiles with hybrid ZnO/chitosan antimicrobial nanoparticles 

    Petkova Petkova, Petya Stoyanova; Francesko, Antonio; Macedo Fernandes, Margarida Maria; Mendoza Gómez, Ernesto; Perelshtein, Ilana; Aharon, Gedanken; Tzanov, Tzanko (2014-01-09)
    Article
    Restricted access - publisher's policy
    Textiles are good substrates for growth of microorg anisms especially under moisture and temperature conditions found in hospitals. Microbia l shedding from the body occurs continuously at contact of the patient with ...
  • Sonochemical synthesis and stabilization of concentrated antimicrobial silver-chitosan nanoparticle dispersions 

    Francesko, Antonio; Petkova, Petya; Mendoza Gómez, Ernesto; Tzanov, Tzanko; Cano Fossas, Marta; Fernandes, Margarita M. (Wiley, 2017-08)
    Article
    Open Access
    This work reports on a green synthetic route to produce concentrated aqueous dispersions of silver nanoparticles (AgNP) employing high-intensity ultrasound (US) and chitosan (CS) as a non-toxic reducing agent for Ag1 salts ...