Now showing items 1-20 of 73

    • A fungal ascorbate oxidase with unexpected laccase activity 

      Braunschmid, Verena; Fuerst, Sarah; Perz, veronika; Zitzenbacher, Sabine; Hoyo Pérez, Javier; Fernandez Sanchez, Cesar; Tzanov, Tzanko; Steinkellner, Georg; Gruber, Karl; Nyanhongo, Gibson S.; Ribitsch, Doris; Guebitz, Georg (2020-08-11)
      Article
      Open Access
      Ascorbate oxidases are an enzyme group that has not been explored to a large extent. So far, mainly ascorbate oxidases from plants and only a few from fungi have been described. Although ascorbate oxidases belong to the ...
    • A new approach to produce plant antioxidants-loaded chitosan for medical applications 

      Rocasalbas Lozano, Guillem; Touriño Eirín, Sonia; Tzanov, Tzanko; Torres, Josep Lluís (2012-12-19)
      Article
      Restricted access - publisher's policy
      This work reports a straightforward approach for incorporation of plant-derived flavonoid-based antioxidants into an intrinsically antimicrobial chitosan platform in order to generate chitosan-based materials suitable for ...
    • A potential lignocellulosic biomass based on banana waste for critical rare earths recovery from aqueous solutions 

      Lapo Calderón, Byron Gonzalo; Bou Serra, Jordi; Hoyo Pérez, Javier; Tzanov, Tzanko; Carrillo, Manuel; Peña, Karina; Sastre Requena, Ana María (2020-04-29)
      Article
      Restricted access - publisher's policy
      Rare earth elements (REE) present multiple applications in technological devices but also drawbacks (scarcity and water contaminant). The current study aims to valorise the banana wastes - banana rachis (BR), banana ...
    • Antibacterial coatings on medical devices 

      Ivanova, Kristina Dimitrova; Bassegoda Puigdomenech, Arnau; Tzanov, Tzanko (Elsevier, 2017-11-02)
      Part of book or chapter of book
      Restricted access - publisher's policy
    • Antibacterial polyurethane foams with incorporated lignin-capped silver nanoparticles for chronic wound treatment 

      Morena Gatius, Ángela Gala; Ivanova, Kristina Dimitrova; Pérez Rafael, Silvia; Sánchez Soto, Miguel; Tzanov, Tzanko (2020-02-26)
      Article
      Open Access
      Lignin-capped silver nanoparticles were incorporated in situ into polyurethane foams during their polymerization to obtain multifunctional materials suitable for chronic wound dressing. Lignin with increased phenolic ...
    • Antibiofilm poly(carboxybetaine methacrylate) hydrogels for chronic wounds dressings 

      Ruseva, Konstans; Ivanova, Kristina Dimitrova; Todorova, Katerina; Vladov, Ivelin; Nanev, Vesselin; Tzanov, Tzanko; Hinojosa-Caballero, Dolores; Argirova, Maya; Vassileva, Elena (Elsevier, 2020-04-12)
      Article
      Restricted access - publisher's policy
      The current study demonstrates the benefits of poly(carboxybetaine methacrylate) hydrogels in chronic wound healing. These hydrogels demonstrate high absorbing capacity upon swelling in salt solutions thus revealing great ...
    • Antibody-enabled antimicrobial nanocapsules for selective elimination of Staphylococcus aureus 

      Ivanova, Kristina Dimitrova; Asenova Ivanova, Aleksandra; Ramon Portés, Eva; Hoyo Pérez, Javier; Sanchez-Gomez, Susana; Tzanov, Tzanko (2020-07-16)
      Article
      Open Access
      Targeted bactericide nanosystems hold significant promise to improve the efficacy of existing antimicrobials for treatment of severe bacterial infections, minimizing the side effects and lowering the risk of antibiotic ...
    • Antimicrobial lightweight materials and components 

      Morena Gatius, Ángela Gala; Ferreres Cabanes, Guillem; Ivanova, Kristina Dimitrova; Pérez Rafael, Silvia; Tzanov, Tzanko (Elsevier, 2020-12-02)
      Part of book or chapter of book
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      Lightweight materials and components have gained remarkable scientific and technological importance in the recent times as the main drivers of innovation. They are finding widespread use across all industry sectors to ...
    • Bacteria-responsive multilayer coatings comprising polycationic nanospheres for bacteria biofilm prevention on urinary catheters 

      Francesko, Antonio; Macedo Fernandes, Margarida Maria; Ivanova, Kristina Dimitrova; Tzanov, Tzanko (2016-01-21)
      Article
      Open Access
      This work reports on the development of infection-preventive coatings on silicone urinary catheters that contain in their structure and release on demand antibacterial polycationic nanospheres. Polycationic aminocellulose ...
    • Bio-sonochemical conversion of fish backbones into bioactive nanospheres 

      Macedo Fernandes, Margarida Maria; Rivera Rodríguez, Diana Marcela; Tzanov, Tzanko; Rommi, Katariina; Lantto, Raija; Mozuraityte, Revilija; Šližyte, Rasa (2015-08-12)
      Article
      Open Access
      Covenantee:   SINTEF Fisheries and Aquaculture / VTT Technical Research Centre of Finland
      Salmon backbones, co-streams of salmon processing industry, were transformed into stable, odour-free ingredients for cosmetics. First, the backbones were hydrolysed using commercial proteases (Bromelain + Papain, Trypsin, ...
    • Biocompounds from rapeseed oil industry co-stream as active ingredients for skin care applications 

      Rivera Rodríguez, Diana Marcela; Rommi, Katariina; Macedo Fernandes, Margarida Maria; Lantto, Raija; Tzanov, Tzanko (2015-10-01)
      Article
      Open Access
      OBJECTIVE: Despite the great number of substances produced by the skincare industry, very few of them seem to truly have an effect on the skin. Therefore, given the social implications surrounding physical appearance, the ...
    • Biomedical textiles 

      Stefanov, Ivaylo; Bassegoda Puigdomenech, Arnau; Tzanov, Tzanko (Elsevier, 2019-07-01)
      Part of book or chapter of book
      Restricted access - publisher's policy
      The use of textiles in medicine dates back to ancient times. In modern medicine, textile fibers can be found in a wide variety of biomedical devices from simple non-woven bandages for wounds to complex hollow fiber membranes ...
    • Biotechnological applications at GBMI: industry-driven "bio-research" 

      Garriga Solé, Pere; Tzanov, Tzanko (Campus de Terrassa de la UPC, 2013-06-13)
      Conference report
      Open Access
    • 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 ...
    • Chitosan and chitosan ZnO-based complex nanoparticles: formation, characterization, and antibacterial activity 

      Perelshtein, Ilana; Ruderman, Yelena; Perkas, Nina; Tzanov, Tzanko; Beddow, Jamie; Joyce, Eadaoin; Mason, Timothy J.; Blanes, María; Mollá, Korina; Patlolla, Anitha; Frenkel, Anatoly I.; Gedanken, Aharon (Royal Society of Chemistry, 2013-02-04)
      Article
      Restricted access - publisher's policy
    • Durable antimicrobial cotton textiles coated sonochemically with ZnO nanoparticles embedded in an in-situ enzymatically generated bioadhesive 

      Salat, Marc; Petkova, Petya; Hoyo Pérez, Javier; Perelshtein, Ilana; Gedanken, Aharon; Tzanov, Tzanko (2018-02-14)
      Article
      Open Access
      An important preventive measure for providing a bacteria-free environment for the patients is the introduction of highly efficient and durable antibacterial textiles in hospitals. This work describes a single step ...
    • Effect of thiol-functionalisation on chitosan antibacterial activity: interaction with a bacterial membrane model 

      Macedo Fernandes, Margarida Maria; Francesko, Antonio; Torrent Burgués, Juan; Tzanov, Tzanko (2013-01-12)
      Article
      Restricted access - publisher's policy
      The antibacterial activity of chitosan modified with the thiol-containing 2-iminothiolane HCl (TC-IMI) and N-acetyl- L -cysteine (TC-NAC) was studied by Langmuir film balance technique using a dipalmitoylphos- phatidylglycerol ...
    • Effects of alkyl chain lengths of gallates upon enzymatic wool functionalisation 

      Gaffar Hossain, Kh. M.; Díaz González, María; Dagá Monmany, José María; Tzanov, Tzanko (2010-08-24)
      Article
      Restricted access - publisher's policy
      The covalent grafting of alkyl gallates on wool through a laccase catalysed reaction in 80/20 (v/v, %)aqueous–ethanol mixture provided in a one-step process a multifunctional textile material with antioxidant, antibacterial ...
    • Electrical evaluation of bacterial virulence factors using nanopores 

      Escosura Muñiz, Alfredo de la; Ivanova, Kristina Dimitrova; Tzanov, Tzanko (2019-03-19)
      Article
      Open Access
      In this work, we propose a novel methodology for electrical monitoring using nanoporous alumina membranes of virulence factors secreted by bacterial pathogens. Bacterial hyaluronidase (HYAL), which is produced by a number ...