Now showing items 1-20 of 21

  • A facile and green method to hydrophobize films of cellulose nanofibrils and silica by laccase-mediated coupling of nonpolar colloidal particles 

    Cusola Aumedes, Oriol; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa; Rojas, Orlando J. (2014-10-01)
    Article
    Restricted access - publisher's policy
    Hydrophobic particles based on dodecyl 3,4,5-trihydroxybenzoate (LG) were coupled onto the surface of cellulose nanofibrils (CNFs) and silica by treatment with a multicomponent colloidal system (MCS) derived from the ...
  • Application of surface enzyme treatments using laccase and a hydrophobic compound to paper-based media 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2013-01-11)
    Article
    Restricted access - publisher's policy
    A new approach for the hydrophobization of finished cellulosic substrates based on a previously reported enzymatic technique is proposed. Commercial finished paper was hydrophobized by using laccase from Trametes villosa ...
  • Bacterial cellulose for increasing barrier properties of paper products 

    Fillat Latorre, Amanda; Martinez, Josefina; Valls Vidal, Cristina; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa; Valenzuela, Susana V.; Diaz Lucea, M. Pilar; Pastor Blasco, Francisco Ignacio Javier (2018-08-07)
    Article
    Restricted access - publisher's policy
    Bacterial cellulose was combined with wood cellulose papers in order to obtain biomaterials with increased barrier properties. For this purpose, different parameters were assessed: two producing bacterial strains ...
  • Biorefinery: the paper mill of tomorrow 

    Vidal Lluciá, Teresa; Torres López, Antonio Luis; Valls Vidal, Cristina; Cusola Aumedes, Oriol; Quintana, Elisabet; Andreu Terrén, Glòria; Aracri, Elisabetta; Fillat Latorre, Amanda; García Ubasart, Jordi; Beltramino, Facundo; Clemente Escuin, Antonio; Roncero Vivero, María Blanca (Campus de Terrassa de la UPC, 2013-06-13)
    Conference report
    Open Access
  • Coating of laccase-activated phenols for the industrially-feasible functionalization of cellulose-based substrates 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014)
    Conference lecture
    Restricted access - publisher's policy
    The present work describes an innovative method for the hydrophobization of cellulosic material by impregnation with an enzymatically obtained functionalization solution (FS). Application of FS to the surface of previously ...
  • Conferring antioxidant capacity to cellulose based materials by using enzymatically-modified products 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2015-05-30)
    Article
    Open Access
    A new, industrially feasible method for conferring cellulosic substrates antioxidant properties by using enzymatic products was developed. The method allows cellulose surfaces such as those of paper sheets to be conferred ...
  • Cyclodextrin functionalization of several cellulosic substrates for prolonged release of antibacterial agents 

    Cusola Aumedes, Oriol; Tabary, Nicolas; Naceur Belgacem, Mohamed; Bras, Julien (Wiley InterScience, 2012-11-13)
    Article
    Restricted access - publisher's policy
    Several cellulosic substrates have been surface-functionalized with cyclomaltoheptaose (b-cyclodextrin, b-CD) using citric acid as a crosslinker agent to obtain new surface-modified materials able to release antiseptic ...
  • Developing antioxidant capacity to cellulose-based materials by using enzymatically-modified products 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2015)
    Conference lecture
    Restricted access - publisher's policy
    In the present work various laccases (Lac) and different phenolic compounds potentially possessing antioxidant action were used in an enzymatic reaction to prepare several functionalization solutions (FS), which were then ...
  • Effect of the laccase mediator system on the fibre properties of TCF bleached kraft pulp 

    Cadena Chamorro, Edith Marleny; Cusola Aumedes, Oriol; Vidal Lluciá, Teresa; Torres López, Antonio Luis (2011)
    Conference report
    Restricted access - publisher's policy
    The application of the laccase mediator system (L stage) to TCF bleached pulp from Eucalyptus globulus with a low residual lignin content provides useful information about its effect in the hexenuronic acids content, ...
  • Electrochemical insights on the hydrophobicity of cellulose substrates imparted by the enzymatically-oxidized gallates with increasing alkyl chain length 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Tzanov, Tzanko; Roncero Vivero, María Blanca (2015-06-09)
    Article
    Open Access
    In this work, we studied the influence of the alkyl chain length in enzymatically-oxidized gallates on the development of hydrophobicity on paper-based materials, and further correlated the obtained effect to the redox ...
  • Elucidating the chemical nature of laccase-modified alkyl gallates 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (Universidade de Aveiro, 2018)
    Conference lecture
    Restricted access - publisher's policy
    In the present work we investigated the chemical changes undergone by enzyme-oxidized lauryl gallate (LG, dodecyl 3,4,5,-trihydroxybenzoate) by using Fourier transform infrared (FTIR) spectroscopy, and an oxidation mechanism ...
  • Enzymatic treatments of paper surface using laccase, hydrophobic compounds and lignin 

    Cusola Aumedes, Oriol; Roncero Vivero, María Blanca; García Ubasart, Jordi; Valls Vidal, Cristina (2011)
    Conference report
    Restricted access - publisher's policy
    This study demonstrates the potential of applying surface enzymatic treatments on finished paper sheets to improve their physical characteristics. Research studies have recently reported that is possible to internally size ...
  • Functionalization of cellulosic model substrates via laccase-mediated coupling of non-polar particles 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca; Rojas, Orlando J. (2014)
    Conference report
    Restricted access - publisher's policy
    In the present work we investigate the physicochemical interactions between silica and nanofibrillar cellulose (CNF) with a multi component system (MCS) obtained from an enzymatic reaction of a laccase enzyme and a short-chain ...
  • Functionalization of cellulosic substrates using a product derived from an enzymatic reaction 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2013)
    Conference report
    Restricted access - publisher's policy
    The present work describes a new method for the surface functionalization of cellulosic sheets, overcoming the limitations of the traditional treatments, which are usually performed using fibrous suspensions. The method ...
  • Paper functionalization by means of enzymatic surface treatments using hydrophobic compounds and lignosulfonates 

    Cusola Aumedes, Oriol; García Ubasart, Jordi; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2012)
    Conference report
    Restricted access - publisher's policy
    In the present work an innovative method for achieving enzymatic surface functionalization on finished paper sheets is presented. A commercial filter paper was surface sized with laccase derived from Trametes Villosa, ...
  • Particulate coatings via evaporation-induced self-assembly of polydisperse colloidal lignin on solid interfaces 

    Cusola Aumedes, Oriol; Kivistö, Samu; Vierros, Sampsa; Batys, Piotr; Ago, Mariko; Tardy, Blaise L.; Greca, Luiz G.; Roncero Vivero, María Blanca; Sammalkorpi, Maria; Rojas, Orlando J. (2018-05-02)
    Article
    Restricted access - publisher's policy
    Polydisperse smooth and spherical biocolloidal particles were suspended in aqueous media and allowed to consolidate via evaporation-induced self-assembly. The stratification of the particles at the solid–air interface was ...
  • Potencial de la celulosa en la construcción de nuevos materiales 

    Vidal Lluciá, Teresa; Torres López, Antonio Luis; Valls Vidal, Cristina; Cusola Aumedes, Oriol; López Martínez, Joan Antoni; Fernández Santos, Julia; Clemente Escuin, Antonio; Roncero Vivero, María Blanca (OmniaScience, 2019-01-31)
    Conference report
    Open Access
    Actualmente, más de una tercera parte de los tipos de papeles que hoy empleamos son para nuevos usos que hace diez años no existían. Además, la demanda creciente de productos basados en materias primas renovables y la ...
  • Potencial de la celulosa en la construcción de nuevos materiales 

    Vidal Lluciá, Teresa; Torres López, Antonio Luis; Valls Vidal, Cristina; Cusola Aumedes, Oriol; López Martínez, Joan Antoni; Fernández Santos, Julia; Clemente Escuin, Antonio; Roncero Vivero, María Blanca; Casals Terré, Jasmina; Farré Lladós, Josep (2019)
    Conference report
    Open Access
    Actualmente, más de una tercera parte de los tipos de papeles que hoy empleamos son para nuevos usos que hace diez años no existían. Además, la demanda creciente de productos basados en materias primas renovables y la ...
  • Rapid functionalisation of cellulose-based materials using a mixture containing laccase activated lauryl gallate and sulfonated lignin 

    Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2014-01-11)
    Article
    Restricted access - publisher's policy
    An innovative method has been developed for the surface hydrophobisation of cellulose-based materials by coating it with a functionalised solution (FS), in which sonicated lauryl gallate (LG, dodecyl 3,4,5,-trihydroxybenzoate), ...
  • Surface functionalization of cellulosic substrates by using chemical and biotechnological methods 

    Cusola Aumedes, Oriol (Universitat Politècnica de Catalunya, 2013-12-20)
    Doctoral thesis
    Open Access
    This thesis deals with the surface modification of cellulosic substrates by use of chemo-enzymatic methods. Functionalizing cellulose is intended to adjust its properties for various purposes, but particularly for obtaining ...