Ara es mostren els items 1-20 de 20

    • A new approach to the internal sizing of paper via biotechnological processes 

      García Ubasart, Jordi; Roncero Vivero, María Blanca; Vidal Lluciá, Teresa (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work deals with the study of a new biotechnological procedure, employing laccase in combination with hydrophobic compounds, for the biomodification of fibres and the internal sizing of paper. Cellulose fibres from ...
    • Alternative chemo-enzymatic treatment for homogeneous and heterogeneous acetylation of wood fibers 

      Quintana, Elisabet; Ago, Mariko; Valls Vidal, Cristina; Roncero Vivero, María Blanca; Rojas, Orlando J. (2018-07-18)
      Article
      Accés obert
      A new chemo-enzymatic treatment is proposed to produce cellulosic fibers suitable for heterogeneous- or homogeneous-phase acetylation. The procedure included enzymatic (laccase–violuric acid) lignin removal from the precursor ...
    • Aprovechamiento de un residuo papelero para la obtención de nanocelulosa 

      Huete Matute, Noemi; Roncero Vivero, María Blanca (OmniaScience, 2021-02-01)
      Comunicació de congrés
      Accés obert
      La constante búsqueda de mejoras productivas en la industria papelera y la creciente concienciación de la sociedad por los problemas derivados del uso de materiales procedentes de la industria petroquímica, hace que ...
    • 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
      Accés obert
      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 ...
    • Bacterial cellulose-chitosan paper with antimicrobial and antioxidant activities 

      Cabañas Romero, L. Verónica; Valls Vidal, Cristina; Valenzuela, Susana V.; Roncero Vivero, María Blanca; Javier Pastor, F.I.; Diaz Lucea, M. Pilar; Martínez Martínez, Josefina (2020-03-12)
      Article
      Accés obert
      The production of paper-based bacterial cellulose-chitosan (BC-Ch) nanocomposites was accomplished following two different approaches. In the first, BC paper sheets were produced and then immersed in an aqueous solution ...
    • 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)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      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 ...
    • Composites of cellulose nanocrystals in combination with either cellulose nanofibril or carboxymethylcellulose as functional packaging films 

      Fernández Santos, Julia; Valls Vidal, Cristina; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca (Elsevier, 2022-06-30)
      Article
      Accés obert
      Cellulose nanocrystals (CNC) were mixed with either cellulose nanofibril (CNF) or carboxymethylcellulose (CMC) in variable proportions (0/100, 20/80, 40/60, 50/50, 60/40, 80/20 and 100/0) to obtain cast films with acceptable ...
    • Enhanced fully cellulose based forward and reverse blood typing assay 

      Casals Terré, Jasmina; Farré Lladós, Josep; López Martínez, Joan Antoni; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2019-05-07)
      Article
      Accés obert
      This study presents an enhanced paper-based analytical device (PAD) for forward and reverse group blood typing. The proposed PAD uses a novel methodology, which provides highly reliable results on a fully cellulose based ...
    • Estudi d'aplicació de la lignina: d’un residu a un producte d’alt valor afegit 

      Vera Fernández, Marc (Universitat Politècnica de Catalunya, 2016-06)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      La lignina és un polímer que constitueix un dels principals components dels vegetals, en concret els fusters, la seva funció principal dins de la planta és de protecció física (proporciona rigidesa) i protecció química ...
    • Estudio del potencial del cáñamo para la obtención de nuevos productos 

      Capponi, Florencia (Universitat Politècnica de Catalunya, 2022-01-31)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
    • Evaluating the potential of ozone in creating functional groups on cellulose 

      Valls Vidal, Cristina; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca (Springer, 2022-08-01)
      Article
      Accés obert
      Several eucalyptus pulps (85% of cellulose) with different lignin and HexA content (unbleached, TCF and ECF) as well as cotton linters (97% of cellulose) were treated with ozone (at different pH and ozone doses) in order ...
    • Ionic liquid, ultrasound-assisted synthesis of lignin nanoparticles for barrier-enhanced all-cellulose nanocomposite films 

      Amini, Elahe; Valls Vidal, Cristina; Roncero Vivero, María Blanca (Springer Nature, 2023-10-05)
      Article
      Accés obert
      The primary purpose of this work was to develop novel all-cellulose nanocomposite (ACNC) films by following a green approach that uses an ionic liquid as solvent and requires no additional reducing agents or stabilizers. ...
    • Ionic liquids-assisted bioconversion of lignocellulosic biomass for the development of value-added products 

      Amini, Elahe; Valls Vidal, Cristina; Roncero Vivero, María Blanca (2021-10-11)
      Article
      Accés obert
      Lignocellulosic biomass is the most abundant renewable and inexpensive source that can be used to produce biofuels and bioproducts. One of the major limitations of biomass valorisation is its recalcitrance to an efficient ...
    • Lignin particles for multifunctional membranes, antioxidative microfiltration, patterning and 3D structuring 

      Cusola Aumedes, Oriol; Rojas, Orlando J.; Roncero Vivero, María Blanca (2019-11-08)
      Article
      Accés obert
      We introduce a new type of particle-based membrane based on the combination of lignin particles (LPs) and cellulose nanofibrils (CNF), the latter of which are introduced in small volume fractions to act as networking and ...
    • Natural additives to enhance the barrier properties of nanocellulose films 

      Fernández Santos, Julia; Valls Vidal, Cristina; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca (2022)
      Comunicació de congrés
      Accés obert
      Finding alternatives to fossil-based materials is one of the most important challenges of our time. Since cellulose is the most abundant natural polymer on the planet, its use to solve this challenge would be ideal. In the ...
    • 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)
      Text en actes de congrés
      Accés obert
      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 ...
    • Silver-nanoparticle-impregnated cellulose nanofiber coating for packaging paper 

      Amini, Elahe; Azadfallah, Mohammad (2016-01-09)
      Article
      Accés restringit per política de l'editorial
      In this study, antimicrobial packaging was prepared by mixing colloidal silver nanoparticles with cellulose nanofiber (CNF) and depositing this hybrid coating (CNF/Ag) as a layer on different paper substrates. The CNF/Ag-coated ...
    • The role of xylanases and laccases on hexenuronic acid and lignin removal 

      Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2010-03)
      Article
      Accés restringit per política de l'editorial
    • Transformation of a waste from the paper industry into a nanocellulosic material 

      Huete Matute, Noemi; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca (2022)
      Comunicació de congrés
      Accés obert
      The constant search for productive improvements in the paper industry and the growing awareness of society about the problems derived from the use of fossil-based materials, are pushing the research efforts towards the ...
    • Using unbleached bagasse fibers for fabricating magnetic paper 

      Azadfallah, Mohammad; Gilan, Kajal Moradian; Mousavipazhouh, Hasan; Amini, Elahe; Hadilam, Mohammad Mahdi (2015)
      Article
      Accés obert
      Magnetic lignocellulosic fibers have good potential in applications such as information storage, security papers, electromagnetic shielding and etc. In this study unbleached bagasse fibers were used to fabricate magnetic ...