Browsing by Subject "Biopolymers"

Now showing items 1-20 of 127

    • Advanced functional hydrogel biomaterials based on dynamic B-O bonds and polysaccharide building blocks 

      Aeridou, Eleni; Díaz Díaz, David; Alemán Llansó, Carlos; Pérez Madrigal, Maria del Mar (2020-10-12)
      Article
      Open Access
      Dynamic covalent chemistry applied to polymers has attracted significant attention over the past decade. Within this area, this review highlights the recent research on polysaccharide-based hydrogels cross-linked by boronic ...

    • Aerogeles compuestos multicapa a partir de biopolimeros y arcilla 

      Sánchez Soto, Miguel; Cruz Jesús, Lucía Guadalupe de la; Jokinen, Paul; Abt, Tobias Martin; Cailloux, Jonathan; Maspoch Rulduà, Mª Lluïsa; Santana Pérez, Orlando Onofre (2019-10-15)
      Article
      Open Access
      En este trabajo se han desarrollado diferentes aerogeles con baja flamabilidad basados en la combinación de biopolimeros renovables y montmorillonta (MMT). Los compuestos fueron hechos usando agua como solvente y siguiendo ...

    • Amino acid-based poly(ester amide) nanofibers for tailored enzymatic degradation prepared by miniemulsion-electrospinning 

      Murase Fernández, Sara Keiko; Kaltbeitzel, A; Landfester, K; Valle Mendoza, Luis Javier del; Katsarava, Ramaz; Puiggalí Bellalta, Jordi; Crespy, D (2015-01-01)
      Article
      Open Access
      Novel enzyme loaded scaffolds with enzyme-responsive degradable properties for drug delivery are prepared by an original inverse-miniemulsion electrospinning method. Miniemulsions with aqueous nanodroplets containing ...

    • An investigation on the effect of pressure and temperature on microcellular foams of Poly(lactic) acid (PLA)/Acrylonitrile-Butadiene-Styrene (ABS) binary blends 

      Kamrani Moghadam, Mohammad Reza; Sánchez Soto, Miguel (Springer, 2020-05-30)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Reducing the weight of petrol-derived plastics is a common way to decrease the environmental impact of several products. Another option consist in using biopolymers instead. However, most of the times, the complete ...

    • Análisis de propiedades de recubrimientos biodegradables 

      Valero Moreno, José Ignacio (Universitat Politècnica de Catalunya, 2018-06-29)
      Master thesis
      Restricted access - confidentiality agreement
      El objetivo del presente proyecto es mejorar las propiedades de barrera al vapor de agua y al agua líquida de un soporte en base papel mediante la aplicación de un novedoso recubrimiento biodegradable de ácido poliláctico. El ...

    • 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; Stefanov, Ivaylo (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 ...

    • Antimicrobial PHAs coatings for solid and porous tantalum implants 

      Rodríguez Contreras, Alejandra María; Guillem Martí, Jordi; Manero Planella, José María; Rupérez de Gracia, Elisa (2019-10-01)
      Article
      Open Access
      Biomaterial-associated infections (BAI) are the major cause of failure of indwelling medical devices. The risk of BAI can end dramatically in the surgical removal of the affected device. Therefore, a major effort must be ...

    • Antimony removal from water by a chitosan-Iron(III)[ChiFer(III)] biocomposite 

      Lapo, Byron; Demey Cedeño, Hary; Carchi, Tany; Sastre Requena, Ana María (Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-01)
      Article
      Open Access
      The presence of antimony(III) in water represents a worldwide concern, mainly due to its high toxicity and carcinogenicity potential. It can be separated from water by the use of sustainable biopolymers such as chitosan ...

    • Aplicación de biopolímeros a tejidos: el quitosano 

      Golán Mascaró, Júlia (Universitat Politècnica de Catalunya, 2016-10-27)
      Bachelor thesis
      Open Access

    • Avaluació de la DBO per disminució de la pressió parcial. Aplicació a l’estudi de la biodegradació 

      Moré Ollé, Pau (Universitat Politècnica de Catalunya, 2014-09)
      Master thesis (pre-Bologna period)
      Open Access
      El consum de plàstics a les societats actuals representa un elevat volum de residus recalcitrants. La investigació en polímers biodegradables es planteja com una alternativa viable per disminuir l’impacte ambiental d’aquests ...

    • Beta-cyclodextrines in textile industry 

      Lis Arias, Manuel José (2020-09-02)
      Part of book or chapter of book
      Open Access
      ß-Cyclodextrin (ß-CD) is an oligosaccharide composed of seven units of D-(+)-glucopyranose joined by a- 1,4 bonds, which is obtained from starch. Its singular trunk conical shape organization, with a well-defined cavity, ...

    • Bioactive edible films based on arrowroot starch incorporated with cranberry powder: microstructure, thermal properties, ascorbic acid content and sensory analysis 

      Matta Fakhouri, Farayde; Ferreira Nogueira, Gislaine; Oliveira, Rafael Augustus de; Velasco Perero, José Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2019-10-11)
      Article
      Open Access
      The growing global awareness about environmental preservation has stimulated the search for alternatives to replace conventional plastics made from fossil sources. One of the advantages is using polymers from renewable ...

    • Biofunctionalization of biocompatible polymeric surfaces with cell-adhesive peptides 

      Mauchauffe, Rodolphe (Universitat Politècnica de Catalunya, 2011-02)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El presente proyecto propone el estudio de la funcionalización superficial de polímeros biocompatibles con la molécula elastin-like polymers (ELP), la cual contiene la secuencia aminoacidica de adhesión celular RGD ...

    • Bionanocomposites based on 3-hydroxybutyrate-co-3-hydroxyvalerate (PHBV) and cellulose nanowhiskers (CNWs) 

      Wang, Zhengyu (Universitat Politècnica de Catalunya, 2016-07-09)
      Bachelor thesis
      Open Access
      Over the past decade, bio-based polymers, especially in packaging, have gained a bigger role due to the over consuming of petrol derivates and the gradually growing concerns relating environment and sustainability issues. ...

    • Biopolyester (PHB) obtaining by fermentation of Ralstonia eutropha 

      Soldado López, Carles (Universitat Politècnica de Catalunya, 2012-09)
      Master thesis
      Restricted access - author's decision
      Nowadays, the dependence that our society has to non-biodegradable plastics derived from petroleum has created the necessity to develop an economically viable alternative. Biopolymers seem to be an attractive alternative ...

    • Bioproduction of Poly-3-Hydroxybutyrate and Study for a Specific Genetic Application 

      Miranda-de Sousa Dias, Miguel (Universitat Politècnica de Catalunya, 2011-06)
      Master thesis
      Restricted access - author's decision
      The serious ambient problems from the wide plastic use had made the scientific community suggest the substitution of conventional plastics for biodegradable ones. Polyhydroxyalcanoats (PHAs) are biopolyesters produced from ...

    • Biphasic polylactide/polyamide 6,10 blends: Influence of composition on polyamide structure and polyester crystallization 

      Keridou, Ina; Cailloux, Jonathan; Santana Pérez, Orlando Onofre; Maspoch Rulduà, Mª Lluïsa; Puiggalí Bellalta, Jordi; Franco García, María Lourdes; Martínez Guil, Juan Carlos (Elsevier, 2020-08-12)
      Article
      Open Access
      Blends with different ratios of polylactide and polyamide 6,10 (PA610) have been prepared by melt-mixing using a Brabender mixer equipment. Previously, a rheologically modified polylactide (PLAREx) was obtained through ...

    • 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 ...

    • Bread preservation with use of edible packaging 

      Silva Souza, Viviane; Matta Fakhouri, Farayde; Arias Angulo, Luna Valentina; Aguiar, Rosa Helena; Augustus de Oliveira, Rafael (Universitat Politècnica de València, 2018)
      Conference report
      Open Access
      We live in a world that usually use plastic bags either to go shopping or to pack the snack for a short trip. However, packaging makes life easier and serves as protection for products such as food. Bread is a common food ...

    • 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 ...