Now showing items 1-18 of 18

    • 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
    • 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
      Open Access
      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 ...
    • 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 ...
    • Chitosan microcapsules: methods of the production and use in textile finishing 

      Borges Valle, Jorge Alexandre; Sisqueira Curto Valle, Rita de Cassia; Krause Bierhalz, Andrea Cristiane; Maesta Bezerra, Fabricio; López Hernández, Arianne; Lis Arias, Manuel José (Wiley, 2021-01-13)
      Article
      Open Access
      Biopolymeric chitosan is considered a promising encapsulating agent for tex-tile applications due to its biocompatibility, lack of toxicity, antibacterial activ-ity, high availability, and low cost. After cellulose, it is ...
    • Chitosan patterning on titanium implants 

      Gilabert Chirivella, Eduardo; Perez Feito, Ricardo; Ribeiro, Clarisse; Ribeiro, Sylvie; Correia, Daniela M.; Gonzalez Martin, Maria Luisa; Manero Planella, José María; Lanceros Méndez, Senentxu; Gallego Ferrer, Gloria; Gómez Ribelles, José Luis (2017-10-01)
      Article
      Open Access
      Covenantee:   Universitat Politècnica de València. Centro de Biomateriales e Ingeniería Tisular
      Titanium and its alloys are widely used in medical implants because of their excellent properties. However, bacterial infection is a frequent cause of titanium-based implant failure and also compromises its osseointegration. ...
    • Chitosan-Based Drug Delivery System: Applications in Fish Biotechnology 

      Wu, Yuanbing; Rashidpour, Ania; Almajano Pablos, María Pilar; Meton Teijeiro, Isidoro (Multidisciplinary Digital Publishing Institute (MDPI), 2020-06-01)
      Article
      Open Access
      Chitosan is increasingly used for safe nucleic acid delivery in gene therapy studies, due to well-known properties such as bioadhesion, low toxicity, biodegradability and biocompatibility. Furthermore, chitosan derivatization ...
    • Development of chytosan and hyaluronic acid based bioinks for bioprinting technologies 

      Buxeda Sitjà, Àlex (Universitat Politècnica de Catalunya, 2019-07-08)
      Bachelor thesis
      Open Access
      Covenantee:   Politecnico di Torino
    • Differential neuronal and glial behavior on flat and micro patterned chitosan films 

      Mattotti, Marta; Álvarez Pinto, Zaída; Delgado Muñoz, Luis; Mateos Timoneda, Miguel Ángel; Aparicio, Conrado; Planell Estany, Josep Anton; Alcántara Horrillo, Soledad; Engel López, Elisabeth (2017-10-01)
      Article
      Open Access
      Chitosan is a biodegradable natural polysaccharide that has been widely studied for regenerative purposes in the central nervous system. In this study we assessed the in vitro glial and neuronal cells response to chitosan ...
    • Enzymatic synthesis of a thiolated chitosan-based wound dressing crosslinked with chicoric acid 

      Stefanov, Ivaylo; Hinojosa Caballero, Dolores; Maspoch, Santiago; Hoyo Pérez, Javier; Tzanov, Tzanko (Royal Society of Chemistry (RSC), 2018-10-26)
      Article
      Open Access
      This work describes the enzymatic synthesis of multifunctional hydrogels for chronic wound treatment using thiolated chitosan and the natural polyphenol chicoric acid. Gelation was achieved by ...
    • Heterogenization of copper catalyst for the oxidation of phenol, a common contaminant in industrial wastewater 

      Castro Cevallos, Ursula Isabel; Fortuny Sanromá, Agustín; Stueber, Frank; Fabregat Llangotera, Azael; Font Capafons, Josep; Bengoa, Christophe José (2013-07)
      Article
      Open Access
      Advance oxidation process was employed as a pretreat- ment of industrial wastewater. For this purpose, the use of heavy metals as a catalyst is necessary but also complicated because homogeneous catalysts are difficult ...
    • Influence of chitosan characteristics in the microencapsulation of essential oils 

      Lis Arias, Manuel José; Lopez, Arianne; Vilaseca Vallvé, M. Mercedes; Valles, Betina; Prieto Fuentes, María Remedios; Simó Cima, Mercedes; Borges Valle, Jorge Alexandre; Sisqueira Curto Valle, Rita de Cassia; Maesta Bezerra, Fabricio; Puiggalí Bellalta, Jordi (Springer, 2021-03)
      Article
      Open Access
      The fight against nosocomial infections in hospitals, has promoted the use of microencapsulated essential oils on medical wearing uniforms. These types of microcapsules can be improved with the use of antimicrobial polymers ...
    • Multifunctional ZnO NPs-chitosan-gallic acid hybrid nanocoating to overcome contact lenses associated conditions and discomfort 

      Hoyo Pérez, Javier; Ivanova, Kristina Dimitrova; Guaus Guerrero, Ester; Tzanov, Tzanko (2019-02-13)
      Article
      Open Access
      Contact lenses (CL) provide visual correction but their use may also induce several adverse effects causative of discomfort and conditions that lead to stop or discontinue their use. Discomfort is mainly caused by insufficient ...
    • Quitina y quitosano. Nuevos materiales textiles. 

      Gacén Guillén, Joaquín; Gacén Esbec, Isabel (Instituto de Investigación Textil y Cooperación Industrial, 1996-07)
      Article
      Open Access
      Se describen la quitina y el quitosano que a partir de ella se obtiene, así como las fuentes de las que proceden. Se trata de polimeros naturales transformables en fibras, con campos de aplicación muy interesantes en ...
    • Recovery of neodymium (III) from aqueous phase by chitosan-manganese-ferrite magnetic beads 

      Valverde Durán, Sergio Andrés; Lapo Calderón, Byron Gonzalo; Meneses, Miguel; Sastre Requena, Ana María (2020-06-01)
      Article
      Open Access
      Neodymium is a key rare-earth element applied to modern devices. The purpose of this study is the development of a hybrid biomaterial based on chitosan (CS) and manganese ferrite (MF) for the recovery of Nd(III) ions from ...
    • Sorption of Hg(II) and Pb(II) ions on chitosan-iron(III) from aqueous solutions: Single and binary systems 

      Lapo, Byron; Demey Cedeño, Hary; Zapata, Jessenia; Romero, Cristhian; Sastre Requena, Ana María (Multidisciplinary Digital Publishing Institute (MDPI), 2018-03-25)
      Article
      Open Access
      The present work describes the study of mercury Hg(II) and lead Pb(II) removal in single and binary component systems into easily prepared chitosan-iron(III) bio-composite beads. Scanning electron microscopy and energy-dispersive ...
    • Synthesis of magnetic CMC bionanocomposite containing a novel biodegradable nanoporous polyamide selectively synthesized in ionic liquid as green media: Investigation on Nd+3, Tb+3, and Dy+3 rare earth elements adsorption 

      Javadian, Hamedreza; Ruiz Planas, Montserrat; Taghavi, Mehdi; Sastre Requena, Ana María (2020-06-15)
      Article
      Restricted access - publisher's policy
      In this research study, the carboxymethyl chitosan/poly(pyrimidine-thiophene-amide)/Ni0.2Zn0.2Fe2.6O4 (CMC/P(PTA)/Ni0.2Zn0.2Fe2.6O4) was prepared as a novel magnetic bionanocomposite adsorbent. FE-SEM, EDX, NMR, XRD, FT-IR, ...
    • The administration of chitosan-tripolyphosphate-DNA nanoparticles to express exogenous SREBP1a enhances conversion of dietary carbohydrates into lipids in the liver of Sparus aurata 

      Silva Marrero, Jonas I.; Villasante Dueñas, Juliana; Rashidpour, Ania; Almajano Pablos, María Pilar (2019-08-01)
      Article
      Open Access
      In addition to being essential for the transcription of genes involved in cellular lipogenesis, increasing evidence associates sterol regulatory element binding proteins (SREBPs) with the transcriptional control of ...