Now showing items 1-18 of 18

    • Antimicrobial activity of poly(ester urea) electrospun fibers loaded with bacteriophages 

      Díaz Andrade, Angélica María; Valle Mendoza, Luis Javier del; Rodrigo Arcay, Noel; Casas Becerra, María Teresa; Chumburizge, G; Katsarava, Ramaz; Puiggalí Bellalta, Jorge (2018-06-01)
      Article
      Open Access
      The capacity to load bacteriophages into electrospun nanofibers of two representative biocompatible polymers has been evaluated, paying special attention to the possibility of preserving their antibacterial activity. ...
    • Confinement of a ß-barrel protein in nanoperforated free-standing nanomembranes for ion transport 

      Puiggalí Jou, Anna; Pérez Madrigal, Maria del Mar; Valle Mendoza, Luis Javier del; Armelín Diggroc, Elaine Aparecida; Casas Becerra, María Teresa; Michaux, Catherine; Perpete, Eric; Estrany Coda, Francesc; Alemán Llansó, Carlos (2016-10-14)
      Article
      Open Access
      Bioinspired free-standing nanomembranes (FSNMs) for selective ion transport have been tailored by immobilizing the Omp2a ß-barrel membrane protein inside nanoperforations created in flexible poly(lactic acid) (PLA) ...
    • Controlling the morphology of poly(N -cyanoethylpyrrole) 

      Fabregat Jové, Georgina; Alemán Llansó, Carlos; Casas Becerra, María Teresa; Armelín Diggroc, Elaine Aparecida (2012-04-26)
      Article
      Restricted access - publisher's policy
      The morphology of poly(N-cyanoethylpyrrole) has been controlled through the polymerization process. This polymer has been prepared by anodic polymerization, chemical oxidative polymerization in emulsion medium, and ...
    • Crystalline structures and structural transitions of copolyamides derived from 1,4-diaminobutane and different ratios of glutaric and azelaic acids 

      Olmo, Cristian; Casas Becerra, María Teresa; Martínez Guil, Juan Carlos; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-01)
      Article
      Open Access
      Copolyamides derived from even 1,4-butanediamine and different mixtures of odd dicarboxylic acids with a great difference in the number of methylene groups (i.e., glutaric and azelaic acids with 3 and 7 groups, respectively) ...
    • Hybrid polythiophene-clay exfoliated nanocomposites for ultracapacitor devices 

      Aradilla Zapata, David; Azambuja, Denise S.; Estrany Coda, Francesc; Casas Becerra, María Teresa; Ferreira, Carlos A.; Alemán Llansó, Carlos (2012-06-14)
      Article
      Restricted access - publisher's policy
      Exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT) and montmorillonite (MMT) have been prepared by in situ anodic polymerization, concentrations of clay ranging from 5% w/w to 50% w/w being included ...
    • Journal of Materials Chemistry C 

      El-Hachemi, Zoubir; Escudero, Carlos; Acosta-Reyes, Francisco; Casas Becerra, María Teresa; Aloni, Shaul; Oncins, Gerard; Sorrenti, Alessandro; Crusats, Joaquim; Ribó Trujillo, Josep M.; Campos López, Josefina de Lourdes (Royal Society of Chemistry, 2013-03-28)
      Article
      Open Access
      The structure of the meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) J-aggregates could be determined by X-ray and electron diffraction methods. A sheet-like architecture reveals the relationship between structure and ...
    • Micro-molding with ultrasonic vibration energy: New method to disperse nanoclays in polymer matrices 

      Planellas Oates, Marc; Sacristan, Matias; Rey, Lorena; Olmo, Cristian; Aymami Bofarull, Juan; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2014-07)
      Article
      Restricted access - publisher's policy
      Ultrasound technology was proved as an efficient processing technique to obtain micro-molded specimens of polylactide (PLA) and polybutylene succinate (PBS), which were selected as examples of biodegradable polyesters ...
    • Mineralization of DNA into nanoparticles of hydroxyapatite 

      Bertran Cànovas, Òscar; Valle Mendoza, Luis Javier del; Revilla López, Guillermo; Chaves Barboza, Gustavo Adolfo; Cardús Andreu, Lluís; Casas Becerra, María Teresa; Casanovas Salas, Jordi; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2014-01-07)
      Article
      Open Access
      Encapsulation of DNA into hydroxyapatite (HAp) has been investigated using a rational approach that involves computer simulation and experimental techniques. The temporal evolution of the radial distribution functions ...
    • Nanocomposites of new biodegradable poliesters and polyesteramides 

      Puiggalí Bellalta, Jordi; Morales Gámez, Laura Teresa; Franco García, María Lourdes; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Rodríguez Galán, Rafael Alfonso (2011-03-16)
      Article
      Open Access
      Polymers are easily prepared by bulk polycondensation based on metal-halide salt formation, while crystallization is strongly influenced by incorporation and distribution of silicate nanoparticles.
    • Nanostructured amphiphilic systems based on hyaluronic acid ionic complexes 

      Gamarra Montes, Ana; Alla Bedahnane, Abdelilah; Martínez de Ilarduya Sáez de Asteasu, Domingo Antxon; Casas Becerra, María Teresa; Muñoz Guerra, Sebastián (2016)
      Conference report
      Open Access
      In this communication we wish to report on HyA ionic complexes prepared by coupling with a) choline-based surfactants (nACh·HyA complexes), and b) alkylphosphonium surfactants (nATMP·HyA complexes) with n being the number ...
    • Nucleation and antinucleation effects of functionalized carbon nanotubes on cyclic and linear Poly(e-caprolactones) 

      Perez, Ricardo A.; Lopez, Juan V; Hoskins, Jessica N.; Zhang, Boyu; Grayson, Scott M.; Casas Becerra, María Teresa; Puiggalí Bellalta, Jordi; Muller, Alejandro J. (American Chemical Society (ACS), 2014-06-10)
      Article
      Restricted access - publisher's policy
      Novel nanocomposites were prepared by blending linear or cyclic poly(e-caprolactones) with two types of chemically modified carbon nanotubes (CNTs). The low-polydispersity cyclic PCL samples (C-PCLs) were synthesized by ...
    • Preferential incorporation of azelaic acid units into the crystalline phase of the copoly(alkylene dicarboxylate) derived from 1,9-nonanediol and an equimolar mixture of pimelic and azelaic acids 

      Díaz Andrade, Angélica María; Casas Becerra, María Teresa; Puiggalí Bellalta, Jordi (2015-09-01)
      Article
      Open Access
      The crystalline structure of two biodegradable odd-odd polyesters (i.e., poly(nonamethylene pimelate) (PES 9,7) and poly(nonamethylene azelate) (PES 9,9)) was investigated by means of electron and X-ray diffraction of ...
    • Preparation of micro-molded exfoliated clay nanocomposites by means of ultrasonic technology 

      Díaz Andrade, Angélica María; Franco García, María Lourdes; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Aymami Bofarull, Juan; Olmo Osuna, Cristian; Puiggalí Bellalta, Jordi (2014-10-15)
      Article
      Restricted access - publisher's policy
      Ultrasound micro-molding technology has been tested as a new method to get polymer/clay nanocomposites. Biodegradable polylactide (PLA) and poly (nona-methylene azelate) (PE99) have been used as polymer matrices, whereas ...
    • Self-assembly of semicrystalline PE-b-PS diblock copolymers within AAO nanoporous templates 

      Casas Becerra, María Teresa; Michell, Rose Mary; Blaszczyk-Lezak, Iwona; Puiggalí Bellalta, Jordi; Mijangos, Carmen; Lorenzo, Arnaldo T.; Müller, Alejandro (Elsevier, 2015-07-25)
      Article
      Open Access
      Strongly segregated polyethylene-b-polystyrene (PE-b-PS) diblock copolymers were infiltrated within anodic aluminum oxide nanoporous templates (AAO) (with 60 nm diameter). After carefully removing the nanofibers from the ...
    • Structural transitions of nylon 47 and clay influence on its crystallization behavior 

      Morales Gámez, Laura Teresa; Casas Becerra, María Teresa; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2013-06)
      Article
      Restricted access - publisher's policy
      Basic diffraction data on nylon 47 pointed out a peculiar structure of hydrogen bonds along two directions. Nylon 47 showed reversible polymorphic transitions during heating/cooling processes that were analyzed by real ...
    • Synergistic approach to elucidate the incorporation of magnesium ions into hydroxyapatite 

      Bertran Cànovas, Òscar; Valle Mendoza, Luis Javier del; Revilla López, Guillermo; Rivas Cañas, Manuel; Chaves Barboza, Gustavo Adolfo; Casas Becerra, María Teresa; Casanovas Salas, Jordi; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2015-02-02)
      Article
      Restricted access - publisher's policy
      Although the content of Mg2+ in hard tissues is very low (typically 1.5wt%), its incorporation into synthetic hydroxyapatite (HAp) particles and its role in the mineral's properties are still subject of intensive debate. ...
    • Thermally induced structural transitions of nylon 4 9 as a new example of even-odd polyamides 

      Olmo Osuna, Cristian; Casas Becerra, María Teresa; Martínez Guil, Juan Carlos; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2018-02-16)
      Article
      Open Access
      Crystalline morphology and structure of nylon 4 9 have been studied by means of optical and transmission electron microscopies, and X-ray diffraction. Rhombic crystals were characteristic of crystallization from glycerin ...
    • Ultracapacitors made with Hybrid conducting polymer–clay exfoliated nanocomposites 

      Aradilla Zapata, David; Azambuja, Denise; Estrany Coda, Francesc; Casas Becerra, María Teresa; Ferreira, Carlos A.; Alemán Llansó, Carlos (EUETIB, 2013-12)
      Conference lecture
      Open Access
      Ultracapacitors form exfoliated nanocomposites of poly(3,4-ethylenedioxythiophene) (PEDOT), and montmorillonite (MMT), have been fabricated, and have been characterized by electrochemical and macroscopic methods, found to ...