El grup està especialitzat en la síntesi i l'estudi de propietats de nous polímers. Aquests corresponen majoritàriament a materials biodegradables, per la qual cosa ens hem centrat en les tècniques que permeten el seguiment del procés de degradació (hidrolític, enzimàtic o tèrmic). També es fa l'estudi de les seves aplicacions com a sistemes dosificadors de fàrmacs (preparació de micropartícules, incorporació de l'agent actiu i seguiment del seu alliberament). Els materials es caracteritzen a través de les tècniques espectroscòpiques habituals i se?n determinen les propietats tèrmiques i mecàniques.
Les propietats dels materials polimèrics depenen de la manera com s'organitzen les macromolècules, per la qual cosa també s'estudien les fases amorfes i les diferents fases cristal·lines. La determinació de l'estructura cristal·lina es fa combinant tècniques de difracció de raigs X (pols o fibra), microscòpia electrònica i simulació molecular. També es fa la resolució, per mètodes directes i per difracció amb mon

http://futur.upc.edu/PSEP

The team specialises in the synthesis of new polymers, their physical and chemical characterisation, and the study of their properties. It is mainly involved in the development of biodegradable polymers and the study of degradation processes (hydrolytic, enzymatic and thermal). The applications of polymers as drug delivery systems are considered. The study of amorphous content and crystalline phases is also undertaken. The crystalline structures are determined by X-ray diffraction (powder or fibre), electron microscopy and molecular simulation. Direct methods are applied to monocrystals of small model compounds that are representative of polymer sequences. Research is also carried out into crystal growth (from solution or from the melt state) and the kinetics of crystallisation.

http://futur.upc.edu/PSEP

The team specialises in the synthesis of new polymers, their physical and chemical characterisation, and the study of their properties. It is mainly involved in the development of biodegradable polymers and the study of degradation processes (hydrolytic, enzymatic and thermal). The applications of polymers as drug delivery systems are considered. The study of amorphous content and crystalline phases is also undertaken. The crystalline structures are determined by X-ray diffraction (powder or fibre), electron microscopy and molecular simulation. Direct methods are applied to monocrystals of small model compounds that are representative of polymer sequences. Research is also carried out into crystal growth (from solution or from the melt state) and the kinetics of crystallisation.

http://futur.upc.edu/PSEP

Enviaments recents

  • Electrospun scaffolds from low molecular weight poly(ester amide)s based on glycolic acid, adipic acid and odd or even diamines 

    Murase Fernandez, Sara Keiko; Valle Mendoza, Luis Javier del; Puiggalí Bellalta, Jordi (2015-05-12)
    Article
    Accés obert
    Electrospinning of regular poly(ester amide)s (PEAs) constituted by glycolic acid, adipic acid and diamines with five and six carbon atoms has been carried out. Selected PEAs were constituted by natural origin products and ...
  • Prototyping flexible supercapacitors produced with biohydrogel 

    Saborío González, Maricruz; Zukic, Sejla; Lanzalaco, Sonia; Casanovas Salas, Jordi; Puiggalí Bellalta, Jordi; Estrany Coda, Francesc; Alemán Llansó, Carlos (Elsevier, 2018-04-30)
    Article
    Accés restringit per política de l'editorial
    Flexible symmetric supercapacitor prototypes composed of electrodes that were prepared by polymerizing poly(hydroxymethyl-3,4-ethylenedioxythiophene) inside a poly-¿-glutamic acid (¿PGA) biohydrogel matrix, previously ...
  • Dual-functionalization device for therapy through dopamine release and monitoring 

    Fabregat Jové, Georgina; Giménez, Alessia; Díaz Andrade, Angélica María; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2018-01-01)
    Article
    Accés restringit per política de l'editorial
    A dual-functional device is fabricated to release progressively dopamine (DA) from a biohydrogel under real-time monitoring via electrochemical detection. For this purpose, a poly-¿-glutamic acid biohydrogel is assembled ...
  • Sustainable solid-state supercapacitors made of 3D-poly(3,4-ethylenedioxythiophene) and k-Carrageenan Biohydrogel 

    Fabregat Jové, Georgina; Hodasova, Ludmila; Valle Mendoza, Luis Javier del; Estrany Coda, Francesc; Alemán Llansó, Carlos (2018-01-01)
    Article
    Accés restringit per política de l'editorial
    3D-Poly(3,4-ethylenedioxythiophene) (PEDOT) electrodes are prepared using the multi-step template-assisted approach. Specifically, poly(lactic acid) nano- and microfibers collected on a previously polymerized PEDOT film ...
  • Flexible Electrodes for Supercapacitors Based on the Supramolecular Assembly of Biohydrogel and Conducting Polymer 

    Saborío Gonzalez, Maricruz; Lanzalaco, Sonia; Fabregat Jové, Georgina; Puiggalí Bellalta, Jordi; Estrany Coda, Francesc; Alemán Llansó, Carlos (2018-01-18)
    Article
    Accés restringit per política de l'editorial
    Flexible and lightweight electrodes were prepared using a two-step process. First, poly(3,4-ethylenedioxythiophene) (PEDOT) microparticles were loaded into poly-y-glutamic acid (y-PGA) hydrogel matrix during the reaction ...
  • 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
    Accés obert
    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 ...
  • Surface mediated hierarchical assemblies of highly hydrophobic phenylalanine-based peptides 

    Mayans Tayadella, Enric; Fabregat Jové, Georgina; Juarez Dominguez, Ruben; Cativiela, Carlos; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2017-01-01)
    Article
    Accés obert
    We report the noticeable control exerted by the surface in the self-assembly of a highly hydrophobic triphenylalanine peptide with fluorenyl functionalities blocking the two ends. The remarkable differences observed among ...
  • Diversity and hierarchy in supramolecular assemblies of triphenylalanine: from laminated helical ribbons to toroids 

    Mayans Tayadella, Enric; Casanovas Salas, Jordi; Gil, Ana M.; Jimenez Sanz, Ana Isabel; Cativiela, Carlos; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2017-04-04)
    Article
    Accés obert
    Microstructures from small phenylalanine-based peptides have attracted great attention lately because these compounds are considered to be a new class of tunable materials. In spite of the extensive studies on uncapped ...
  • Sustainable synthesis of amino acids by catalytic fixation of molecular dinitrogen and carbon dioxide 

    Rivas Cañas, Manuel; Valle Mendoza, Luis Javier del; Turón Dols, Pau; Alemán Llansó, Carlos; Puiggalí Bellalta, Jordi (Royal Society of Chemistry, 2018-02-07)
    Article
    Accés obert
    The industrial process of nitrogen fixation is complex and results in a huge economic and environmental impact. It requires a catalyst and high temperature and pressure to induce the rupture of the strong N–N bond and ...
  • Antimicrobial electrospun fibers of polyester loaded with engineered cyclic gramicidin analogues 

    Maione, Silvana; Valle Mendoza, Luis Javier del; Pérez Madrigal, Mª del Mar; Cativiela, Carlos; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2017)
    Article
    Accés obert
    Biodegradable polyester fibers have been loaded with two engineered analogues of gramicidin soviet. In these cyclic peptide derivatives, which were designed in a previous work to stabilize the bioactive conformation while ...
  • Preparation of random poly(butylene alkylate-co-terephthalate)s with different methylene group contents: crystallization and degradation kinetics 

    Heidarzadeh, Nina; Rafizadeh, Mehdi; Taromi, Faramarz Afshar; Puiggalí Bellalta, Jordi; Valle Mendoza, Luis Javier del; Franco García, María Lourdes (2017-10)
    Article
    Accés restringit per política de l'editorial
    Random copolyesters having 1,4-butanediol units were synthesized from a transesterification process between homopolymers constituted by aliphatic dicarboxylates (i.e. succinate, adipate or sebacate) and the aromatic ...
  • The biocompatible polythiophene-: G-polycaprolactone copolymer as an efficient dopamine sensor platform 

    Molina, Brenda G.; Bendrea, Anca Dana; Cianga, Luminita; Armelín Diggroc, Elaine Aparecida; Valle Mendoza, Luis Javier del; Cianga, Ioan; Alemán Llansó, Carlos (2017-10-21)
    Article
    Accés obert
    Amphiphilic copolymers consisting of an all conjugated polythiophene backbone and sparsely attached oligo-¿-caprolactone side chains have been prepared by anodic electropolymerization of hydroxymethyl-3,4-ethylenedioxythiophene ...

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