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

  • 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 Allepuz, Jordi (2018-06-01)
    Article
    Accés obert
    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. ...
  • Segmental relaxation and partial crystallization of chain-extended Poly(l-lactic acid) reinforced with carboxylated carbon nanotube 

    Yousefzade, Omid; Valenti, Sofia; Puiggalí Bellalta, Jordi; Garmabi, Hamid; Macovez, Roberto (2019-02-15)
    Article
    Accés restringit per política de l'editorial
    Temperature-modulated differential scanning calorimetry (TMDSC) and broadband dielectric spectroscopy (BDS) were employed to study the glass transition, size of the cooperative rearranging regions (CRRs), crystallization ...
  • Properties of Omp2a-based supported lipid bilayers: comparison with polymeric bioinspired membranes 

    Puiggalí Jou, Anna; Pawlowski, Jan; Valle Mendoza, Luis Javier del; Michaux, Catherine Anne Gisèle; Perpète, Eric A.; Sek, Slawomir; Alemán Llansó, Carlos (American Chemical Society (ACS), 2018-08-01)
    Article
    Accés obert
    Omp2a ß-barrel outer membrane protein has been reconstituted into supported lipid bilayers (SLBs) to compare the nanomechanical properties (elastic modulus, adhesion forces, and deformation) and functionality of the resulting ...
  • Hydroxyapatite with permanent electrical polarization: preparation, characterization, and response against inorganic adsorbates 

    Rivas Moreno, Manuel; Valle Mendoza, Luis Javier del; Armelín Diggroc, Elaine Aparecida; Bertran Cànovas, Òscar; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2018-04-16)
    Article
    Accés restringit per política de l'editorial
    Permanently polarized hydroxyapatite (HAp) particles have been prepared by applying a constant DC of 500 V at 1000¿°C for 1 h to the sintered mineral. This process causes important chemical changes, as the formation of OH- ...
  • Tuning the Kinetic Stability of the Amorphous Phase of the Chloramphenicol Antibiotic 

    Valenti, Sofia; Romanini, Michela; Franco García, María Lourdes; Puiggalí Bellalta, Jordi; Tamarit Mur, José Luis; Macovez, Roberto (2018-10-23)
    Article
    Accés restringit per política de l'editorial
    We employ broadband dielectric spectroscopy to study the relaxation dynamics and crystallization kinetics of a broad-spectrum antibiotic, chloramphenicol, in its supercooled liquid form. Two dynamic processes are observed: ...
  • Simulation basis for a techno-economic evaluation of chitin nanomaterials production process using Aspen Plus® software 

    Larbi, Fatma; García Nuñez, Araceli; Valle Mendoza, Luis Javier del; Hamou, Ahmed; Puiggalí Bellalta, Jordi; Belgacem, Naceur; Bras, Julien (Elsevier, 2018-10-01)
    Article
    Accés obert
    Process simulation is a useful tool that has been widely used to analyze, design and optimize energy balances in chemical technologies including those related to biomass processing, biorefinery processes and chemical ...
  • Histidine decarboxylase-positive lactic acid bacteria strains and the formation of histamine in ripened cheeses 

    Valle Mendoza, Luis Javier del; Ginovart Gisbert, Marta; Gordún Quiles, Elena; Carbó Moliner, Rosa (2018-09-14)
    Article
    Accés obert
    The relationship between histidine decarboxylase-positive (hdc+) lactic acid bacteria (LAB) counts and the amounts of biogenic amines, particularly histamine, in cheeses made with and without LAB starter were investigated. ...
  • 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 obert
    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 ...

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