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Ara es mostren els items 85-104 de 170

    • Micro-molding with ultrasonic vibration energy: New method to disperse nanoclays in polymer matrices 

      Planellas Oates, Marc; Sacristan, Matias; Rey, Lorena; Olmo Osuna, Cristian; Aymami Bofarull, Juan; Casas Becerra, María Teresa; Valle Mendoza, Luis Javier del; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2014-07)
      Article
      Accés restringit per política de l'editorial
      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 ...

    • Microfibres of conducting polythiophene and biodegradable poly(ester urea) for scaffolds 

      Planellas Oates, Marc; Pérez Madrigal, Maria del Mar; Valle Mendoza, Luis Javier del; Kobauri, Sophio; Katsarava, Ramaz; Alemán Llansó, Carlos; Puiggalí Bellalta, Jordi (2015-01-01)
      Article
      Accés obert
      Hybrid scaffolds constituted of a mixture of conducting and biodegradable polymers are obtained by the electrospinning technique. Specifically, poly(3-thiophene methyl acetate) (P3TMA) and a copolymer derived from L-leucine, ...

    • Microstructural changes during degradation of biobased poly(4-hydroxybutyrate) sutures 

      Keridou, Ina; Franco García, María Lourdes; Valle Mendoza, Luis Javier del; Funk, Lutz; Turon, Pau; Puiggalí Bellalta, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2020-09-01)
      Article
      Accés obert
      Fibers of poly(4-hydroxybutyrate) (P4HB) have been submitted to both hydrolytic and enzymatic degradation media in order to generate samples with different types and degrees of chain breakage. Random chain hydrolysis is ...

    • 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
      Accés obert
      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 ...

    • Modeling biominerals formed by apatites and DNA 

      Revilla López, Guillermo; Casanovas, Jordi; Bertran Cànovas, Òscar; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2013-04-08)
      Article
      Accés obert
      Different aspects of biominerals formed by apatite and DNA have been investigated using computer modeling tools. Firstly, the structure and stability of biominerals in which DNA molecules are embedded into hydroxyapatite ...

    • Multifunctional scaffolds based on emulsion and coaxial electrospinning incorporation of hydroxyapatite for bone tissue regeneration 

      Kadkhodaie Elyaderani, Amirmajid; Lama Odría, María del Carmen Elizabeth de; Valle Mendoza, Luis Javier del; Puiggalí Bellalta, Jordi (2022-12-01)
      Article
      Accés obert
      Tissue engineering is nowadays a powerful tool to restore damaged tissues and recover their normal functionality. Advantages over other current methods are well established, although a continuous evolution is still necessary ...

    • Multifunctional ternary drug-loaded electrospun scaffolds 

      Llorens Domenjó, Elena; Valle Mendoza, Luis Javier del; Puiggalí Bellalta, Jordi (2016-02-20)
      Article
      Accés obert
      Multifunctional electrospun scaffolds were prepared from two polylactide (PLA) grades having slightly different d-lactide content (4.2 wt % and 2.0 wt %). Triclosan (TCS), ketoprofen (KTP), and p-coumaric acid (CUM) were ...

    • Nanocomposites based on chain extended poly(l-lactic acid)/carboxylated carbon nanotubes: crystallization kinetics and lamellar morphology 

      Yousefzade, Omid; Franco García, María Lourdes; Nami, Mahsa; Puiggalí Bellalta, Jordi; Garmabi, Hamid (2019-06-01)
      Article
      Accés obert
      Isothermal and nonisothermal crystallization kinetics of poly(l-lactide) and its nanocomposites with different multiwalled carbon nanotubes (i.e., pristine and functionalized) were investigated. The effects of chain extension ...

    • 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
      Accés obert
      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.

    • Nanofeatures affect the thermal transitions of polymer thin films: a microcantilever-based investigation 

      Puiggalí Bellalta, Jordi; Pérez Madrigal, Maria del Mar; Alemán Llansó, Carlos (Royal Society of Chemistry (RSC), 2020)
      Article
      Accés obert
      Nanotechnology is regarded as a promising tool to advance science for a wide range of applications, ranging from nanomedicine, nanoelectronics, imaging and diagnosis. Whilst the unique surface properties of nanostructured ...

    • Nanomembranes and nanofibers from biodegradable conducting polymers 

      Llorens Domenjó, Elena; Armelín Diggroc, Elaine Aparecida; Pérez Madrigal, Maria del Mar; Valle Mendoza, Luis Javier del; Alemán Llansó, Carlos; Puiggalí Bellalta, Jordi (2013-09-01)
      Article
      Accés obert
      This review provides a current status report of the field concerning preparation of fibrous mats based on biodegradable (e. g., aliphatic polyesters such as polylactide or polycaprolactone) and conducting polymers (e. g., ...

    • Nanoparticle-driven self-assembling injectable hydrogels provide a multi-factorial approach for chronic wound treatment 

      Pérez Rafael, Silvia; Ivanova, Kristina Dimitrova; Stefanov, Ivaylo; Puiggalí Bellalta, Jordi; Valle Mendoza, Luis Javier del; Todorova, Katerina; Dimitrov, Petar; Hinojosa Caballero, Dolores; Tzanov, Tzanko (Elsevier, 2021-07-14)
      Article
      Accés obert
      Chronic wounds represent a major health burden and drain on medical system. Efficient wound repair is only possible if the dressing materials target simultaneously multiple factors involved in wound chronicity, such as ...

    • New amino acid based biodegradable poly(ester amide)s via bis-azlactone chemistry 

      Kobauri, Sophio; Otinashvili, Giuli; Kantaria, Tengiz; Tugushi, David; Kharadze, Darejan; Kutsiava, Nazi; Puiggalí Bellalta, Jordi; Katsarava, Ramaz (2018-11-08)
      Article
      Accés obert
      Three new classes of the amino acid based biodegradable (AABB) polymers were synthesized via step growth polymerization of bis-azlactones and amino acid based diamine-diesters with activated fatty diester and alkylenediamine: ...

    • New poly(ester urea) derived from L-leucine: Electrospun scaffolds loaded with antibacterial drugs and enzymes 

      Díaz Andrade, Angélica María; Valle Mendoza, Luis Javier del; Tugushi, David; Katsarava, Ramaz; Puiggalí Bellalta, Jordi (Elsevier, 2015-01-01)
      Article
      Accés obert
      Electrospun scaffolds from an amino acid containing poly(ester urea) (PEU) were developed as promising materials in the biomedical field and specifically in tissue engineering applications. The selected poly(ester urea) ...

    • Non-isothermal crystallization kinetics of poly(4-hydroxybutyrate) biopolymer 

      Keridou, Ina; Valle Mendoza, Luis Javier del; Funk, Lutz; Turon, Pau; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2019-08-05)
      Article
      Accés obert
      The non-isothermal crystallization of the biodegradable poly(4-hydroxybutyrate) (P4HB) has been studied by means of differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). In the first case, Avrami, ...

    • Novel biobased epoxy thermosets and coatings from poly(limonene carbonate) oxide and synthetic hardeners 

      Bonamigo Moreira, Vitor; Rintjema, Jeroen; Bravo Lara, Fernando; Kleij, Arjan W.; Franco García, María Lourdes; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos; Armelín Diggroc, Elaine Aparecida (American Chemical Society (ACS), 2022-02-18)
      Article
      Accés obert
      In the area of coating development, it is extremely difficult to find a substitute for bisphenol A diglycidyl ether (DGEBA), the classical petroleum-based raw material used for the formulation of epoxy thermosets. This ...

    • Nucleating and retarding effects of nanohydroxyapatite on the crystallization of poly(butylene terephthalate-co-alkylene dicarboxylate)s with different lengths 

      Heidarzadeh, Nina; Rafizadeh, Mehdi; Faramarz Afshar Taromi, Faramarz Afshar; Puiggalí Bellalta, Jordi; Valle Mendoza, Luis Javier del (Springer, 2019)
      Article
      Accés obert
      New biodegradable and biocompatible composites are continuously developed for biomedical applications (e.g., from drug delivery devices to tissue engineering scaffolds). Properties of such systems may depend on their ...

    • 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
      Accés restringit per política de l'editorial
      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 ...

    • Optimization of permanently polarized hydroxyapatite catalyst. Implications for the electrophotosynthesis of amino acids by nitrogen and carbon fixation 

      Sans Milà, Jordi; Sanz Beltran, Vanesa; Valle Mendoza, Luis Javier del; Puiggalí Bellalta, Jordi; Turón, Pau; Alemán Llansó, Carlos (2021-05)
      Article
      Accés obert
      The enhanced catalytic activity of permanently polarized hydroxyapatite, which is achieved using a thermally stimulated polarization process, largely depends on both the experimental conditions used to prepare crystalline ...

    • Performance-enhancing materials in medical gloves 

      Lovato Vélez, María José; Valle Mendoza, Luis Javier del; Puiggalí Bellalta, Jordi; Franco García, María Lourdes (Multidisciplinary Digital Publishing Institute (MDPI), 2023-06-30)
      Article
      Accés obert
      Medical gloves, along with masks and gowns, serve as the initial line of defense against potentially infectious microorganisms and hazardous substances in the health sector. During the COVID-19 pandemic, medical gloves ...