Now showing items 1-20 of 37

  • Accelerated hardening of nanotextured 3D-plotted self-setting calcium phosphate inks 

    Raymond Llorens, Santiago; Maazouz, Yassine; Montufar Jiménez, Edgar Benjamin; Perez, Roman A.; González Arcos, Borja; Konka, Joanna Magdalena; Ginebra Molins, Maria Pau (Elsevier, 2018-01-01)
    Article
    Open Access
    Direct ink writing (DIW) techniques open up new possibilities for the fabrication of patient-specific bone grafts. Self-setting calcium phosphate inks, which harden at low temperature, allow obtaining nanostructured scaffolds ...
  • Adhesión de streptococcus mutans sobre hidroxiapatita in vitro 

    Hidalgo, V.M.; Blesa, M.A.; Apella, M.C.; Berardinelli, E.M. (Sociedad Ibérica de Biomecánica y Biomateriales, 2001-12)
    Article
    Open Access
    En el presente trabajo se evalúa la adhesión de Streptococcus mutans a hidroxiapatitas de diferente naturaleza en una solución oral sintética. La adhesión microbiana fue determinada indirectamente por recuento de los ...
  • Caracterizacion térmica de hueso y substratos metálicos para uso biomédico 

    Peña Rodríguez, Gabriel; Méndez González, Magdalena; Calderón Arenas, Antonio; Cruz Orea, Alfredo; Sánchez Sinencio, Feliciano (Sociedad Ibérica de Biomecánica y Biomateriales, 2000-12)
    Article
    Open Access
    En este trabajo reportamos mediciones de difusividad térmica a temperatura ambiente en dos diferentes cortes de hueso denso de res, hueso de res en polvo e hidroxiapatita comercial en polvo. Realizamos una comparación ...
  • Detrimental effects of magnesium (II) on hydroxyapatite precipitation from synthetic industrial brines 

    Hermassi, Mehrez; Valderrama Angel, César Alberto; Dosta, Joan; Cortina Pallás, José Luís; Batis, Narjes (Elsevier, 2016)
    Article
    Open Access
    The influence of Mg(II) on phosphorous recovery as hydroxyapatite (Hap) from alkaline phosphate concentrates using desalinated industrial brines as the calcium source in a batch reactor was evaluated. Two synthetic brines ...
  • Development and characterization of biphasic hydroxyapatite/ß-TCP cements 

    Gallinetti, Sara; Canal Barnils, Cristina; Ginebra Molins, Maria Pau (2014-04)
    Article
    Restricted access - publisher's policy
    Biphasic calcium phosphate bioceramics composed of hydroxyapatite (HA) and ß-tricalcium phosphate (ß-TCP) have relevant properties as synthetic bone grafts, such as tunable resorption, bioactivity, and intrinsic osteoinduction. ...
  • Dissolving hydroxyolite: a DNA molecule into its hydroxyapatite mold 

    Bertran Cànovas, Òscar; Revilla López, Guillermo; Casanovas Salas, Jordi; Valle Mendoza, Luis Javier del; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2016-04-01)
    Article
    Open Access
    In spite of the clinical importance of hydroxyapatite (HAp), the mechanism that controls its dissolution in acidic environments remains unclear. Knowledge of such a process is highly desirable to provide better understanding ...
  • DNA adsorbed on hydroxyapatite surfaces 

    Valle Mendoza, Luis Javier del; Bertran Cànovas, Òscar; Chaves Barboza, Gustavo Adolfo; Revilla López, Guillermo; Rivas Cañas, Manuel; Casanovas Muñoz, Jordi; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos; Casas, Maria Teresa (Royal Society of Chemistry, 2014-01-01)
    Article
    Open Access
    Hydroxyapatite (HAp) particles with very different surface charges and compositions (i.e. different Ca/P and CO32-/PO43- ratios) have been obtained by varying the experimental conditions used during the chemical precipitation ...
  • EDTA and NTA effectively tune the mineralization of calcium phosphate from bulk aqueous solution 

    Hentrich, Doreen; Tauer, Klaus; Español Pons, Montserrat; Ginebra Molins, Maria Pau; Taubert, Andreas (2017-12-01)
    Article
    Open Access
    Covenantee:  Universität Potsdam / Max-Planck-Institut für Kolloid- und Grenzflächenforschung
    This study describes the effects of nitrilotriacetic acid (NTA) and ethylenediaminotetraacetic acid (EDTA) on the mineralization of calcium phosphate from bulk aqueous solution. Mineralization was performed between pH 6 ...
  • Efecto del contenido del agente de refuerzo en materiales cerámicos compuestos de hidroxiapatitacircona 

    Delgado García-Menocal, José Angel; Martínez, Salvador; Morejón, Lizette; Ginebra Molins, Maria Pau; Fernández Aguado, Enrique; Planell Estany, Josep Anton; Clavaguera-Mora, M. T. (Sociedad Ibérica de Biomecánica y Biomateriales, 2000-12)
    Article
    Open Access
    En este trabajo se estudia el efecto del contenido partículas de circona parcialmente estabilizadas con magnesia (Mg-PSZ) en el comportamiento mecánico de cerámicas de hidroxiapatita (HA) reforzadas con circona. Se ...
  • Effect of calcium phosphate heparinization on the in vitro inflammatory response and osteoclastogenesis of human blood precursor cells 

    Díez Escudero, Anna; Torreggiani, E.; Pompo, Gemma di; Español Pons, Montserrat; Persson, Cecilia; Ciapetti, Gabriela; Baldini, Nicola; Ginebra Molins, Maria Pau (2019-01-01)
    Article
    Open Access
    Covenantee:  Istituto Ortopedico Rizzoli / Uppsala universitet / Università di Bologna / Institut de Bioenginyeria de Catalunya
    The immobilization of natural molecules on synthetic bone grafts stands as a strategy to enhance their biological interactions. During the early stages of healing, immune cells and osteoclasts (OC) modulate the inflammatory ...
  • Effect of hydroxyapatite nanoparticles on the degradability of random poly(butylene terephthalate-co-aliphatic dicarboxylate)s having a high content of terephthalic units 

    Heidarzadeh, Nina; Mehdi Rafizadeh, Mehdi; Faramarz Afshar Taromi, Faramarz Afshar; Valle Mendoza, Luis Javier del; Franco García, María Lourdes; Puiggalí Bellalta, Jordi (2016-07-06)
    Article
    Open Access
    Copolyesters derived from 1,4-butanediol and constituted also of aliphatic and aromatic dicarboxylate units in a molar ratio of 3:7 were synthesized by a two-step polycondensation procedure. Succinic, adipic, and sebacic ...
  • Effects of hydroxyapatite (0001) Ca2+/Mg2+ substitution on adsorbed D-ribose ring puckering 

    Revilla López, Guillermo; Bertran Cànovas, Òscar; Casanovas Salas, Jordi; Turón Dols, Pau; Puiggalí Bellalta, Jordi; Alemán Llansó, Carlos (2016-07-13)
    Article
    Open Access
    Advanced Molecular Dynamics (MD) simulation protocols have been used to assess the ring puckering of cyclic D-ribose when the sugar is adsorbed on the most stable (0001) facet of calcium hydroxyapatite (HAp). In addition, ...
  • Electrically polarized hydroxyapatite: influence of the polarization process on the microstructure and properties 

    Sans Milà, Jordi; Llorca Piqué, Jordi; Sanz, Vanesa; Puiggalí Bellalta, Jordi; Turón Dols, Pau; Alemán Llansó, Carlos (2019-11-19)
    Article
    Open Access
    Semipermanently polarized hydroxyapatite, named SP/HAp(w), is obtained by applying a constant dc electric field of 1–10 kV/cm at 300–850 °C to the samples previously sintered in water vapor, while permanently polarized ...
  • Electrochemical microelectrodes for improved spatial and temporal characterization of aqueous environments around calcium phosphate cements. 

    Gustavsson, Johan; Ginebra Molins, Maria Pau; Planell Estany, Josep Anton; Engel López, Elisabeth (2011-10-07)
    Article
    Restricted access - publisher's policy
    Calcium phosphate compounds can potentially influence cellular fate through ionic substitutions. However, to be able to turn such solution-mediated processes into successful directors of cellular response, a perfect ...
  • Estudi i caracterització d’un tractament d’electrodeposició de compostos de fosfat de calci sobre titani per a aplicacions biomèdiques 

    Vidal Girona, Elia (Universitat Politècnica de Catalunya, 2014-06)
    Master thesis (pre-Bologna period)
    Open Access
    En aquest projecte es desenvolupa un recobriment de hidroxiapatita mitjançant electrodeposició per polsos, i a la vegada aquest recobriment es fa servir com a transport per l’alliberació d'un agent antibacterià, en concret ...
  • Estudio de la capacidad de los hidroxiapatitos como reactivos para la eliminación de metales 

    Toribio Jiménez, Eva (Universitat Politècnica de Catalunya, 2015-01)
    Bachelor thesis
    Open Access
    El Trabajo de Fin de Grado se ha centrado en el estudio de la capacidad que tienen los hidroxiapatitos, como materiales reactivos para eliminar metales de disoluciones acuosas. En el mismo, se evaluaran diferentes formas ...
  • Estudio experimental del relleno de cavidades óseas con hidroxiapatita asociada a colágeno 

    Morales de Cano, Juan Manuel; Romero Ruiz, J.; García Ruzafa, A.; Fernández Sabaté, A. (Sociedad Ibérica de Biomecánica y Biomateriales, 1997-12)
    Article
    Open Access
    La cirugía ortopédica y maxilo-facial necesita realizar en muchas ocasiones resecciones masivas de tejido óseo. Esto ha hecho que se hayan propuesta la utilización de materiales inertes como sustitutos óseos, gracias a la ...
  • Evaluation of a porosity measurement method for wet calcium phosphate cements 

    Ajaxon, Ingrid; Maazouz, Yassine; Ginebra Molins, Maria Pau; Ohman, Caroline; Persson, Cecilia (2015)
    Article
    Open Access
    Covenantee:  Uppsala universitet
    The porosity of a calcium phosphate cement is a key parameter as it affects several important properties of the cement. However, a successful, non-destructive porosity measurement method that does not include drying has ...
  • Formulación de cementos bioactivos mediante la adición de sales de hidroxiapatita-estroncio 

    Hernández, L.; Gurruchaga, M.; Goñi, I. (2008-11-11T16:19:17Z)
    Article
    Open Access
    Se han formulado cementos óseos acrílicos inyectables para su uso en vertebroplastia (VP) y se les ha proporcionado bioactividad mediante la incorporación de sales de hidroxiapatita estroncio (HASr). El objetivo es combinar ...
  • Impact of porosity and electrolyte composition on the surface charge of hydroxyapatite biomaterials 

    Español Pons, Montserrat; Ginebra Molins, Maria Pau; Dory, Jean Baptiste (-, 2015-12-18)
    Article
    Open Access
    The success or failure of a material when implanted in the body is greatly determined by the surface properties of the material and the host tissue reactions. The very first event that takes place after implantation is the ...