Browsing by Subject "Hidroxiapatita"
Now showing items 1-20 of 49
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3D printing of hierarchical porous biomimetic hydroxyapatite scaffolds: Adding concavities to the convex filaments
(Elsevier, 2021-01-01)
Article
Open Access
Covenantee: Institut de Bioenginyeria de CatalunyaPorosity plays a key role on the osteogenic performance of bone scaffolds. Direct Ink Writing (DIW) allows the design of customized synthetic bone grafts with patient-specific architecture and controlled macroporosity. ... -
Accelerated hardening of nanotextured 3D-plotted self-setting calcium phosphate inks
(Elsevier, 2018-01-01)
Article
Open AccessDirect 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 ... -
Biogenic hydroxypatite (Apatite II TM) dissolution kinetics and metal removal from acid mine drainage
(Elsevier, 2012-04-30)
Article
Restricted access - publisher's policy -
Breaking-down the catalyst used for the electrophotosynthesis of amino acids by nitrogen and carbon fixation
(2020-09-01)
Article
Open AccessThe electrophotocatalytic synthesis of Glycine and Alanine from a simple gas mixture containing N2, CO2, CH4 and H2O under mild reaction conditions (95 °C and 6 bar) was recently developed using a catalyst formed by ... -
Caracterización y optimización de un biomaterial compuesto de microesferas de cemento de fosfato de calcio en una matriz de hidrogel destinado a la regeneración ósea
(Universitat Politècnica de Catalunya, 2021-07-06)
Bachelor thesis
Restricted access - author's decisionL’osteosarcoma és un tipus de càncer que afecta principalment a nens i joves, i segueix un tractament agressiu que es basa habitualment en una combinació de cirurgia i quimioteràpia amb índex de supervivència relativament ... -
Comparison of a low molecular weight and a macromolecular surfactant as foaming agents for injectable self setting hydroxyapatite foams: Polysorbate 80 versus gelatine
(2011-10-10)
Article
Restricted access - publisher's policyHydroxyapatite foams are potential synthetic bone grafting materials or scaffolds for bone tissue engineering. A novel method to obtain injectable hydroxyapatite foams consists in foaming the liquid phase of a calcium phosphate ... -
Controlled anisotropic growth of hydroxyapatite by additive-free hydrothermal synthesis
(American Chemical Society, 2021-01-01)
Article
Open AccessThe synthesis of hydroxyapatite (HAp) with different shapes and sizes has attracted increasing attention because the applicability of this ceramic material depends on structure-properties relationships (i.e., the dimensions ... -
Desenvolupament d'hidroxiapatita a partir de nanopartícules de carbonat de calci i fosfats per l'eliminació de metalls en aigües subterrànies
(Universitat Politècnica de Catalunya, 2018-07-02)
Bachelor thesis
Restricted access - author's decisionLa retenció de metalls en les aigües subterrànies es pot realitzar mitjançant la seva adsorció/precipitació sobre hidroxiapatita. La utilització d'aquests materials adsorbents amb una grandària nanomètrica permetria accelerar ... -
Development of nano-topograhies of calcium phosphate for antimicrobial applications
(Universitat Politècnica de Catalunya, 2024-07-03)
Master thesis
Restricted access - confidentiality agreement -
Dissolving hydroxyolite: a DNA molecule into its hydroxyapatite mold
(2016-04-01)
Article
Open AccessIn 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
(Royal Society of Chemistry, 2014-01-01)
Article
Open AccessHydroxyapatite (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 ... -
Doped hydroxyapatite ultra-long nanofibres
(Universitat Politècnica de Catalunya, 2024-02-16)
Master thesis
Restricted access - confidentiality agreementHuman bone is a composite material composed of a mineral and organic phase. It is a living tissue that, when damaged, regenerates spontaneously and naturally to allow reconstruction or replacement of lost or damaged bone ... -
Effect of hydroxyapatite nanoparticles on the degradability of random poly(butylene terephthalate-co-aliphatic dicarboxylate)s having a high content of terephthalic units
(2016-07-06)
Article
Open AccessCopolyesters 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
(2016-07-13)
Article
Open AccessAdvanced 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
(2019-11-19)
Article
Open AccessSemipermanently 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 ... -
Estudi i caracterització d’un tractament d’electrodeposició de compostos de fosfat de calci sobre titani per a aplicacions biomèdiques
(Universitat Politècnica de Catalunya, 2014-06)
Master thesis (pre-Bologna period)
Open AccessEn 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
(Universitat Politècnica de Catalunya, 2015-01)
Bachelor thesis
Open AccessEl 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 de un cemento bioactivo de hidroxiapatita como material de substitución ósea
(Sociedad Ibérica de Biomecánica y Biomateriales, 2002-06)
Article
Open AccessLa cirugía ortopédica y máxilo-facial necesita realizar en muchas ocasiones resecciones masivas de tejido óseo. Esto ha hecho que se haya propuesto la utilización de materiales inertes como substitutos óseos, gracias a ... -
Estudio experimental del relleno de cavidades óseas con hidroxiapatita asociada a colágeno
(Sociedad Ibérica de Biomecánica y Biomateriales, 1997-12)
Article
Open AccessLa 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
(2015)
Article
Open Access
Covenantee: Uppsala universitetThe 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 ...
