CO-CONTINUOUS HYBRID STRUCTURE FOR THE REGENERATION OF BONE DEFECTS
The invention relates to a method for obtaining a scaffold consisting of a porous PCL matrix and a hydroxyapatite coating, comprising the following steps: (i) preparing a homogeneous PCL solution in a mixture of two solvents, namely a PCL solvent and a PCL nonsolvent (ii) filling a mould with the ho...
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Zusammenfassung: | The invention relates to a method for obtaining a scaffold consisting of a porous PCL matrix and a hydroxyapatite coating, comprising the following steps: (i) preparing a homogeneous PCL solution in a mixture of two solvents, namely a PCL solvent and a PCL nonsolvent (ii) filling a mould with the homogeneous solution (iii) cooling the homogeneous solution to a temperature lower than the temperature at which the separation of the two liquid phases occurs (iv) isothermal treatment (v) solidifying both phases, reducing the temperature (vi) extracting the PCL solvent and the PCL nonsolvent, together with a third solvent and (vii) depositing biomimetic HAp. The structure is suitable for use in tissue engineering.
Estructura híbrida co-continua para la regeneración de defectos óseos. La presente invención describe un procedimiento para la obtención de un scaffold que consiste en una matriz porosa de PCL y un recubrimiento de hidroxiapatita que comprende: (i) preparar una disolución homogénea de PCL en una mezcla de dos disolventes, un disolvente de PCL, y un no-solvente de PCL, (ii) rellenar un molde con dicha disolución homogénea; (iii) enfriar la disolución homogénea hasta una temperatura inferior a la temperatura a la que se produce la separación de dos fases líquidas; (iv) tratamiento isotérmico; (v) solidificar ambas fases disminuyendo la temperatura; (vi) extraer el disolvente de PCL y el no-solvente de PCL, con un tercer disolvente; y (vii) deposición de HAp biomimética. El soporte es útil en aplicaciones de ingeniería tisular. |
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