Urease functionalized silica: A biohybrid substrate to drive self-mineralization
A study was conducted to demonstrate the use of urease to drive HAP-like film deposition over the silica surface under mild conditions. The study used a synthetic monodispersed submicrometric silica spheres as a model substrate to simplify mass transport boundary conditions. Direct adsorption of ure...
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| Autores principales: | , , , |
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| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_08974756_v20_n24_p7368_Ortega |
| Aporte de: |
| Sumario: | A study was conducted to demonstrate the use of urease to drive HAP-like film deposition over the silica surface under mild conditions. The study used a synthetic monodispersed submicrometric silica spheres as a model substrate to simplify mass transport boundary conditions. Direct adsorption of urease on the silica surface was carried out to achieve silica functionalization. Covalent anchorage was also used to perform proper active enzyme loadings on the silica surface without shielding it with polyelectrolytes. Amino-capped silica particles were synthesized and biofunctionalized with urease during the study using direct covalent attachment with glutaraldehyde as coupling agent. This method proved that urease functionalized silica can be used as an interface for nucleation and growth of HAP-like coatings under mild conditions and short aging times. |
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