Bio-packaged transponder MEMS implanted in rats
Por:
Rodriguez R., Loske A.M., Estevez M., Vargas S., Salazar R., Pacheco F., Vazquez-Carpizo J., Gamboa J.M.
Publicada:
1 ene 2013
Resumen:
A novel hydroxyapatite-based hybrid material with controlled porosity was designed as a bio-package to implant micro-electro-mechanical systems (MEMS) in living organisms. The biomaterial was prepared using synthetic stoichiometric hydroxyapatite powder reacted with a chemical-active, solvent-free, alkyd-based polyurethane. This porous material has interconnected pores with sizes between 100 and 350 µm and a pore volume fraction of 50%, fulfilling the requirements for implants. The biomaterial additionally has high wearing resistance and hydrolytic stability providing high endurance properties. The bio-package was characterized mechanically and morphologically using X-ray diffraction, scanning electron microscopy, densitometry, abrasion and mechanical tests. Twelve packaged micro-electro-mechanical systems were implanted subcutaneously into rats and tested for up to 9 months with good acceptance as revealed by the histological analysis performed on the soft tissue surrounding each implant. © Koninklijke Brill NV, Leiden, 2012.
Filiaciones:
Rodriguez R.:
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76230, Qro, Mexico
Loske A.M.:
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76230, Qro, Mexico
Estevez M.:
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76230, Qro, Mexico
Vargas S.:
Univ Nacl Autonoma Mexico, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76230, Qro, Mexico
Salazar R.:
Laboratorio de MEMS y CSAT, Universidad Popular Autónoma del Estado de Puebla, Puebla, Pue. 72160, Mexico
Pacheco F.:
Laboratorio de MEMS y CSAT, Universidad Popular Autónoma del Estado de Puebla, Puebla, Pue. 72160, Mexico
Vazquez-Carpizo J.:
Hospital Ángeles de Querétaro, Querétaro, Qro. 76178, Mexico
Gamboa J.M.:
Laboratorio de Anatomía Patológica y Citología de Querétaro, Querétaro, Qro. 76020, Mexico
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