کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10159869 | 59 | 2013 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design and characterization of biofunctional magnetic porous silicon flakes
ترجمه فارسی عنوان
طراحی و مشخصه فلکس سیلیکون متخلخل مغناطیسی بیوفیزیکی مغناطیسی
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کلمات کلیدی
فلکس مغناطیسی، سیلیکون متخلخل، نانوذرات اکسید آهن، شبکیه جدا شده
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی
Magnetic porous silicon flakes (MPSF) were obtained from mesoporous silicon layers formed by multi-step anodization and subsequent composite formation with Fe oxide nanoparticles by thermal annealing. The magnetic nanoparticles adhered to the surface and penetrated inside the pores. Their structure evolved as a result of the annealing treatments derived from X-ray diffraction and X-ray absorption analyses. Moreover, by tailoring the magnetic load, the dynamic and hydrodynamic properties of the particles were controlled, as observed by the pressure displayed against a sensor probe. Preliminary functionality experiments were performed using an eye model, seeking potential use of MPSF as reinforcement for restored detached retina. It was observed that optimal flake immobilization is obtained when the MPSF reach values of magnetic saturation >10â4Â AÂ m2Â gâ1. Furthermore, the MPSF were demonstrated to be preliminarily biocompatible in vitro. Moreover, New Zealand rabbit in vivo models demonstrated their short-term histocompatibility and their magnetic functionality as retina pressure actuators.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Biomaterialia - Volume 9, Issue 4, April 2013, Pages 6169-6176
Journal: Acta Biomaterialia - Volume 9, Issue 4, April 2013, Pages 6169-6176
نویسندگان
A. Muñoz Noval, R. GarcÃa, D. Ruiz Casas, D. Losada Bayo, V. Sánchez Vaquero, V. Torres Costa, R.J. MartÃn Palma, M.A. GarcÃa, J.P. GarcÃa Ruiz, J.J. Serrano Olmedo, J.F. Muñoz Negrete, F. del Pozo Guerrero, M. Manso Silván,