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The Effect of Coating Type on Mechanical Properties and Controlled Drug Release of Pcl/Zein Coated 45S5 Bioactive Glass Scaffolds for Bone Tissue Engineering Publisher Pubmed



Fereshteh Z1, 2, 3 ; Nooeaid P1 ; Fathi M3, 4 ; Bagri A5 ; Boccaccini AR1
Authors
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Authors Affiliations
  1. 1. Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstrasse 6, Erlangen, 91058, Germany
  2. 2. Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, 76315117, Iran
  3. 3. Biomaterials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, 8415683111, Iran
  4. 4. Dental Materials Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
  5. 5. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, 02139, MA, United States

Source: Materials Science and Engineering C Published:2015


Abstract

A highly investigated branch of tissue engineering involves the implantation of a highly porous biomaterial scaffold populated with appropriate cells to provide a three-dimensional (3D) environment in which new tissue can grow. As a drawback, the mechanical properties of foam-like BG-based scaffolds are in general poor in terms of strength and toughness for bone tissue engineering applications. Polymer coatings have been proposed to toughen brittle scaffolds, which can be achieved by the formation of a surface coating and by impregnation of microcracks and surface pores with a suitable polymer. The Fourier transform infrared (FTIR) spectra of different scaffolds were recorded on a Nicolet 6700 FTIR spectrometer in transmittance mode in the mid infrared region. Amounts of the released drugs at specified time periods were plotted as percentage of drug released versus time. The drug release evaluation was performed using 5 samples for each time up to 14 days and obtained results were expressed as the mean values and standard deviations.
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