NDLI: The fabrication of nanocomposites via calcium phosphate formation on gelatin-chitosan network and the gelatin influence on the properties of biphasic composites.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Babaei, Zahra Jahanshahi, Mohsen Rabiee, Sayed Mahmood
Description	Country affiliation: Iran Author Affiliation: Babaei Z ( Nanotechnology Research Institute, School of Chemical Engineering, Babol University of Technology, Babol, Iran.); Jahanshahi M ( Nanotechnology Research Institute, School of Chemical Engineering, Babol University of Technology, Babol, Iran. Electronic address: mjahan@nit.ac.ir.); Rabiee SM ( Nanotechnology Research Institute, School of Chemical Engineering, Babol University of Technology, Babol, Iran)
Abstract	A novel biodegradable polymer-ceramic nanocomposite which consisted of gelatin (Gel), chitosan (CS), and calcium phosphate (CaP) nanoparticles was prepared based on in situ preparation method. The fabricated biocomposites were characterized by FTIR, X-ray diffraction (XRD), transmission electron microscopy (TEM) as well as scanning electron microscope with X-ray elemental analysis (SEM-EDX). The characterization results confirmed that the crystalline calcium phosphate nanoparticles were mineralized in polymeric matrix and the interaction between Ca2+ in calcium phosphate and functional groups in polymers molecular chains was formed. XRD result showed that in addition to hydroxyapatite (HA), Brushite (BR) and tricalcium phosphate (ß-TCP) particles also were formed due to lack of complete penetration of the basic solution into the polymeric matrix. However, SEM image indicated that the polymeric matrix has the controlling role in the particle size of calcium phosphate. The size of particles in three component composites was about 100nm while in two component composites proved to be more in µm size. TEM observation supported SEM results and showed that the three component composites have calcium phosphate nanoparticles. The elastic modulus and compressive strength of the composites were also improved by the employment of gelatin and chitosan together, which can make them more beneficial for surgical applications.
File Format	HTM / HTML
ISSN	09284931
Issue Number	1
Volume Number	33
e-ISSN	18730191
Journal	Materials Science and Engineering: C
Language	English
Publisher	Elsevier
Publisher Date	2013-01-01
Publisher Place	Netherlands
Access Restriction	Subscribed
Subject Keyword	Discipline Materials Science Calcium Phosphates Chemistry Chitosan Gelatin Nanocomposites Compressive Strength Durapatite Microscopy, Electron, Scanning Microscopy, Electron, Transmission Nanoparticles Particle Size Spectroscopy, Fourier Transform Infrared X-ray Diffraction Journal Article
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Biomaterials Condensed Matter Physics Bioengineering Mechanical Engineering

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