الفهرس 
Introduction and Aim of workOnly 14 pages are availabe for public view
 |  | from | 212 |  |  |
| | | from | 212 | | |
Abstract
The basic aim is to introduce a biocompatible material that matches hard tissue like long bone or teeth. This was done by extracting, with using alkaline treatment, β-CS from squid pens (Loligo Vulgaris) which is different in spatial structure and slight varies from the commercial available α-CS. This technique is capable of producing β-CS with high degree of deacetylation. All of previous studies deal with α-CS but this work introduces for the first time β-Cs in a combination with different proportions of nano-hydroxyapatite (n-HA). Hence a new series of nanocomposites materials are studied.
CS/n-HA composites with different ratios were prepared using in-situ co-precipitation method. This method helps in overcome the problem of aggregation of HA when it reaches nano- scale.Their structural characteristics were investigated using FTIR, TGA, DSC, XRD, and EDS. The surface morphology of the nanocomposites was also examined using SEM, and TEM. Besides, the mechanical properties of the nanocomposites scaffolds were studied through measuring their compressive strength.
Key words: (not more than Ten):
1. Fourier Transform Infra-Red (FT-IR) Spectroscopy.
2. X-ray diffraction measurements.
3. Scanning electron microscope (SEM) equipped with energy dispersive X-ray (EDX) analysis.
4. Transmission electron microscope (TEM).
5. Compressive strength testing.
6. Thermo-gravimetric analysis (TGA, DTGA).
7. Differential scanning calorimetric analysis (DSC).