학술논문

Improved Corrosion Resistance, Mechanical Stability and Biocompatibility of Functionalized Multiwall Carbon Nanotube Incorporated Calcium-Deficient Apatite for Orthopedic and Dental Applications
Document Type
Original Paper
Source
Biomedical Materials & Devices. 1(1):512-523
Subject
β-Tricalcium phosphate
Multiwall carbon nanotube
Composite
Corrosion
Hardness
Language
English
ISSN
2731-4812
2731-4820
Abstract
This report describes the successful development of functionalized multiwall carbon nanotube (MWCNT) incorporated β-tricalcium phosphate (β-TCP) by typical physical method and its coatings on medical grade 316L SS (316L Stainless Steel) substrate for orthopedic and dental applications. The synthesized material was confirmed by physical and analytical techniques. The improved adhesion property was clearly shown in the field emission scanning electron microscopy (FESEM) cross-sectional view. The Brunauer–Emmett–Teller (BET) analysis reveals the intact nature of the coating on the metal surface with reduced pore size which drastically improves the protective nature of the coating in the aggressive physiological environment the obtained corrosion kinetic parameters also support the observation. The results obtained from the hardness tests and thermogravimetric analysis revealed the information about the mechanical stability (7.1 GPa) and thermal stability of the developed materials. The apatite formation ability tested in the simulated body fluid demonstrates that the developed materials are potential enough to use it as a biomaterial to correct and repair the hard tissue defects.Graphical Abstract:

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