Bone Implant Materials from Eggshell Waste

2015 ◽  
Vol 776 ◽  
pp. 282-288
Author(s):  
Iis Sopyan
Keyword(s):  
Hydrothermal Reaction ◽  
Hydrogen Phosphate ◽  
Bone Implant ◽  
Implant Materials ◽  
Hydroxyapatite Powder ◽  
Straightforward Method ◽  
Primary Particles ◽  
Pure Phase ◽  
Phosphate Phase ◽  
Eggshell Waste

Hydroxyapatite powder has been synthesized from eggshell waste using a simple hydrothermal synthesis. The process involved drying and thermal decomposition of eggshell into calcium oxide followed by a hydrothermal reaction at a temperature of as low as 90°C with ammonium di-hydrogen phosphate and water. The produced hydroxyapatite powder is extraordinarily fine with nanosize primary particles. The yield of conversion is high, ca. 90%. Hydroxyapatite pure phase can be maintained until calcination of below 900°C, at which β-tricalcium phosphate phase started to appear to transform into biphasic calcium phosphate. Its high purity as proved by XRD shown that the product fulfills medical requirement. The present invention provides an environmentally beneficial and straightforward method of producing hydroxyapatite for bone implant materials using eggshell waste.

Characteristic of Eggshell in Substitution of Hydroxyapatite in Biomedical Appliances

2013 ◽  
Vol 651 ◽  
pp. 216-220 ◽  
Author(s):  
Syed Mohd Hasif Wafa Bin Syed Mohd Hassan ◽  
Amalina Binti Amir ◽  
Robi Arsam Bin Arman ◽  
Saiful Bahari Bin Mohd Latif ◽  
Muhammad Abdul Hakim Hashim ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Hydrothermal Reaction ◽  
Raw Material ◽  
Hydrogen Phosphate ◽  
Bone Material ◽  
Natural Bone ◽  
Ammonium Hydrogen ◽  
Ammonium Hydrogen Phosphate ◽  
Materials Used ◽  
Eggshell Waste

Hydroxyapatite (HAp) is one of the most versatile materials used for implantation purpose due to its similarity to natural bone material with a composition around 70% of our bone. Not only that, it is regarded as attractive biomedical materials because of their outstanding bioactivities and non toxicity. The purposes of this particular project are mainly to produce HAp powder by utilizing eggshell waste as its main raw material as well as to study the effectiveness of eggshell substitution in HAp on mechanical behaviour. The process involves drying and thermal decomposition of eggshell followed by hydrothermal reaction at low temperature with di-ammonium hydrogen phosphate and water. After that, the next process that takes place will involve compacting of the powder at pressure of 80 kg/cm2and sintering at temperature of 900-1300oC. Therefore, by using the suitable synthesizing method together with the workable sintering schedule for each synthesizing process, the optimized microstructure and properties of sintered HAp can be prepared.

scholarly journals Engineering Bone-Implant Materials

2019 ◽  
Vol 6 (2) ◽  
pp. 51 ◽  
Author(s):  
Mohammad Elahinia ◽  
Hamdy Ibrahim ◽  
Mohammad Javad Mahtabi ◽  
Reza Mehrabi
Keyword(s):  
Experimental Studies ◽  
Special Issue ◽  
Bone Implant ◽  
Implant Materials ◽  
Biomechanical Behavior

This special issue is dedicated to the simulation as well as experimental studies of biomechanical behavior of biomaterials, especially those that are used for bone implant applications [...]

scholarly journals Influence of Physicochemical Aspects of Substratum Nanosurface on Bacterial Attachment for Bone Implant Applications

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Kun Mediaswanti
Keyword(s):  
Biofilm Formation ◽  
Bacterial Attachment ◽  
Nanostructured Surface ◽  
Bone Implant ◽  
Implant Materials ◽  
Periprosthetic Infections

Biofilm formation on implant materials is responsible for periprosthetic infections. Bacterial attachment is important as the first stage in biofilm formation. It is meaningful to understand the influence of nanostructured surface on bacterial attachment. This review discusses the influence of physicochemical aspects of substratum nanosurface on bacterial attachment.

The effect of glass-ceramic bone implant materials on thein vitro formation of hydroxyapatite

1988 ◽  
Vol 22 (11) ◽  
pp. 1033-1041 ◽  
Author(s):  
N. C. Blumenthal ◽  
A. S. Posner ◽  
V. Cosma ◽  
U. Gross
Keyword(s):  
Glass Ceramic ◽  
Bone Implant ◽  
Implant Materials

Biodegradable Mg–Zr–Ca alloys for bone implant materials

2012 ◽  
Vol 27 (1) ◽  
pp. 49-51 ◽  
Author(s):  
Y C Li ◽  
C S Wong ◽  
C Wen ◽  
P D Hodgson
Keyword(s):  
Bone Implant ◽  
Implant Materials

scholarly journals New Hybrid Bioactive Composites for Bone Substitution

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 335 ◽  
Author(s):  
Anna Ślósarczyk ◽  
Joanna Czechowska ◽  
Ewelina Cichoń ◽  
Aneta Zima
Keyword(s):  
Phase Composition ◽  
Physicochemical Properties ◽  
Mechanical Strength ◽  
Organic Materials ◽  
Setting Time ◽  
Bone Substitutes ◽  
Bone Implant ◽  
Load Bearing ◽  
Implant Materials ◽  
Bioactive Composites

Recently, intensive efforts have been undertaken to find new, superior biomaterial solutions in the field of hybrid inorganic–organic materials. In our studies, biomicroconcretes containing hydroxyapatite (HAp)–chitosan (CTS) granules dispersed in an α tricalcium phospahate (αTCP) matrix were investigated. The influence of CTS content and the size of granules on the physicochemical properties of final bone implant materials (setting time, porosity, mechanical strength, and phase composition) were evaluated. The obtained materials were found to be promising bone substitutes for use in non-load bearing applications.

scholarly journals Investigation of Mg–xLi–Zn alloys for potential application of biodegradable bone implant materials

2021 ◽  
Vol 32 (4) ◽  
Author(s):  
Jingan Li ◽  
Panyu Zhou ◽  
Liguo Wang ◽  
Yachen Hou ◽  
Xueqi Zhang ◽  
...  
Keyword(s):  
Tumor Cells ◽  
Residual Tumor ◽  
Dependent Manner ◽  
Concentration Dependent Manner ◽  
Bone Implant ◽  
Implant Materials ◽  
Potential Development ◽  
Implant Therapy ◽  
Biodegradable Magnesium ◽  
Zn Alloy

AbstractImplant therapy after osteosarcoma surgery is a major clinical challenge currently, especially the requirements for mechanical properties, degradability of the implants, and their inhibition of residual tumor cells. Biodegradable magnesium (Mg) alloy as medical bone implant material has full advantages and huge potential development space. Wherein, Mg–lithium (Li) based alloy, as an ultra-light alloy, has good properties for implants under certain conditions, and both Mg and Li have inhibitory effects on tumor cells. Therefore, Mg–Li alloy is expected to be applied in bone implant materials for mechanical supporting and inhibiting tumor cells simultaneously. In this contribution, the Mg–xLi–Zinc (Zn) series alloys (x = 3 wt%, 6 wt%, 9 wt%) were prepared to study the influence of different elements and contents on the structure and properties of the alloy, and the biosafety of the alloy was also evaluated. Our data showed that the yield strength, tensile strength, and elongation of as-cast Mg–xLi–Zn alloy were higher than those of as-cast Mg–Zn alloy; Mg–xLi–Zn alloy can kill osteosarcoma cells (MG-63) in a concentration-dependent manner, wherein Mg–3Li–Zn alloy (x = 3 wt%) and Mg–6Li–Zn alloy (x = 6 wt%) promoted the proliferation of osteoblasts (MC3T3) at a certain concentration of Li. In summary, our study demonstrated that the Mg–6Li–Zn alloy could be potentially applied as a material of orthopedic implant for its excellent multi-functions.

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