Effect of Zn and NH4HCO3 on degradation rate and mechanical properties of porous Mg-Zn alloys for degradable biomaterials

2018 ◽  
Author(s):  
J. N. R. Suprihartini ◽  
A. Purniawan ◽  
S. T. Wicaksono ◽  
R. Nuryadi
Keyword(s):  
Mechanical Properties ◽  
Degradation Rate ◽  
Degradable Biomaterials ◽  
Zn Alloys

Effect of extrusion conditions on microstructure and mechanical properties of microalloyed Mg–Sn–Al–Zn alloys

2013 ◽  
Vol 588 ◽  
pp. 318-328 ◽  
Author(s):  
F.R. Elsayed ◽  
T.T. Sasaki ◽  
T. Ohkubo ◽  
H. Takahashi ◽  
S.W. Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Zn Alloys

In Vitro and In Vivo Degradation, Mechanical Properties, and Histocompatibility of Weft-Knitted Silk Mesh-Like Grafts

2022 ◽  
Vol 12 (2) ◽  
pp. 411-416
Author(s):  
Liang Tang ◽  
Si-Yu Zhao ◽  
Ya-Dong Yang ◽  
Geng Yang ◽  
Wen-Yuan Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Degradation Rate ◽  
Maximum Load ◽  
Artificial Ligament ◽  
In Vivo Degradation

To investigate the degradation, mechanical properties, and histocompatibility of weft-knitted silk mesh-like grafts, we carried out the In Vitro and In Vivo silk grafts degradation assay. The In Vitro degradation experiment was performed by immersing the silk grafts in simulated body fluid for 1 year, and the results showed that the degradation rate of the silk mesh-like grafts was very slow, and there were few changes in the mechanical properties and quality of the silk mesh-like graft. In Vivo degradation assay was taken by implantation of the silk mesh-like grafts into the subcutaneous muscles of rabbits. At 3, 6, and 12 months postoperation, the rate of mass loss was 19.36%, 31.84%, and 58.77%, respectively, and the maximum load was 63.85%, 34.63%, and 10.76%, respectively of that prior to degradation. The results showed that the degradation rate of the silk graft and the loss of mechanical properties In Vivo were faster than the results obtained in the In Vitro experiments. In addition, there were no significant differences in secretion of serum IL-6 and TNF-α between the experimental and normal rabbits (P >0.05), suggesting no obvious inflammatory reaction. The findings suggest that the weft-knitted silk mesh-like grafts have good mechanical properties, histocompatibility, and In Vivo degradation rate, and therefore represent a candidate material for artificial ligament

Characterization of Microstructure and Mechanical Properties of Mg-Y-Zn Alloys with Respect to Different Content of LPSO Phase

2017 ◽  
Vol 20 (1) ◽  
pp. 1700396 ◽  
Author(s):  
Klaudia Horváth ◽  
Daria Drozdenko ◽  
Stanislav Daniš ◽  
Gerardo Garcés ◽  
Kristián Máthis ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lpso Phase ◽  
Microstructure And Mechanical Properties ◽  
Different Content ◽  
Zn Alloys

Effect of microalloying with Ca on the microstructure and mechanical properties of Mg-6 mass%Zn alloys

2016 ◽  
Vol 98 ◽  
pp. 285-293 ◽  
Author(s):  
Y.Z. Du ◽  
X.G. Qiao ◽  
M.Y. Zheng ◽  
D.B. Wang ◽  
K. Wu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Zn Alloys

Bioresorbable Composites and Implant

2019 ◽  
pp. 57-76
Author(s):  
Divya Zindani
Keyword(s):  
Mechanical Properties ◽  
Surface Modification ◽  
Degradation Rate ◽  
Clinical Applications ◽  
The Body ◽  
Metal Alloys ◽  
Medical Sciences ◽  
Intended Function ◽  
Wide Range ◽  
Modification Rate

Different biomaterials in the form of ceramics, metal alloys, composites, glasses, polymers, etc. have gained wide-range acceptance in the realm of medical sciences. Bioimplants from such biomaterials have been constructed and used widely for different clinical applications. With the continual progress, biomaterials that may be resorbed inside the body have been developed. These have done away with the major challenge of removal of an implant after it has served its intended function. Important factors are taken into consideration in design and development of implants from such biomaterials are mechanical properties, degradation rate, surface modification, rate of corrosion, biocompatibility, and non-toxicity. Given the importance of such materials in clinical applications, the chapter presents an overview of the bioresorable composites and their implants. The related properties and the functions served have been outlined briefly. Further, the challenges associated and the remedies to overcome them have also been delineated.

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