Multiscale design of artificial bones with biomimetic elastic microstructures

2020 ◽  
Vol 108 ◽  
pp. 103748 ◽  
Author(s):  
Lucas Colabella ◽  
Adriáan Cisilino ◽  
Victor Fachinotti ◽  
Carlos Capiel ◽  
Piotr Kowalczyk
Keyword(s):  
Artificial Bones

Stereolithographic Additive Manufacturing of Bulky Ceramic Components with Functionally Geometric Micropattern

2016 ◽  
Vol 2016 (CICMT) ◽  
pp. 000001-000005
Author(s):  
Soshu Kirihara
Keyword(s):  
Additive Manufacturing ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Porous Electrodes ◽  
Beam Diameter ◽  
Cross Sectional ◽  
Geometric Patterns ◽  
Artificial Bones ◽  
Cad Cam

Abstract In a stereolithographic additive manufacturing (AM), two dimensional (2D) cross sectional patterns were created through photo polymerization by ultraviolet laser drawing on spread resin paste including ceramic nanoparticles, and three dimensional (3D) composite models were sterically printed by layer lamination through chemical bonding. An automatic collimeter was equipped with the laser scanner to adjust beam diameter. Fine or coarse beams could realize high resolution or wide area drawings, respectively. Metal and ceramic bulky components including dendritic networks were geometrically built by using stereolithographic AM. Geometric patterns with periodic, self-similar, graded and fluctuated arrangements were created by computer aided design, manufacture and evaluation (CAD/CAM/CAE) for effective modulations of energy and material flows through dielectric lattices in photonic crystals, porous electrodes in fuel cells and biological scaffolds in artificial bones.

Resomer C212© in vertebroplasty or kyphoplasty: A feasibility study on artificial bones with biomechanical and thermal evaluation

2020 ◽  
pp. 1-8
Author(s):  
Axel Greiner ◽  
Anne Bongartz ◽  
Matthias Woiczinski ◽  
Nima Befrui ◽  
Oliver Pieske ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Artificial Bones

scholarly journals Recent Studies and Developments in Titanium Biomaterials

2020 ◽  
Vol 321 ◽  
pp. 02004
Author(s):  
M. Ikedaa ◽  
M. Ueda ◽  
M. Ninomi
Keyword(s):  
Health Care ◽  
Additive Manufacturing ◽  
Titanium Alloys ◽  
Young’S Modulus ◽  
Young's Modulus ◽  
Layer By Layer ◽  
Metal Powders ◽  
Alloy Development ◽  
Dental Surgery ◽  
Artificial Bones

Titanium and its alloys have a high specific strength, excellent corrosion resistance, and good biocompatibility. Therefore, these alloys are adopted as raw materials for artificial bones and joints. Furthermore, these alloys are used as materials for dental surgery. In the development of alloy design, beta-type titanium alloys that possess a lower Young’s modulus than other types of titanium alloys, e.g., Ti-6Al-4V alpha-beta-type alloys, are being actively investigated worldwide. Based on these studies, titanium-niobium-tantalum and zirconium system alloys were developed. For example, Ti-29Nb-13Ta-4.6Zr alloy has a low Young’s modulus, excellent biocompatibility, and improved mechanical properties. Many researchers are actively investigating surface modifications and surface treatments. Additive manufacturing, namely 3D printing, wherein metal powders are piled up layer by layer to produce goods without a mold, has attracted attention in many fields, including manufacture of implants, especially porous structural implants with a low Young’s modulus. It is very important that titanium and its alloys be applied to health-care goods, e.g., wheelchairs and prostheses. Therefore, we herein consider four topics: alloy development, coating and surface modification, additive manufacturing, and health care applications.

scholarly journals Influence of Orthodontic Anchor Screw Anchorage Method on the Stability of Artificial Bone: An In Vitro Study

Materials ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3205 ◽  
Author(s):  
Seen-Young Kang ◽  
Ji-Min Yu ◽  
Hyoung-Sik Kim ◽  
Jun-Seok Lee ◽  
Chan-Mi Yeon ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Automatic Device ◽  
Insertion Torque ◽  
Artificial Bone ◽  
Artificial Bones ◽  
Significant Difference ◽  
The Mean ◽  
The Stability ◽  
Torque Values

This study aims to compare the torque values for various lengths of the titanium-based orthodontic anchor screw (OAS), different anchorage methods and varying artificial bone densities after predrilling. Furthermore, the effects of these parameters on bone stability are evaluated. A total of 144 OASs were prepared with a diameter of 1.6 mm and heights of 6, 8 and 10 mm. Artificial bones were selected according to their density, corresponding to Grades 50, 40 and 30. Torque values for the automatic device and manual anchorage methods exhibited a statistically significant difference for the same-sized OAS, according to the bone density of the artificial bones (p < 0.05). However, when insertion torque was at the maximum rotations, there was no significant difference in the torque values for the Grade 30 artificial bone (p > 0.05). When the torque values of both anchorage methods were statistically compared with the mean difference for each group, the results of the manual anchorage method were significantly higher than those of the automatic device anchorage method (p < 0.05). A statistically significant difference was observed in the bone stability resulting from different OAS anchorage methods and artificial bone lengths. These findings suggest that the automatic anchorage method should be used when fixing the OAS.

scholarly journals Preparation of highly functional artificial bones using the properties of calcium phosphates

2011 ◽  
Vol 119 (1388) ◽  
pp. 266-270
Author(s):  
Masanobu KAMITAKAHARA
Keyword(s):  
Calcium Phosphates ◽  
Artificial Bones

Preparation and Performance Analysis of Mesh Hydroxyapatite/Sodium Alginate Composite Scaffold

2015 ◽  
Vol 1119 ◽  
pp. 239-244
Author(s):  
Yan Xu ◽  
Jian Pin Zhou ◽  
Zheng Ying Wei ◽  
Li Yan Dang ◽  
Feng Lin Wu
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Sodium Alginate ◽  
Composite Scaffold ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Artificial Bones ◽  
Key Factor ◽  
And Performance

Scaffolds material is the key factor for bone tissue engineering, and construction of the scaffolds is also an important part. Adopting the biocompatible, biodegradable, hydroxyapatite (HAP) and sodium alginate (SA) as the molding material, using three-dimensional printing technology, choosing cross grid filling paths, we manufactured the artificial bones through self-developed 3D printing equipment. Then we measured and analyzed important parameters of the work, and did composite culture experiment. It can be seen that the prepared artificial bone scaffold has good biocompatibility. The paper provides a reference for the study of bone tissue engineering materials.

scholarly journals Implantation of Tetrapod-Shaped Granular Artificial Bones or β-Tricalcium Phosphate Granules in a Canine Large Bone-Defect Model

2014 ◽  
Vol 76 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Sungjin CHOI ◽  
I-Li LIU ◽  
Kenichi YAMAMOTO ◽  
Muneki HONNAMI ◽  
Takamasa SAKAI ◽  
...  
Keyword(s):  
Bone Defect ◽  
Tricalcium Phosphate ◽  
Defect Model ◽  
Large Bone Defect ◽  
Artificial Bones ◽  
Large Bone

BIOBOARD

2011 ◽  
Vol 15 (07) ◽  
pp. 5-13
Keyword(s):  
Mental Health ◽  
Liver Disease ◽  
Fatty Liver Disease ◽  
University Of Pennsylvania ◽  
Brain Cells ◽  
Ross River Virus ◽  
Health Law ◽  
Artificial Bones ◽  
Chinese Academy Of Sciences ◽  
Academy Of Sciences

AUSTRALIA – Australia Lifts Transplant Rate. AUSTRALIA – Tamarind Derivative Repairs Damaged Brain Cells. AUSTRALIA – High Hopes for Ross River Virus Vaccine. AUSTRALIA – Genetic Link to Risk of Developing Bone Disease. AUSTRALIA – Edible Vaccine in the Works. CHINA – China Mulls New Mental Health Law. CHINA – University of Pennsylvania Pairs up with Chinese Academy of Sciences for Neuroimaging. INDIA – Vaccine Tests for Brain Virus. KOREA – New Technique Makes Artificial Bones More Natural. KOREA – Scientists Develop Magnetic Nanoparticles that Kill Cancer Cells. SINGAPORE – IE Singapore Forms Biomedical R&D Consortium. VIETNAM – Fatty Liver Disease on the Rise Among Youth. OTHER REGIONS — New Clues to How Cancer Spreads. OTHER REGIONS — Scientists Find Genes Linked to Migraines. OTHER REGIONS — New Drug Makes Hearts Repair Themselves.

scholarly journals Evaluation of mechanical strengths of three types of mini-implants in artificial bones

2017 ◽  
Vol 33 (2) ◽  
pp. 96-101
Author(s):  
Yu-Chuan Tseng ◽  
Ju-Hui Wu ◽  
Chun-Chan Ting ◽  
Hong-Sen Chen ◽  
Chun-Ming Chen
Keyword(s):  
Mini Implants ◽  
Artificial Bones ◽  
Mechanical Strengths

scholarly journals PERCEPTION OF MEDICAL STUDENTS TOWARDS ARTIFICIAL BONES AND MODELS OF VISCERA

2019 ◽  
Vol 04 (07) ◽  
pp. 297-300
Author(s):  
Jawid Azizi ◽  
Hidayatullah Danish ◽  
Saniullah Zalmai ◽  
Enamul haq Moneeb
Keyword(s):  
Medical Students ◽  
Artificial Bones
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