Fabric-mechanical property relationships of trabecular bone allografts are altered by supercritical CO2 treatment and gamma sterilization

Bone ◽  
2011 ◽  
Vol 48 (6) ◽  
pp. 1370-1377 ◽  
Author(s):  
J.J. Schwiedrzik ◽  
K.-H. Kaudela ◽  
U. Burner ◽  
P.K. Zysset
Keyword(s):  
Mechanical Property ◽  
Trabecular Bone ◽  
Supercritical Co2 ◽  
Bone Allografts ◽  
Co2 Treatment

Non-Invasive Analysis of the Micro-Structural and Biomechanical Properties of Trabecular Bone in Human Femoral Head

2006 ◽  
Vol 321-323 ◽  
pp. 1070-1073
Author(s):  
Ye Yeon Won ◽  
Myong Hyun Baek ◽  
Wen Quan Cui ◽  
Kwang Kyun Kim
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Femoral Head ◽  
Trabecular Bone ◽  
Volume Fraction ◽  
Reaction Force ◽  
Bone Volume ◽  
Fe Model ◽  
Micro Ct ◽  
Trabecular Thickness

This study investigates micro-structural and mechanical properties of trabecular bone in human femoral head with and without osteoporosis using a micro-CT and a finite element model. 15 cored trabecular bone specimens with 20 of diameter were obtained from femoral heads with osteoporosis resected for total hip arthroplasty, and 5 specimens were removed from femoral head of cadavers, which has no history of musculoskeletal diseases. A high-resolution micro-CT system was used to scan each specimen to obtain histomorphometry indexes. Based on the micro-images, a FE-model was created to determine mechanical property indexes. While the non-osteoporosis group had increases the trabecular thickness, the bone volume, the bone volume fraction, the degree of anisotropy and the trabecular number compared with those of osteoporotic group, the non-osteoporotic group showed decreases in trabecular separation and structure model index. Regarding the mechanical property indexes, the reaction force and the Young's modulus were lower in the osteoporotic group than in non-osteoporotic group. Our data shows salient deteriorations in trabecular micro-structural and mechanical properties in human femoral head with osteoporosis.

Frozen Homologous Trabecular Bone Allografts: 12-Years’ Experience with Banking and Clinical Use

1989 ◽  
pp. 329-330
Author(s):  
G. U. Exner ◽  
A. R. Goldmann ◽  
M. Nottebaert ◽  
A. Schreiber
Keyword(s):  
Trabecular Bone ◽  
Clinical Use ◽  
Bone Allografts

scholarly journals Effect of supercritical CO2 treatment and kiln drying on collapse in Eucalyptus nitens wood

2020 ◽  
Vol 78 (2) ◽  
pp. 209-217 ◽  
Author(s):  
Bernard S. W. Dawson ◽  
Hamish Pearson ◽  
Mark O. Kimberley ◽  
Bruce Davy ◽  
Alan R. Dickson
Keyword(s):  
Supercritical Co2 ◽  
Eucalyptus Nitens ◽  
Kiln Drying ◽  
Co2 Treatment

scholarly journals Curing and degradation processes of cement-bonded particleboard by supercritical CO2 treatment

2011 ◽  
Vol 57 (4) ◽  
pp. 302-307 ◽  
Author(s):  
Rohny Setiawan Maail ◽  
Kenji Umemura ◽  
Hideo Aizawa ◽  
Shuichi Kawai
Keyword(s):  
Supercritical Co2 ◽  
Degradation Processes ◽  
Co2 Treatment

Effect of supercritical CO2 treatment on physical properties and functional groups of shales

Fuel ◽  
2021 ◽  
Vol 303 ◽  
pp. 121310
Author(s):  
Ahmed Fatah ◽  
Hisham Ben Mahmud ◽  
Ziad Bennour ◽  
Mofazzal Hossain ◽  
Raoof Gholami
Keyword(s):  
Physical Properties ◽  
Functional Groups ◽  
Supercritical Co2 ◽  
Co2 Treatment

Reduction of gelatinization temperatures of starch blend suspensions with supercritical CO2 treatment

2014 ◽  
Vol 95 ◽  
pp. 499-505 ◽  
Author(s):  
I.S.M. Zaidul ◽  
T. Noda ◽  
K.M. Sharif ◽  
A.A. Karim ◽  
R.L. Smith
Keyword(s):  
Supercritical Co2 ◽  
Co2 Treatment

Effects of supercritical CO2 treatment time, pressure, and temperature on microstructure of shale

Energy ◽  
2016 ◽  
Vol 97 ◽  
pp. 173-181 ◽  
Author(s):  
Yongdong Jiang ◽  
Yahuang Luo ◽  
Yiyu Lu ◽  
Chao Qin ◽  
Hui Liu
Keyword(s):  
Supercritical Co2 ◽  
Time Pressure ◽  
Treatment Time ◽  
Co2 Treatment

Properties of Enzymatic Hydrolysis Corn Starch Sizing Agent Modified in Supercritical Carbon Dioxide

2011 ◽  
Vol 332-334 ◽  
pp. 2103-2107
Author(s):  
Yue Juan Wang ◽  
Hong Jun Fu
Keyword(s):  
Carbon Dioxide ◽  
Enzymatic Hydrolysis ◽  
Water Content ◽  
Supercritical Co2 ◽  
Corn Starch ◽  
Enzymatic Reaction ◽  
Variance Ratio ◽  
Optimum Water Content ◽  
Co2 Treatment ◽  
Optimum Water

This paper describes an experiment of Corn starch treatment with α-amylase under the condition of supercritical CO2 at 50°C, 11MPa, and investigates the effects of different water content on supercritical CO2 treatment of corn starch. The results demonstrate that the viscosity of the treated starch is much lower than that of untreated starch, as well as the variance ratio of the viscosity is up to 96%. The optimum water content for the degradation of the enzymatic reaction is 2%;when water content is up to 3%, the viscosity of the serosity is 5Mpa•s, and the sizing performance reaches the best.

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