M
M. E. Roy
Researcher at University of Memphis
Publications - 7
Citations - 905
M. E. Roy is an academic researcher from University of Memphis. The author has contributed to research in topics: Nanoindentation & Osteocalcin. The author has an hindex of 6, co-authored 7 publications receiving 866 citations.
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Journal ArticleDOI
Elastic properties of microstructural components of human bone tissue as measured by nanoindentation
TL;DR: The elastic properties of several microstructural components of dry human vertebrae and tibiae have been investigated in the longitudinal and transverse directions using nanoindentation and an ANOVA statistical analysis revealed that the values all are significantly different (p < 0.05).
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Anisotropic properties of human tibial cortical bone as measured by nanoindentation.
Zaifeng Fan,John G Swadener,John G Swadener,J. Y. Rho,M. E. Roy,George M. Pharr,George M. Pharr +6 more
TL;DR: Results show that the effects of anisotropy on nanoindentation measurements can be quantitatively evaluated and are shown to exhibit the same trends as the corrected Mexp data.
Journal ArticleDOI
Mechanical and morphological variation of the human lumbar vertebral cortical and trabecular bone.
TL;DR: The nanoindentation technique was used to characterize the variation in the elastic modulus and hardness of human lumbar vertebral cortical and trabecular bone, and it was difficult to differentiate by morphology cortical from trabECular bone in the human lumbsar vertebrae.
Journal ArticleDOI
Matrix Gla protein binding to hydroxyapatite is dependent on the ionic environment: calcium enhances binding affinity but phosphate and magnesium decrease affinity.
M. E. Roy,Satoru Nishimoto +1 more
TL;DR: Plasmin-digested MGP decreased HA binding parameters by almost a third, showing that protein binding and limited proteolysis greatly affected HA binding, and MGP binding to HA is sensitive to protein binding, limited proteochemistry, and the surrounding ionic environment.
Journal ArticleDOI
Correlations between osteocalcin content, degree of mineralization, and mechanical properties of C. Carpio rib bone
M. E. Roy,Satoru K. Nishimoto,J. Y. Rho,Syamal K. Bhattacharya,J. S. Lin,George M. Pharr,George M. Pharr +6 more
TL;DR: Evidence is provided for a putative relationship between the concentration of osteocalcin and the microstructural mechanical properties of bone and several parameters of bone crystals, as determined by SAXS.