The morphology of bone mineral as revealed by small-angle X-ray scattering.
Diffuse small-angle X-ray scattering of oriented bone from bovine femur and canine femur was described in terms of an ideal isotropic two-dimensional two-phase system which consists of mineral phase and organic phase. The microstructure of powdered, randomly-oriented bone from bovine femur was found to be affected by grinding. An analysis of small-angle scattering from oriented bone showed that bone mineral was to a large extent in the form of needle-like particles with a 50-60 A the diameter, and the dimension of organic phase transverse to the longitudinal axis of long bone was in the range 45-55 A. The intersect distribution function was directly calculated from the scattering intensities, and the results strongly suggested the presence of needle-like mineral with sharp edges.
D000818:Animals; D001842:Bone and Bones / Q000648:ultrastructure*; D002417:Cattle; D004285:Dogs; D005269:Femur / Q000648:ultrastructure; D008433:Mathematics; D008903:Minerals / Q000032:analysis; D008954:Models, Biological; D012542:Scattering, Radiation; D014965:X-Rays
D008903:Minerals