The protein digest was fractionated by ZipTip (Millipore), and each fraction was mixed with the matrix solution (saturated solution of α-cyano-4-hydroxycinnamic acid supplied by Bruker Daltonics, sample:matrix ratio of 1 1 v/v) and measured using Autoflex II (Bruker Daltonics) mass spectrometer equipped with a nitrogen laser (337 nm) in reflector positive mode (m/ z range from 500 to 4500).
The mineral crystallinity and the mineral-to-matrix ratios of the interfacial tissue and the native bone were found to be similar.
The cell-to-matrix ratio of 1 5 (volume of wet cells:volume of sodium alginate) was applied followed the optimum entrapped yeast cell preparation described earlier (Siripattanakul et al. 2010b).
Carbonate substitution was significantly increased while there was a marked reduction in the level of collagen mineralization, mineral crystallinity, and carbonate:matrix ratio in the cortex of the intact tumor-bearing tibiae compared to contralateral controls.
Spectroscopic analysis of L5 vertebrae revealed no significant differences between control and treated animals in mineral to matrix ratio as a function of either animal age or treatment (based on two-way ANOVA analysis; data not shown) in any of the surfaces analyzed.
The ratios of OF obtained with the random and rationally-derived original matrices were expected to be inversely proportional to the ratios of matrix specificities [36].
An average form is estimated using the linear distance data and differences in 3D size and shape are statistically compared as a matrix of ratios of all like linear distances in the two samples.
This study has demonstrated that benign, in-situ and invasive pathologies can be well discriminated using FTIR spectral measurements to calculate both carbonate content and matrix : mineral ratios of calcifications.
The spectra were analyzed to provide information on the relative mineral to matrix ratio; that is, the ratio of integrated areas of the phosphate v1, v3 mode (900 1200 cm-1) to the amide I band (1580 1650 cm-1) and the carbonate (840 890 cm-1) to phosphate (900 1200 cm-1) ratio [ 15].
We characterized differences in mineral and protein content between the rat femurs by metrics related to bone biochemistry, including the mineral to matrix ratio [MTMR; peak area ratio of phosphate to methylene (PO43 /CH2)].
These occurrences may be associated with a relation between extensional strength of the sandstone blocks and viscosity of the shale matrix, the ratio of competent material to incompetent material, and the effect of fluid on the deformations in the ductile mélange stage.
