KOSTAS VERDELIS: Study Of Mineral And Matrix Maturation In Dentin (Under the direction of Adele L. Boskey and J. Timothy Wright) Spectroscopic analysis was used to study the patterns of changes in the mineral and matrix properties of dentin during maturation of the tissue. Fourier Transform Infrared Imaging (FTIRI) analyses on undecalcified semi-thin sections from fetal bovine incisors and deve...

Atomic force microscopy (AFM) in aqueous solution was used to investigate native nacre of the marine snail Haliotis laevigata on the microscopic scale and the interaction of purified nacre proteins with calcium carbonate crystals on the nanoscopic scale. These investigations were controlled by scanning electron microscopy (SEM), light microscopy (LM) and biochemical methods. For investigations ...

Introduction: Secondary minerals within Martian meteorites have been the subject of intense scrutiny in order to expand our knowledge of surface and near surface processes on Mars. The coarse grained orthopyroxene cumulate meteorite ALH84001 is of particular importance for these studies, due to its ancient age (around 4.5Ga) and the complex mineralogical and chemical zoning of its approximately...

Biomimetic materials which display the complexity of biominerals like nacre are synthetically difficult to prepare. The formation of chitin/calcium carbonate composites, where CaCO(3) is present as aragonite, was achieved via reacetylation of preformed chitosan scaffolds followed by the combination of presoaking of chitin templates with mineral solutions in the presence of poly(acrylic acid). T...

Datasets from a slow carbonate vapor diffusion and mineral precipitation protocol for Dictyostelium ECM and cellulose stalks show examples for composite materials obtained by an in vitro approach, which differs substantially from the in vivo approach reported in The Journal of Structural Biology, doi: 10.1016/j.jsb.2016.03.015 [1]. Methods for obtaining the datasets include bright field transmi...

The experiments of Forbes and his associates (5) ^ at the Ohio Agricultural Experiment Station defined in a very complete fashion the relative efficiency of several mineral compounds as calcium supplements in swine nutrition. The minerals tested included limestone floats, precipitated bone flour, special steamed bone flour, rock phosphate floats, and precipitated calcium carbonate. As compared ...

The effects of PA21, a novel iron-based and non-calcium-based phosphate binder, on hyperphosphatemia and its accompanying bone abnormality in chronic kidney disease-mineral and bone disorder (CKD-MBD) were evaluated. Rats with adenine-induced chronic renal failure (CRF) were prepared by feeding them an adenine-containing diet for four weeks. They were also freely fed a diet that contained PA21 ...

The gravity receptors of all vertebrates utilize a “test mass” consisting of a complex arrangement of mineral and organic substance that lies over the sensory receptor areas ( m a c u l a ~ ) . ~ ~ Carlstrom has shown that in most vertebrates, the mineral is a polymorph of calcium carbonate (vaterite, aragonite, calcite] in the form of minute, single crystals called otoconia (“ear dust”)? The o...

While apatite carbonate C analysis is a useful tool in palaeodietary research, the vulnerability of carbonates to diagenesis necessitates careful sample preparation. The most common preparation method involves dilute acetic acid treatments to remove highly soluble mineral contaminants. However, there is variation in both treatment time and acid concentration. This study addresses the impact of ...