Results 101 to 110 of about 866,489 (308)

The eggshell: structure, composition and mineralization

Frontiers in Bioscience, 2012
The calcareous egg is produced by all birds and most reptiles. Current understanding of eggshell formation and mineralization is mainly based on intensive studies of one species - the domesticated chicken Gallus gallus. The majority of constituents of the chicken eggshell have been identified.
Hincke, M. T., Nys, Yves, Y., Gautron, Joël, Mann, K., Rodriguez-Navarro, A.B., Mac Kee, M.   +5 more
openaire   +4 more sources

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

Advanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl, Arsène Chemin, Adam H. Day, Rocio B. Rodriguez, Sneha Choudhury, Franziska Buchner, Kaan Atak, Christoph Merschjann, Emina Hadzifejzovic, Tim D. W. Claridge, Karin Larsson, Amélie Venerosy, Mailis M. Lounasvuori, Natalia Zabarska, Boyan Iliev, Thomas J. S. Schubert, Hugues A. Girard, Jean‐Charles Arnault, John S. Foord, Tristan Petit, Anke Krueger   +20 more
wiley   +1 more source

The implementation of dust mineralogy in COSMO5.05-MUSCAT [PDF]

Geoscientific Model Development
Mineral dust aerosols are composed of a complex assemblage of various minerals depending on the region in which they originated. Given the different mineral composition of desert dust aerosols, different physicochemical properties and therefore varying ...
S. Gómez Maqueo Anaya, D. Althausen, M. Faust, H. Baars, B. Heinold, J. Hofer, I. Tegen, A. Ansmann, R. Engelmann, A. Skupin, B. Heese, K. Schepanski   +11 more
doaj   +1 more source

Research methodology in montanistic tourism [PDF]

, 2017
Research methodology in montanistic tourism involves the archival research and study of special literature, surface and underground field survey, the analysis of findings of rock fragments, mineral composition, traces of metallurgical processes ...
Schejbal, Ctirad
core  

Structural Porosity and Low Mineral Density in Enamel Rods Drive Molar Incisor Hypomineralisation

Advanced Functional Materials, EarlyView.
This study uses advanced imaging modalities on multiple length scales to show that molar‐incisor hypomineralization does not present as a locally homogeneous pathology. Instead, microstructural defects, characterized through non‐mineralized, protein‐rich sheaths and an altered mineral structure in between prism rods, resulting in local differences in ...
Katharina Jähn‐Rickert, Johannes Krug, Gudrun Lotze, Imke A.K. Fiedler, Diana Freund, Ezgi Deniz Türkoğlu, Christine Plumeyer, Felix N. von Brackel, Anton Davydok, Manfred Burghammer, Thomas Beikler, Thomas F. Keller, Katrin Bekes, Elizabeth A. Zimmermann, Björn Busse   +14 more
wiley   +1 more source

Mineral composition of rhizomes Potentilla erecta L.

Фармацевтичний журнал, 2018
Chemical substances, which accumulate selectively by plants, can influence at their pharmacological action: to increase or decrease their absorption, resorptive properties; be synergists or antagonists, as well as to reduce or enhance the toxic effect ...
V. M. Minarchenko, V. G. Kaplunenko, L. А. Glushchenko, N. P. Коvalska, L. М. Babenko   +4 more
doaj   +1 more source

Elemental surface analysis at ambient pressure by electron-induced x-ray fluorescence [PDF]

, 2003
The development of a portable surface elemental analysis tool, based on the excitation of characteristic x rays from samples at ambient pressure with a focused electron beam is described.
Barsic, David N., Feldman, Jason E., George, Thomas, Scherer, Axel, Wilcox, Jaroslava Z.   +4 more
core   +1 more source

Injectable Dual‐Network Hydrogel System for Osteochondral Repair Combining Immunomodulation, Mechanical Adaptability, and Enhanced Tissue Integration

Advanced Functional Materials, EarlyView.
A UV‐triggered injectable dual‐network hydrogel is reported as the first application of bletilla striata polysaccharide (BSP) in osteochondral repair. By integrating methacrylamide‐modified BSP and nitrobenzaldehyde‐functionalized hyaluronic acid, the system achieves immunomodulation, mechanical reinforcement, and dynamic tissue adhesion, thereby ...
Jiaming Cui, Feifei Zhou, Yuan Luo, Tao Ouyang, Huiwu Zhang, Songmiao Cheng, Qiang Li, Xu Jiang, Yingying Yu, Yicheng Wang, Hong Ming   +10 more
wiley   +1 more source

The Stoichiometry of Mineral Compositions

, 2011
Previous work by John Aitchison (1999) showed how log-ratio compositional data analysis can illuminate the relationships between components of a composition based on mineral constituents, However, his analysis was framed in terms of weight based compositional, so it did not illustrate directly the stoichometric relationships of the ...
Grunsky, Eric C., Bacon Shone, John
openaire   +3 more sources

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source