Results 51 to 60 of about 63,856 (312)

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

open access: yesAdvanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden   +11 more
wiley   +1 more source

Multi-scale interactions of geological processes during mineralization: cascade dynamics model and multifractal simulation [PDF]

open access: yes, 2011
Relations between mineralization and certain geological processes are established mostly by geologist's knowledge of field observations. However, these relations are descriptive and a quantitative model of how certain geological processes strengthen or ...
L. Yao, Q. Cheng
core   +1 more source

Polycaprolactone-based, porous CaCO3 and Ag nanoparticle modified scaffolds as a SERS platform with molecule-specific adsorption [PDF]

open access: yes, 2020
Surface-enhanced Raman scattering (SERS) is a high-performance technique allowing detection of extremely low concentrations of analytes. For such applications, fibrous polymeric matrices decorated with plasmonic metal nanostructures can be used as ...
Gorin, Dmitry   +5 more
core   +2 more sources

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

open access: yesAdvanced 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   +20 more
wiley   +1 more source

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

open access: yesAdvanced 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   +14 more
wiley   +1 more source

Molybdenum mineralization of Serhiivka Au-Mo deposit (Middle Dnipro, Ukrainian Shield)

open access: yesМінеральні ресурси України, 2020
The article is devoted to molybdenum mineralization of the Eastern flank of Au-Mo Serhiivka deposit, located in the Middle Dnipro megablock of the Ukrainian Shield (USh).
V. V. Sukach   +3 more
doaj   +1 more source

A new indicator mineral methodology based on a generic Bi-Pb-Te-S mineral inclusion signature in detrital gold from porphyry and low/intermediate sulfidation epithermal environments in Yukon Territory, Canada

open access: yes, 2018
Porphyry-epithermal and orogenic gold are two of the most important styles of gold-bearing mineralization within orogenic belts. Populations of detrital gold resulting from bulk erosion of such regions may exhibit a compositional continuum wherein Ag, Cu,
Allan, MM   +4 more
core   +1 more source

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

Late-orogenic gold deposits of Egypt

open access: yesГорные науки и технологии, 2018
Egypt belongs to states developing its mineral resource base. Gold-bearing territory of Egypt is located within the Nubian-Arabian shield in the Neoproterozoic collision zone of transverse thrusts.
Hani Sharafeldin Elsayed
doaj   +1 more source

Geological Structures and Age of the Magmatic Rocks Related to Primary Gold in Vietnam

open access: yesIraqi Geological Journal, 2023
The research on gold in Vietnam has been interesting to many authors. So far, studies on Geology-Minerals on the territory of Vietnam have determined that there are hundreds of gold mineralization.
Le Tuan, Nguyen Hoang, Vu Cam
doaj   +1 more source

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