Results 131 to 140 of about 1,261,489 (324)

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

open access: yesAdvanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani   +13 more
wiley   +1 more source

A Computer-Controlled SEM-EDX Routine for Characterizing Respirable Coal Mine Dust

open access: yes, 2017
A recent resurgence in coal workers’ pneumoconiosis (or “black lung”) and concerns over other related respiratory illnesses have highlighted the need to elucidate characteristics of airborne particulates in occupational environments.
Victoria Johann-Essex   +2 more
semanticscholar   +1 more source

Micro-Raman, FTIR, SEM-EDX and structural analysis of the Çanakkale meteorite

open access: yesSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2012
This study demonstrates for the first time, the spectroscopic characterization of Çanakkale Meteorite that fell at Çanakkale, Republic of Turkey (40°8'44″N; 26°24'23″E). The olivine group [(Mg, Fe)(2)SiO(4)], enstatite [Mg(2)Si(2)O(6)] (one of the orthopyroxene minerals) and plagioclase were identified by the micro-Raman and FTIR spectroscopies and EDX-
Ünsalan, Ozan   +6 more
openaire   +3 more sources

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

SEM-EDX hyperspectral data analysis for the study of soil aggregates

open access: yesGeoderma, 2022
I. Allegretta   +7 more
semanticscholar   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 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

Multicomponent metal-organic framework membranes for advanced functional composites. [PDF]

open access: yes, 2018
The diverse chemical and structural properties of metal-organic frameworks (MOFs) make them attractive for myriad applications, but their native powder form is limiting for industrial implementation. Composite materials of MOFs hold promise as a means of
Bentz, Kyle C   +3 more
core  

Room temperature soft ferromagnetism in the nanocrystalline form of YCo2 - a well-known bulk Pauli paramagnet

open access: yes, 2008
The Laves phase compound, YCo2, is a well-known exchange-enahnced Pauli paramagnet. We report here that, in the nanocrystalline form, this compound interestingly is an itinerant ferromagnet at room temperature with a low coercive-field.
E. V. Sampathkumaran   +5 more
core   +1 more source

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