Results 71 to 80 of about 376,116 (305)

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

Advanced 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, Nessma Bennaceur, Celina Benkhellat, Tristan Georges, Clara Doisneau, Vaskar Sardhalia, Thierry Azaïs, Flora Lemaire, Halima Kerdjoudj, Mohamed Selmane, Capucine Sassoye, Marie Albéric, Cédric Boissière, Nadine Nassif   +13 more
wiley   +1 more source

Automated characterisation of intergrowth textures in mineral particles. A case study [PDF]

, 2013
The characterisation of mineral texture has been a major concern for process mineralogists, as liberation characteristics of the ores are intimately related to the mineralogical texture.
Castroviejo Bolibar, Ricardo, Pirard, E., Pérez-Barnuevo, Laura   +2 more
core   +2 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

Advanced 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, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Study on Accuracy of Quantitative Analysis of Minerals under Rotating Stage Microscopy

Yankuang ceshi, 2018
Mineral quantitative analysis by optical microscope is simple and reliable, and has been widely used in process mineralogy and rock-mineral determination.
YANG Bing-fei, FENG An-sheng
doaj   +1 more source

Does a Theoretical Estimation of the Dust Size Distribution at Emission Suggest More Bioavailable Iron Deposition? [PDF]

, 2012
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/95443/1/grl28895 ...
Akinori Ito, Baker, Boyd, Cakmur, Feng, Formenti, Ginoux, Huneeus, Ito, Ito, Jasper F. Kok, Jickells, Johnson, Joyce E. Penner, Kok, Kok, Liu, Mahowald, Mahowald, Mahowald, Mahowald, Marticorena, Meskhidze, Nowottnick, Remer, Rotman, Schulz, Sullivan, Tegen, Tegen, Uno, Yan Feng, Yue, Zender   +33 more
core   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Physicochemical Characteristics and Possible Sources of Individual Mineral Particles in a Dust Storm Episode in Beijing, China

Atmosphere, 2018
Beijing frequently experiences dust storms during spring, which result in deteriorated visibility and cause negative health impacts. In this paper, the dust particles were collected during a dust storm episode on 4–5 May 2017 in Beijing, and the ...
Jie Li, Longyi Shao, Lingli Chang, Jiaoping Xing, Wenhua Wang, Wenjun Li, Daizhou Zhang   +6 more
doaj   +1 more source

Assessing microstructures of pyrrhotites in basalts by multifractal analysis [PDF]

Nonlinear Processes in Geophysics, 2010
Understanding and describing spatial arrangements of mineral particles and determining the mineral distribution structure are important to model the rock-forming process.
S. Xie, Q. Cheng, S. Zhang, K. Huang
doaj   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Mineralized Collagen Fibrils: A Mechanical Model with a Staggered Arrangement of Mineral Particles [PDF]

Biophysical Journal, 2000
Both elastic modulus and fracture stress are known to increase with the amount of mineral deposited within collagen fibrils. Current mechanical models of mineralized fibrils, where mineral platelets are arranged in parallel arrays, reproduce the first effect but fail to predict an increase in fracture stress.
Jäger, I., Fratzl, P.
openaire   +3 more sources