| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Wolf, Stephan E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2023In situ mapping of biomineral skeletal proteins by molecular recognition imaging with antibody-functionalized AFM tipscitations
- 2023Evidence for liquid-liquid phase separation during the early stages of Mg-struvite formationcitations
- 2023The Impact of the Cellular Environment and Aging on Modeling Alzheimer's Disease in 3D Cell Culture Modelscitations
- 2022Influence of Taylor Vortex Flow on the Crystallization of l-Glutamic Acid as an Organic Model Compoundcitations
- 2022Correction: Progressive changes in crystallographic textures of biominerals generate functionally graded ceramics
- 2022Progressive changes in crystallographic textures of biominerals generate functionally graded ceramicscitations
- 2020The multiple stages towards crystal formation of L-glutamic acidcitations
- 2020From solutes to solids: towards a supramolecular view on mineralization processes
- 2019Bioinspired Materials: From Living Systems to New Concepts in Materials Chemistrycitations
- 2019Polymer-Functionalised Nanograins of Mg-Doped Amorphous Calcium Carbonate via a Flow-Chemistry Approachcitations
- 2019Phase-specific bioactivity and altered Ostwald ripening pathways of calcium carbonate polymorphs in simulated body fluidcitations
- 2019Nanoscale deformation mechanics reveal resilience in nacre of Pinna nobilis shellcitations
- 2019Mechanical improvement of calcium carbonate cements by in situ HEMA polymerization during hardeningcitations
- 2019Ultra-smooth and space-filling mineral films generated via particle accretion processescitations
- 2019Conical Nanoindentation Allows Azimuthally Independent Hardness Determination in Geological and Biogenic Mineralscitations
- 2019Designing Solid Materials from Their Solute State: A Shift in Paradigms toward a Holistic Approach in Functional Materials Chemistrycitations
- 2018Nanostructure, osteopontin, and mechanical properties of calcitic avian eggshellcitations
- 2017Desiccator Volume: A Vital Yet Ignored Parameter in CaCO<sub>3</sub> Crystallization by the Ammonium Carbonate Diffusion Methodcitations
- 2017Universal structure motifs in biominerals: a lesson from nature for the efficient design of bioinspired functional materialscitations
- 2016Nonclassical Crystallization in vivo et in vitro (I): Process-Structure-Property relationships of nanogranular biomineralscitations
- 2015Nanoscale assembly processes revealed in the nacroprismatic transition zone of Pinna nobilis mollusc shells.citations
- 2015Nanoscale assembly processes revealed in the nacroprismatic transition zone of Pinna nobilis mollusc shellscitations
- 2015Pseudomorphic transformation of amorphous calcium carbonate films follows spherulitic growth mechanisms and can give rise to crystal lattice tiltingcitations
- 2015Single nanogranules preserve intracrystalline amorphicity in biomineralscitations
- 2014Synthesis of Calcium Carbonate Biological Materials: How Many Proteins are Needed?citations
- 2013Synthesis of calcium carbonate biological materials: how many proteins are needed?citations
- 2012Merging models of biomineralisation with concepts of nonclassical crystallisation: is a liquid amorphous precursor involved in the formation of the prismatic layer of the Mediterranean Fan Mussel Pinna nobilis?citations
- 2011Strong Stabilization of Amorphous Calcium Carbonate Emulsion by Ovalbumin: Gaining Insight into the Mechanism of 'Polymer-Induced Liquid Precursor' Processescitations
- 2011Strong stabilization of amorphous calcium carbonate emulsion by ovalbumin: gaining insight into the mechanism of 'polymer-induced liquid precursor' processes.citations
- 2011Carbonate-coordinated metal complexes precede the formation of liquid amorphous mineral emulsions of divalent metal carbonatescitations
- 2010Formation of silicones mediated by the sponge enzyme silicatein-alphacitations
- 2009Evidence for biogenic processes during formation of ferromanganese crusts from the Pacific Oceancitations
- 2008Early homogenous amorphous precursor stages of calcium carbonate and subsequent crystal growth in levitated dropletscitations
- 2008Bioencapsulation of living bacteria (Escherichia coli) with poly(silicate) After transformation with silicatein-alpha genecitations
- 2008Reply to "Mirror Symmetry Breaking" of the centrosymmetric CaCO3 crystals with amino acidscitations
- 2008Nucleation and growth of CaCO(3) mediated by the egg-white protein ovalbumin: A time-resolved in situ study using small-angle neutron scatteringcitations
- 2008Poly(silicate)-metabolizing silicatein in siliceous spicules and silicasomes of demosponges comprises dual enzymatic activities (silica polymerase and silica esterase)citations
- 2007Phase selection of calcium carbonate through the chirality of adsorbed amino acidscitations
- 2007Analysis of the axial filament in spicules of the demosponge Geodia cydonium: Different silicatein composition in microscleres (asters) and megascleres (oxeas and triaenes)citations
- 2007Formation of giant spicules in the deep-sea hexactinellid Monorhaphis chuni (Schulze 1904): electron-microscopic and biochemical studiescitations
- 2007Phasenselektion von Calciumcarbonat durch die Chiralität adsorbierter Aminosäurencitations
Places of action
| Organizations | Location | People |
|---|
article
Evidence for biogenic processes during formation of ferromanganese crusts from the Pacific Ocean
Abstract
<p>Ferromanganese [Fe/Mn] crusts formed on basaltic seamounts, gain considerable economic importance due to their high content of Co, Ni, Cu, Zn and Pt. The deposits are predominantly found in the Pacific Ocean in depths of over 1000 m. They are formed in the mixing layer between the upper oxygen-minimum zone and the lower oxygen-rich bottom zone. At present an almost exclusive abiogenic origin of crust formation is considered. We present evidence that the upper layers of the crusts from the Magellan Seamount cluster are very rich in coccoliths/coccolithophores (calcareous phytoplankton) belonging to different taxa. Rarely intact skeletons of these unicellular algae are found, while most of them are disintegrated into their composing prisms or crystals. Studies on the chemical composition of crust samples by high resolution SEM combined with an electron probe microanalyzer (EPMA) revealed that they are built of distinct stacked piles of individual compartments. in the center of such piles Mn is the dominant element, while the rims of the piles are rich in Fe (MINERALIZATION aspect). The compartments contain coccospheres usually at the basal part. Energy dispersive X-ray spectroscopy (EDX) analyses showed that those coccospheres contain, as expected, CaCO(3) but also Mn-oxide. Detailed analysis displayed on the surface of the coccolithophores a high level of CaCO(3) while the concentration of Mn-oxide is relatively small. With increasing distance from the coccolithophores the concentration of Mn-oxide increases on the expense of residual CaCO(3). We conclude that coccoliths/coccolithophores are crucial for the seed/nucleation phase of crust formation (BIOMINERALIZATION aspect). Subsequently, after the biologically induced mineralization phase Mn-oxide deposition proceeds "auto"catalytically. (C) 2009 Elsevier Ltd. All rights reserved.</p>