A5101878600- Methane Hydrates and Related Phenomena
- X-ray Diffraction in Crystallography
- Paleontology and Stratigraphy of Fossils
- Crystallization and Solubility Studies
- Geology and Paleoclimatology Research
- Calcium Carbonate Crystallization and Inhibition
- Isotope Analysis in Ecology
- Geological Formations and Processes Exploration
- Bone Tissue Engineering Materials
- Planetary Science and Exploration
- biodegradable polymer synthesis and properties
- Bone and Dental Protein Studies
- Dental Radiography and Imaging
- Oral microbiology and periodontitis research
- Marine Biology and Ecology Research
- Building materials and conservation
- Metal Extraction and Bioleaching
- Additive Manufacturing and 3D Printing Technologies
Asahi Kasei (Japan)
2020
Tokyo Institute of Technology
2020
Japan Agency for Marine-Earth Science and Technology
2016-2018
Brucite-carbonate chimneys were discovered from the deepest known (∼5700 m depth) serpentinite-hosted ecosystem—the Shinkai Seep Field (SSF) in southern Mariana forearc. Textural observations and geochemical analysis reveal three types (I–III) of formed by precipitation dissolution constitutive minerals. Type I are bright white to light yellow, have a spiky crystalline wrinkled surface with microbial mat contain more brucite; these as result rapid under high fluid discharge conditions. II...
Although environmental changes and evolution of life are potentially recorded via microbial carbonates, including laminated stromatolites clotted thrombolites, factors controlling their fabric still a matter controversy. Herein, we report that the exopolymer properties different cyanobacterial taxa primarily control carbonates fabrics in modern examples. This study shows calcite encrustation filamentous Phormidium sp. secreting acidic exopolymers forms stromatolites, whereas coccoid...
The Shinkai Seep Field (SSF) in the southern Mariana forearc discovered 2010 is deepest (~5,700 m depth) known serpentinite-hosted ecosystem dominated by a vesicomyid clam, Calyptogena (Abyssogena) mariana. pioneering study presumed that animal communities are primary sustained reducing fluid originated from serpentinization of mantle peridotite. For understanding nutrient and energy sources for SSF community, this conducted four expeditions to collected additional samples such as...
Abstract Simultaneous one‐pot syntheses of PA66 and HAp were carried out by extracting H 2 O CO from monomers raw materials, respectively, resulting in the formation a polyamide (PA) 66‐hydroxyapatite (HAp) nanocomposite. During process, spherical nano‐sized particle was precipitated following dissolution micro‐sized CaHPO 4 ・2H O. The subsequently adsorbed onto generated product. Some formed bound polymer on HAp, an increase adhesiveness PA66‐HAp interface observed as polymerization...