0000000000773441

AUTHOR

Janis Locs

0000-0003-3162-7431

showing 2 related works from this author

Investigation of TiO<sub>2</sub> Ceramic Surface Conductivity Using Conductive Atomic Force Microscopy

2012

Dense TiO2 (rutile) ceramic samples were prepared by sintering compacts of titanium dioxide anatase powder at 1500 °C for 5h. Sintered samples were polished and annealed in vacuum at 1000 °C for 1h. Structural properties of the samples were studied by X-ray diffraction, polarized light and scanning electron microscopy. The surface topography and local electrical conductivity of the samples were investigated by atomic force microscopy technique under atmospheric conditions. Enhanced electrical conductivity was observed at grain boundaries while the polished, vacuum annealed grains surface showed non-homogeneous conductivity.

AnataseMaterials scienceScanning electron microscopeMechanical EngineeringAnalytical chemistryConductive atomic force microscopyConductivitySurface conductivityMechanics of Materialsvisual_artvisual_art.visual_art_mediumGeneral Materials ScienceGrain boundaryCeramicPhotoconductive atomic force microscopyKey Engineering Materials
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Response of Osteoporotic Jaw Bone to Implantation of Biphasic Calcium Phosphate Bioceramics Supplemented with Autologous Mesenchymal Cells

2016

To target areas of the skeletal system which are clinically significant sites is a new strategy as the"local treatment of osteoporosis". Synthetic bioceramics implanted into critical sized bone defect of rats with experimental osteoporosis demonstrateds better effect to bone tissue repair in osteoporosis and/or osteoporosis status. Stem cell transplantation may improve bone mineral density in animal models of osteoporosis. An adequate blood supply of mesenchymal cells (MSCs and osteoprogenitors) is important for efficient bone regeneration. The concentration and quality of MSCs may vary significantly, depending on the individual (especially in older people), the cell obtaining sites and tec…

Bone mineralmedicine.medical_specialtyMaterials scienceMechanical EngineeringOsteoporosisCellMesenchymal stem cell030209 endocrinology & metabolism030206 dentistrymedicine.diseaseBone tissueTransplantation03 medical and health sciences0302 clinical medicineEndocrinologymedicine.anatomical_structureMechanics of MaterialsInternal medicinemedicineGeneral Materials ScienceStem cellBone regenerationKey Engineering Materials
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