Search for dissertations about: "biocompatibility evaluation"

Showing result 11 - 15 of 19 swedish dissertations containing the words biocompatibility evaluation.

2. 11. On the tissue response to hafnium, titanium and thin calcium phosphate coatings

   Author : Sham Mohammadi; Göteborgs universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hafnium; titanium; calcium phosphates; hydroxyapatite; implants; bone; soft tissue; histomorphometry;

   Abstract : Background: Titanium (Ti) is the gold standard material for load-bearing implants. Although high success rates have been reported for Ti implants, failures do occur. Alternative materials/surface modifications might further improve the performances of Ti implants, particularly in situations with non-optimal local tissue conditions. READ MORE

4. 12. New insights into principles of scaffolds design for bone application

   Author : Hongji Yan; Tim Bowden; Hong Qian; Martijn van Griensven; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chondroitin sulfate; hyaluronic acid; pH; cross-linking chemistry; bone morphogenetic protein; lithium; mesenchymal stem cell; in vivo.; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Abstract : This thesis presents deeper insights into bone applicable biomaterials’ design. Poor affinity of BMP-2 towards scaffolds required supra-physiological dose administration. Though molecules containing sulfate could sustain BMP-2 release, side effects occurred due to BMP-2 supra-dose, or these sulfate-containing biomolecules. READ MORE

5. 13. Investigation of nanoparticle-cell interactions for development of next generation of biocompatible MRI contrast agents

   Author : Natalia Abrikossova; Kajsa Uvdal; Caroline Brommesson; Eva Särndahl; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Progress in synthesis technologies and advances in fundamental understanding of materials with low dimensionality has led to the birth of a new scientific field, nanoscience, and to strong expectations of multiple applications of nanomaterials. The physical properties of small particles are unique, bridging the gap between atoms and molecules, on one side, and bulk materials on the other side. READ MORE

6. 14. Antibacterial Strategies for Titanium Biomaterials

   Author : Erik Unosson; Ken Welch; Håkan Engqvist; Timo Närhi; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Titanium; silver; biomaterial; antibacterial; photocatalysis; hydrogen peroxide; reactive oxygen species; combinatorial materials science; Engineering Science with specialization in Materials Science; Teknisk fysik med inriktning mot materialvetenskap;

   Abstract : Titanium and titanium based alloys are widely used in dentistry and orthopedics to replace hard tissue and to mend broken bones. It has become a material of choice due to its low density, high strength, good biocompatibility and its capacity to integrate closely with the bone. READ MORE

7. 15. Conjugated Polymers for Neural Interfaces : Prospects, possibilities and future challenges

   Author : Maria Asplund; Hans von Holst; Olle Inganäs; Thomas Stieglitz; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; neuroprosthetics; conjugated polymers; conducting polymers; PEDOT; functional electrical stimulation; neural electrodes; Medical engineering; Medicinsk teknik; Neuroscience; Neurovetenskap; Functional materials; Funktionella material;

   Abstract : Within the field of neuroprosthetics the possibility to use implanted electrodes for communication with the nervous system is explored. Much effort is put into the material aspects of the electrode implant to increase charge injection capacity, suppress foreign body response and build micro sized electrode arrays allowing close contact with neurons. READ MORE