Sökning: "Ken Welch"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Ken Welch.

1. 1. Electrodynamic and Mechanical Spectroscopy Method Development and Analysis Relating to Materials with Biotechnological Applications

   Författare :Ken Welch; Maria Strømme; Ragnar Ek; Bengt-Erik Mellander; Uppsala universitet; []
   Nyckelord :Engineering physics; Teknisk fysik;

   Sammanfattning : Materials with biotechnological applications and materials that interact with the biological environment play an ever increasing role in our lives and society. In order to be able to tailor specific properties of these materials to suit their intended applications, it is important to gain a deeper understanding of the relationship between the material structure and its function. LÄS MER

3. 2. Titanium Dioxide Photocatalysis in Biomaterials Applications

   Författare :Yanling Cai; Ken Welch; Maria Strømme; Håkan Engqvist; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; titanium dioxide; photocatalysis; bioactivity; antibacterial effect; metabolic activity assay; biofilm; reactive oxygen species; disinfection kinetics; post-UV;

   Sammanfattning : Despite extensive preventative efforts, the problem of controlling infections associated with biomedical materials persists. Bacteria tend to colonize on biocompatible materials and form biofilms; thus, novel biomaterials with antibacterial properties are of great interest. LÄS MER

4. 3. Bioactive Coatings and Antibacterial Approaches for Titanium Medical Implants

   Författare :Oscar Janson; Ken Welch; Pentti Tengvall; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioactivity; antibacterial; titanium; hydrogen peroxide; hydroxyapatite; biomaterial; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

   Sammanfattning : The aim of this thesis was to characterize and manufacture coatings and surfaces with antibacterial properties and retained or enhanced bioactivity and biocompatibility. The aim was also to study the optimal composition and parameters of mixtures for debridement of bacterial biofilms on titanium surfaces. LÄS MER

5. 4. Additive Manufacturing and Mesoporous Materials for Pharmaceutical Applications

   Författare :Christos S. Katsiotis; Ken Welch; Jonas Lindh; Maria Stromme; Ryan Donnelly; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive Manufacturing; Fused Deposition Modelling; Semi Solid extrusion; Mesoporous materials; Poorly water soluble drugs; Drug delivery; Teknisk fysik med inriktning mot nanoteknologi och funktionella material; Engineering Science with specialization in Nanotechnology and Functional Materials;

   Sammanfattning : Additive Manufacturing (AM), over the past decade, has evolved into a versatile technology with significant applications in pharmaceutical research. This technology enables the production of drug formulations tailored to individual patients, offering customization in both dosage and dissolution profiles. LÄS MER

7. 5. Porous Amorphous Calcium Carbonate and Phosphate : Synthesis and Application

   Författare :Rui Sun; Ocean Cheung; Maria Strømme; Ken Welch; Denis Gebauer; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; amorphous calcium carbonate; amorphous calcium phosphate; stabilization; crystallization; porous material; drug delivery; gas adsorption; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : The synthesis of porous amorphous calcium carbonate (ACC) and porous amorphous calcium phosphate (ACP) was developed in this thesis. Porous ACC with specific Brunauer–Emmett–Teller (BET) surface area of >350 m2/g was synthesized using a surfactant free approach. The high surface area of porous ACC was related to its nanostructure. LÄS MER