Sökning: "slow release"

Visar resultat 1 - 5 av 107 avhandlingar innehållade orden slow release.

1. 1. Drug Eluting Hydrogels : Design, Synthesis and Evaluation

   Författare :Lage Ahrenstedt; Deon Bezuidenhout; Michael Malkoch; University of Cape Town; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Drug delivery; PEGylation; Rapamycin; Dexamethasone; Controlled release; Hydrogels; Slow release;

   Sammanfattning : Hydrogels have successfully proved themselves useful for drug delivery applications and several delivery routes have been developed over the years. The particular interest in this work was to design, synthesise and evaluate in situ forming drug eluting hydrogels, which have the potential to ameliorate the healing of cardiovascular diseases. LÄS MER

3. 2. Sustained and triggered release by microencapsulation

   Författare :Viktor Eriksson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; cellulose; controlled release; microencapsulation; solution blown;

   Sammanfattning : Uncontrolled growth of microorganisms is problematic in areas ranging from wound care to aquaculture and ship hulls. In chronic and hard-to-heal wounds, a bacterial biofilm can impair wound healing. LÄS MER

4. 3. Experimental Design and Evaluation of Biocide Release from Microcapsules

   Författare :Jonatan Bergek; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; microsphere; microscopic and macroscopic porosity; controlled release; internal phase separation method; Microcapsule; biocide; polyelectrolyte multilayer;

   Sammanfattning : To protect a painted house façade from mold or algae, anti-growth agents are usually mixed in the paint. The protection of paint systems used in the past relied on heavy metals for protection and are banned today due to their negative impact on the environment. LÄS MER

5. 4. Slow and stopped light by light-matter coherence control

   Författare :Jonas Tidström; Lars Thylén; Mauritz Andersson; Jesper Mørk; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slow light; stored light; stopped light; light-matter coherence; electromagnetically induced transparency; rubidium atoms; Physics; Fysik; Photonics; Fotonik;

   Sammanfattning : In this thesis we study light-matter coherence phenomena related to the interaction of a coherent laser field and the so-called Λ-system, a three-level quantum system (e.g., an atom). We observe electromagnetically induced transparency (EIT), slow and stored light in hot rubidium vapor. LÄS MER

7. 5. Adsorption, aggregation and phase separation in colloidal systems

   Författare :Jing Dai; Istvan Furo; Peter Griffiths; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NMR; chemical shift; spin relaxation; self-diffusion; micelle; core freezing; segregation; solubilization; release; adsorption; binding; surfactant; carbon nanotube; block copolymer; dispersion; competitive adsorption; nanocomposite; Kemi; Chemistry;

   Sammanfattning : The thesis presents work regarding amphiphilic molecules associated in aqueous solution or at the liquid/solid interface. Two main topics are included: the temperature-dependent behavior of micelles and the adsorption of dispersants on carbon nanotube (CNT) surfaces. LÄS MER