Sökning: "Microgels"

Visar resultat 6 - 10 av 18 avhandlingar innehållade ordet Microgels.

  1. 6. Development and characterization of an in vitro method for interaction studies between polymers and pharmaceuticals : Aiding in the development of new drug delivery systems

    Författare :Marcus Wanselius; Per Hansson; Magnus Bergström; Susanna Abrahmsén-Alami; Christian Pedersen; Anna Fureby; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Microgels; Subcutaneous administration; Drug delivery; Microfluidics; In vitro methodology; Method development; Biopharmaceuticals; Amphiphilic drugs; Polyelectrolytes; Hyaluronic acid; Peptides; Farmaceutisk fysikalisk kemi; Pharmaceutical Physical Chemistry;

    Sammanfattning : Polymers are a group of macromolecules used in formulations of pharmaceuticals, one example being the delivery system DC Bead™. Further, some of the most abundant and for drug delivery important constituents of the subcutaneous tissue are charged polymers (polyelectrolytes), e.g. collagen, hyaluronic acid, and chondroitin sulfate. LÄS MER

  3. 7. Structure, Dynamics and Phase Behaviour of Charged Soft Colloidal Dispersions

    Författare :Sofi Nöjd; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microgels; directed self-assembly; interaction potentials; scattering methods; confocal laser scanning microscopy; dielectric spectroscopy;

    Sammanfattning : Soft and deformable ionic microgels such as poly(N-isopropylacrylamide-co-acrylic acid), PNIPAM-co-AA, microgels have shown to be a versatile alternative to the already well-established hard sphere model systems. Their tuneable interaction potential makes them well suited as model systems to study the phase behaviour found for particles interacting via a soft isotropic potential. LÄS MER

  4. 8. Synthesising colloidal molecules with tunable interactions from soft responsive microgel particles

    Författare :Linda Månsson; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microgels; polymers; colloids; colloidal synthesis; self-assembly; material scaince; confocal microscopy; light scattering; microgels; polymers; colloids; colloidal synthesis; self-assembly; material science; confocal microscopy; light scattering;

    Sammanfattning : Colloidal self-assembly is an attractive bottom-up approach to new superstructures and materials with new properties. However, the typical spherical shape and isotropic interaction potential limit the repertoire of ordered structures that can be obtained from synthetic colloids. LÄS MER

  5. 9. Microstructure and liquid mass transport control in nanocomposite materials

    Författare :Christoffer Abrahamsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; magnetic alignment; permeability; colloidal gels; microgels; bond water; clay; flow; microstructure; nanocomposites; poly N-isopropylacrylamide ; porous materials; liquid mass transport; diffusion; diffusion NMR; particle aggregation; phase behavior; silica;

    Sammanfattning : Some of the biggest problems currently facing the world are closely tied to unsolved technological challenges in the material sciences. Many materials have a porous microstructure that controls their overall properties. LÄS MER

  7. 10. Interaction Between Microgels and Oppositely Charged Proteins

    Författare :Christian Johansson; Per Hansson; Brian Saunders; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microgel; protein; uptake; distribution; core-shell; colloidal stability; Physical chemistry; Fysikalisk kemi; Physical Chemistry; fysikalisk kemi;

    Sammanfattning : This thesis reports on interactions between microgels and oppositely charged proteins. Two types of negatively charged microgels are investigated: poly(acrylic acid) microgels of 60-80 µm in diameter, and colloidal poly(NIPAM-co-acrylic acid) microgels of around 1 µm in diameter. LÄS MER