Search for dissertations about: "electroactivity"

Showing result 1 - 5 of 6 swedish dissertations containing the word electroactivity.

  2. 1. Electroactivity of conjugated polymers : A study of electrochemical doping and its applications

    Author : Tomas Johansson; Carita Kvarnström; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Electrochemical doping of conjugated polymers is a complex process, which forms the basis for both characterisation and applications of this class of materials. The high electron affinityof poly(quinoxaline vinylene)s and poly(pyridopyrazine)s, two types of polymers with potential use as electron acceptors in organic photodiodes, has been demonstrated with cyclic voltamrnetry. READ MORE

  4. 2. From Macromolecular Design to Supramolecular Self-assembly

    Author : Lidija Glavas; Ann-Christine Albertsson; Karin Odelius; Matthew Becker; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Self-assembly; micelles; core crystallinity; cyclic polypeptides; electroactivity; redox-responsiveness; triggered dissociation; loading; release; N-carboxyanhydride polymerization; polyesters; poly ε-decalactone ; Självorganisation; miceller; kärnkristallinitet; cykliska polypeptider; elektroaktivitet; tidsberoende dissociation; inkapsling; frisläppning; N-karboxyanhydrid polymerisation; polyestrar; poly ε-dekalakton ; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Advancements in drug delivery have enabled a wider array of prevention, control and treatment of diseases such as cancer. Drug delivery systems have the possibility of encapsulating drugs with low solubility, delivering them to specific locations in the body as well as obtaining a controlled and sustained drug release. READ MORE

  5. 3. degradable electroactive polymers: Synthesis, Macromolecular architecture and scaffold design

    Author : Baolin Guo; Ann-Christine Albertsson; Patric Jannasch; KTH; []
    Keywords : Poly lactide ; poly ε-caprolactone ; ring-opening polymerization; carboxyl-capped aniline trimer; carboxyl-capped aniline pentamer; phenyl amino-capped aniline tetramer; coupling reaction; DCC DMAP system; degradability; electroactivity; conductivity; macromolecular architecture; chitosan; hydrogel; block copolymer; functionalization; oxidative coupling reaction; self-assembly; toxicity; tubular porous scaffold; neural tissue engineering.;

    Abstract : Electrically conducting polymers induce specific cellular responses at the molecular level. One of the crucial limitations of the use of conducting polymers in tissue engineering is their inability to degrade. READ MORE

  6. 4. Synthesis, characterization and molecular architecture of electroactive and degradable polymers

    Author : Baolin Guo; Ann-Christine Albertsson; Anna Finne Wistrand; Ann Cornell; Mark Rutland; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Poly L; L-lactide ; poly ε-caprolactone ; ring-opening polymerization; carboxyl-capped aniline trimer; carboxyl-capped aniline pentamer; coupling reaction; DCC DMAP system; degradability; electroactivity; conductivity; macromolecular architecture; tissue engineering; Polymer chemistry; Polymerkemi;

    Abstract : The third-generation biomaterials are designed to stimulate specific cellular responses at the molecular level. Recent studies have shown that electrical signals regulate cellular activities including cell adhesion, migration, proliferation and differentiation. READ MORE

  7. 5. 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