Sökning: "controllable chemistry"

Visar resultat 6 - 10 av 28 avhandlingar innehållade orden controllable chemistry.

  1. 6. Exploiting chemical control in biomaterials

    Författare :Tove Kivijärvi; Anna Finne Wistrand; Barner-Kowollik Christopher; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biomaterial; controllable chemistry; polyester; ring-opening polymerization; hyaluronan; degradation; photoactivation; protein release; cell differentiation; biomaterial; kontrollerbar kemi; polyester; ring-öppnings polymerisering; hyaluronsyra; nedbrytning; fotoaktivering; frigöring av protein; celldifferentiering; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Chemistry and biology at the interphase will most likely give many of the answers to tomorrows medical challenges. Creating solutions to the problems at this interphase is benefiting from a collaborative research approach, driven by the need for development of chemistries or devices solving medical problems. LÄS MER

  3. 7. Chemical Pathways to Electrically Conductive Hemicellulose Hydrogels

    Författare :Weifeng Zhao; Ann-Chiristine Albertsson; Ulrica Edlund; Karin Odelius; Elisabet Brännvall; Peter Plikk; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrically conductive; hemicellulose; hydrogels; swelling behavior; aniline oligomers; renewable; polymer synthesis; Elektriskt ledande; hemicellulosa; hydrogel; svällning; anilinoligomerer; förnyelsebar; polymersyntes; Kemi; Chemistry;

    Sammanfattning : Hydrogels have been extensively explored and are widely used in diverse biomedical applications, such as scaffolds for tissue engineering and vehicles for drug delivery. As one type of important natural polymer-based hydrogel, hemicellulose hydrogels have interesting attributes, including being renewable, non-toxic, biocompatible, biodegradable, and abundantly available. LÄS MER

  4. 8. Functionalization and characterization of aqueous silica sols and their application in Pickering emulsions

    Författare :Sanna Björkegren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Pickering emulsions; functionalized colloidal silica; surface activity; NMR spectroscopy;

    Sammanfattning : The main objective of this thesis is to create an understanding of how surface functionalized colloidal silica can be utilized in emulsions stabilized solely by particles, so called Pickering emulsions. To achieve this, water-based silica sols have been functionalized with hydrophilic and hydrophobic groups. LÄS MER

  5. 9. Development and Investigations of Novel Sample Preparation Techniques : Electrochemical Extraction and Evaluation of Miniaturized Analytical Devices Coupled to Mass Spectrometry

    Författare :Gustav Liljegren; Leif Nyholm; Jean Pettersson; Per Sjöberg; Ari Ivaska; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Analytical chemistry; Electrochemical extraction; Solid-phase microextraction; Solid-phase extraction; Microchip; Mass spectrometry; Polypyrrole; Pressurized-fluid extraction; Preconcentration; Electrospray ionization; Analytisk kemi; Analytical chemistry; Analytisk kemi;

    Sammanfattning : Different sample preparation steps prior to a detection method are often essential in analytical chemistry. In this thesis, both static extractions and on-line coupled solid-phase extractions have been studied in combination with different detection techniques. LÄS MER

  7. 10. Stimuli-Responsive Materials Derived from Cellulose Nanofibrils : Synthesis, characterization, and performance evaluation

    Författare :Frédéric Héraly; Jiayin Yuan; Lennart Bergström; Leonid Ionov; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; bio-based materials; cellulose nanofibrils; CO2 sorption; soft actuators; stimuli-responsive materials; materialkemi; Materials Chemistry;

    Sammanfattning : This thesis presents a comprehensive study on stimuli-responsive materials derived from cellulose nanofibrils (CNFs), focusing on their synthesis, characterization, and performance evaluation in various applications. Renowned for their biodegradability, renewability, and robust mechanical properties, CNFs are explored in three primary contexts: moisture-responsive actuators, voltage-responsive actuators, and CO2-responsive sensors. LÄS MER