Sökning: "electrostatic self-assembly"

Visar resultat 16 - 20 av 22 avhandlingar innehållade orden electrostatic self-assembly.

  1. 16. Nanoplasmonic Spectroscopy of Single Nanoparticles Tracking Size and Shape Effects in Pd Hydride Formation

    Författare :Svetlana Syrenova; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hole-mask colloidal lithography; enthalpy of formation; palladium nanoparticles and nanocrystals; metal-hydrogen interactions; shrinking-hole colloidal lithography; localized surface plasmon resonance; dark field scattering spectroscopy; single particle spectroscopy; nanoscale effects; plasmonic sensors;

    Sammanfattning : Localized surface plasmon resonance (LSPR) is a phenomenon of collective oscillation of conduction electrons in metal nanoparticles smaller than the wavelength of light that is used for its excitation. Plasmonic metal nanoparticles are able to confine light to extremely small volumes around them, i.e. below the diffraction limit. LÄS MER

  3. 17. Polyelectrolyte complexes of bottle brush copolymers : Solution and adsorption properties

    Författare :Shovsky Alexander; Per M. Claesson; Tommy Nylander; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : The aim of this thesis work was to systematically investigate the physico-chemical properties of polyelectrolyte complexes (PECs) formed by bottle brush and linear polyelectrolytes in solution and at solid / liquid interfaces. Electrostatic self-assembly of oppositely charged macromolecules in aqueous solution is a versatile strategy to construction of functional nanostructures with easily controlled properties. LÄS MER

  4. 18. Nanocellulose-based materials: from colloidal assembly to functional films

    Författare :Yingxin Liu; Lennart Bergström; German Salazar-Alvarez; Orlando Rojas; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Materials Chemistry; materialkemi;

    Sammanfattning : The assembly of nature-based nanomaterials into complex architectures is both a design principle of biological composites, e.g., wood and nacre with outstanding properties and a promising route for developing functional macroscopic materials. LÄS MER

  5. 19. Some Aspects of Physicochemical Properties of DNA and RNA

    Författare :Sandipta Acharya; Jyoti Chattopadhyaya; Piet Herdewijn; Uppsala universitet; []
    Nyckelord :Bioorganic chemistry; nucleic acids; hydrogen-bonding; stacking; single-stranded; NMR; molecular dynamics; Bioorganisk kemi;

    Sammanfattning : This thesis is based on nine research publications (I – IX) on structure and reactivity of RNA vis-à-vis DNA. The DNA and RNA are made of flexible pentose sugar units, polyelectrolytic phosphodiester backbone, and heterocyclic nucleobases. DNA stores our genetic code, whereas RNA is involved both in protein biosynthesis and catalysis. LÄS MER

  7. 20. Nano- and Micro-sized Molecularly Imprinted Polymer Particles on Solid Surfaces

    Författare :Tripta Kamra; Synkrotronljusfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Molecularly imprinted polymers (MIPs) are artificial receptors made by imprinting template molecules in a polymer matrix followed by their removal through washing to obtain a specific and selective template cavities. This property of the MIPs have made them a very efficient material for diverse applications such as chromatography, purification, drug sensing, etc. LÄS MER