Sökning: "mixed molecular layers"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden mixed molecular layers.

  1. 11. Structure of Self-Assembled Monolayers on Gold Studied by NEXAFS and Photoelectron Spectroscopy

    Författare :Somsakul Watcharinyanon; Lars Johansson; Hans Siegbahn; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Self-assembled monolayer SAMs ; X-ray photoelectron spectroscopy XPS ; Near-edge X-ray absorption fine structure NEXAFS spectroscopy; Infrared reflection absorption spectroscopy IRRAS ; contact angle measurements; Kelvin probe measurements; oligo phenyleneethynylene OPE ; Porphyrin-functionalized OPE; Tetraphenylporphyrin; Ferrocene-terminated alkanethiol; thiol; silane; Au 111 ; Physics; Fysik; Physics; Fysik;

    Sammanfattning : Self-assembled monolayers (SAMs) provide well-defined and ordered films of molecules spontaneously chemisorbed on a surface. By designing molecules with desired functionalities, such molecular film can be interesting for a range of applications from molecular electronics to catalysis. LÄS MER

  3. 12. Adsorption Properties of Triblock Copolymers at Solid Surfaces

    Författare :Krister Eskilsson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Physical chemistry; Ellipsomery; Surface force; Adsorption; Triblock Copolymer;

    Sammanfattning : The interfacial behaviour of nonionic triblock copolymers of the type poly(ethylene oxide-tetrahydrofurane-ethylene oxide) has been systematically examined at different types of surfaces. It is shown how the chemical nature of the substrate greatly influences the adsorption behaviour of block copolymers. LÄS MER

  4. 13. Non-ionic block copolymers and proteins at the air-water interface

    Författare :Brita Rippner Blomqvist; Per M. Claesson; Cosima Stubenrauch; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; Fysikalisk kemi; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : The behavior of block copolymer and protein films at interfaces is of central importance to their function in many application areas. Poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) block copolymers function e.g. LÄS MER

  5. 14. Preterm intraventricular cerebral hemorrhage: role of cell-free hemoglobin

    Författare :Alex Adusei Agyemang; Lund Pediatrik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Intraventricular hemorrhage; Preterm birth; Haptoglobin; Alpha 1 microglobulin; cerebellar hypoplasia; periventricular white matter; cell-free hemoglobin;

    Sammanfattning : Cerebral intraventricular hemorrhage in preterm infants continues to be a major clinical problem associated with neurodevelopmental abnormalities manifested by cognitive, behavioral, attentional, social and motor deficits. Hypothesis and aims: The central thesis is that the cytotoxicity of extravasated blood and of consequently released cell-free hemoglobin(Hb) is pivotal for the pathophysiological events causally involved in brain injury. LÄS MER

  7. 15. Concatemerization of Synthetic Oligonucleotides, Assembly on Surface and Ligand Interactions

    Författare :Lu Sun; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DNA formation; DNA concatemer; self-assemble; gel electrophoresis; DNA-binding; hybridization; QCM-D;

    Sammanfattning : DNA nanotechnology has become an important research field because of its advantages in high predictability and accuracy of base-paring recognition. DNA concatemer, one of the simplest DNA constructs in shape, have been found as efficient signal amplifiers in several biosensors for different applications. LÄS MER