Sökning: "Self-Assembly Monolayer"

Visar resultat 1 - 5 av 17 avhandlingar innehållade orden Self-Assembly Monolayer.

  1. 1. Fatty Acid Self-Assembly at the Air–Water Interface : Curvature, Patterning, and Biomimetics: A Study by Neutron Reflectometry and Atomic Force Microscopy

    Författare :Erik Bergendal; Mark W. Rutland; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; self-assembly; branched fatty acids; Langmuir films; Langmuir–Blodgett; nanopatterning; AFM; neutron reflectometry; grenade fettsyror; Langmuir monoskikt; Langmuir–Blodgett; självassociering; nanostrukturerade material; AFM; neutronspridning; Kemi; Chemistry;

    Sammanfattning : For more than a hundred years of interfacial science, long chain fatty acids have been the primary system for the study of floating monolayers at the air–water interface due to their amphiphilic nature and system simplicity: an insoluble hydrocarbon chain and a soluble carboxyl group at a flat air–water interface. Despite―or perhaps rather due to―the assumed simplicity of such systems and the maturity of the research field, the seemingly fundamentally rooted notion of a two-dimensional water surface has yet to be challenged. LÄS MER

  3. 2. Phthalocyanine interfaces : the monolayer region

    Författare :Pål Palmgren; Mats Göthelid; Mats Fahlman; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phthalocyanine; III-V semiconductor; transition metal oxides; adsorption; self-assembly; Material physics with surface physics; Materialfysik med ytfysik;

    Sammanfattning : Organic molecules adsorbed on inorganic substrates are the topics of interest in this thesis. Interfaces of this kind are found in dye sensitized solar cells that convert solar energy to electricity, a promising environmentally friendly energy source which might provide a route to replace fossil fuels. LÄS MER

  4. 3. Self Assembly at the Liquid Air Interface

    Författare :Niga Petru; Rutland Mark; Ye Shen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; VSFS; SFG; interface; crown ethers; ethylene oxides; ionic liquids; fatty acids; domains.; Surface and colloid chemistry; Yt- och kolloidkemi;

    Sammanfattning : The aim of this work is to study the interfacial properties of amphiphilic compounds at the liquid–air interface in an attempt to develop a comprehensive understanding of their orientation as well as the influence of their interaction with the solvent on the interfacial layer properties. Using Vibrational Sum Frequency Spectroscopy (VSFS) as the main tool, the molecular structure of the amphiphilic layer and the amphiphile–solvent relation can be illuminated in great detail – it is arguably the most sensitive surface spectroscopy currently available. LÄS MER

  5. 4. Microfluidic devices for biotechnology and organic chemical applications

    Författare :Helene Andersson; KTH; []
    Nyckelord :microfluidics; beads; SNP; microfabrication; microcontact printing; self-assembly;

    Sammanfattning : Imagine if you could combine the power and capabilities ofan entire laboratory in the palm of your hand. Advances inmicrofluidic chip technology promise to integrate andminiaturize multiple lab processes into a single palm-sizeddevice. LÄS MER

  7. 5. Integration and Fabrication Techniques for 3D Micro- and Nanodevices

    Författare :Andreas C. Fischer; Frank Niklaus; Karl F. Böhringer; KTH; []
    Nyckelord :Microelectromechanical systems; MEMS; Nanoelectromechanical systems; NEMS; silicon; wafer-level; chip-level; through silicon via; TSV; packaging; 3D packaging; vacuum packaging; liquid encapsulation; integration; heterogeneous integration; wafer bonding; microactuators; shape memory alloy; SMA; wire bonding; magnetic assembly; self-assembly; 3D; 3D printing; focused ion beam; FIB;

    Sammanfattning : The development of micro and nano-electromechanical systems (MEMS and NEMS) with entirely new or improved functionalities is typically based on novel or improved designs, materials and fabrication methods. However, today’s micro- and nano-fabrication is restrained by manufacturing paradigms that have been established by the integrated circuit (IC) industry over the past few decades. LÄS MER