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Showing 1–5 of 5 results
Advanced filters: Author: Norbert H. Freitag Clear advanced filters

  • Although monolayers of N-heterocyclic carbenes (NHCs) readily form on metals, surface reactivity usually hinders their self-assembly on semiconductors. Now, it has been shown that thermally stable, well-ordered monolayers of NHCs can be formed on silicon surfaces. A large reduction in work function is observed and steric effects enable sufficient diffusivity of the NHCs.

    • Martin Franz
    • Sandhya Chandola
    • Mario Dähne
    Research
    Nature Chemistry
    Volume: 13, P: 828-835

  • The mechanisms governing the ontogeny and maturation of the mucosal immune system during the postnatal period are not well understood. Here the authors characterize the homing kinetic, anatomical distribution and maturation of early intestinal CD4 T cells and provide insights into active T-cell suppression during the postnatal period.

    • Natalia Torow
    • Kai Yu
    • Mathias W. Hornef
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-12

  • A quantitative magnetic force microscopy technique is presented that maps one magnetic stray-field component and its spatial derivative at the same time. Furthermore, this technique is applied to investigate individual circular magnetic nano-domains in MnNiGa bulk samples providing bubble diameters and the spatial extent in depth.

    • Norbert H. Freitag
    • Christopher F. Reiche
    • Thomas Mühl
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-13

  • Flexural oscillations of singly-clamped nanowires can be detected by interferometry for diameters above 50 nm, while below such diameter the detection becomes challenging. The authors detect force derivatives as small as 10-9 N/m at room temperature by measuring hybrid vibration modes originated by coupling a nanowire and a cantilever.

    • Maneesha Sharma
    • Aniruddha Sathyadharma Prasad
    • Thomas Mühl
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-7