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Showing 1–3 of 3 results
Advanced filters: Author: Zdeněk Petrášek Clear advanced filters

  • Concentration gradients of certain molecules termed 'morphogens' are known to control tissue development during embryogenesis, but how exactly these gradients are formed remains unclear. Using the technique of fluorescence correlation spectroscopy, Fgf8 morphogen gradients are now shown to be established and maintained in living zebrafish by two essential factors: free diffusion of single molecules away from the source and a sink function of the receiving cells.

    • Shuizi Rachel Yu
    • Markus Burkhardt
    • Michael Brand
    Research
    Nature
    Volume: 461, P: 533-536

  • The application of three-photon excitation to biomedical imaging is demonstrated by combining the three-photon excitation properties of ZnS nanocrystals and the visible emission from Mn2+ dopants. The biocompatible, doped nanocrystals are used for high-resolution cellular imaging and in vivo tumour-targeting imaging under non-invasive conditions.

    • Jung Ho Yu
    • Seung-Hae Kwon
    • Taeghwan Hyeon
    Research
    Nature Materials
    Volume: 12, P: 359-366