idw – Informationsdienst Wissenschaft
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Nachrichten, Termine, Experten
Moderne wissenschaftiche Kameras sind empfindlich und schnell genug, um Bilder von frei beweglichen, einzelnen Molekülen aufzunehmen. Damit können erstmalig physiologische Prozesse in lebenden Zellen in Echtzeit auf der Ebene einzelner Moleküle beobachtet werden. Die Grafik zeigt die Bewegungen einzelner fluoreszierender Proteinmoleküle (die vier kleineren Signale im Vordergrund) und einzelner "Quantenpunkte" (größere Signale im Hintergrund) in Zeitabständen von 3/1000 Sekunden.
(Grafik: Ulrich Kubitscheck; in: Grünwald, D., A. Hoekstra, T. Dange, V. Buschmann, and U. Kubitscheck. 2006. Direct Observation of Single Protein Molecules in Aqueous Solution. ChemPhy
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