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Showing 1–8 of 8 results
Advanced filters: Author: Klaus Kroy Clear advanced filters

  • The surface temperature of a hot levitating nanoparticle in a rarified gas can be determined from its non-equilibrium Brownian motion.

    • Klaus Kroy
    News & Views
    Nature Nanotechnology
    Volume: 9, P: 415-417

  • Standard rheology tells us how a cell responds to deformation. But ramping up the frequency reveals more about its internal dynamics and morphology, mapping a route to improved drug treatments — and possible insight into the malignancy of cancers.

    • Klaus Kroy
    News & Views
    Nature Physics
    Volume: 13, P: 728-729

  • Single-molecule force spectroscopy provides useful quantitative information about the properties of macromolecules. Otto and colleagues non-invasively inspect the tension dynamics in a taut strand of DNA, thereby extending the use of single-molecule force spectroscopy to the study of macromolecular dynamics.

    • Oliver Otto
    • Sebastian Sturm
    • Klaus Kroy
    ResearchOpen Access
    Nature Communications
    Volume: 4, P: 1-7

  • Dynamic force spectroscopy is widely applied to probe molecular interactions by forcible bond breaking, but it currently lacks an analytical theory that spans the divide between experiment and simulation. Here, such a unified framework is developed and shown to be accurate for slow and fast loading.

    • Jakob T. Bullerjahn
    • Sebastian Sturm
    • Klaus Kroy
    ResearchOpen Access
    Nature Communications
    Volume: 5, P: 1-10

  • Megaripples are sand landforms found in wind-blown environments. A newly identified characteristic signature of the underlying bimodal sand transport process is found in the grain-size distribution on megaripples and could lend insight into transport conditions on Earth and other planetary bodies.

    • Katharina Tholen
    • Thomas Pähtz
    • Klaus Kroy
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • Wind-mediated ripples form on a centimetre scale in sand, and in dunes on a scale spanning tens of metres, but patterns on intermediate scales are rare. A theory now fills the gap by predicting megaripples, which resemble structures seen on Mars.

    • Marc Lämmel
    • Anne Meiwald
    • Klaus Kroy
    Research
    Nature Physics
    Volume: 14, P: 759-765

  • Wind tunnel experiments and numerical modelling reveal the existence of two distinct ripples on Earth: centimetre-scale impact ripples and decimetre-scale hydrodynamic ripples, akin to those in water and on Mars.

    • Hezi Yizhaq
    • Katharina Tholen
    • Itzhak Katra
    Research
    Nature Geoscience
    Volume: 17, P: 66-72

  • Time-delayed interactions involving perception, decision, and reaction, are omnipresent in the living world. Here, the delayed self-propulsion of a microswimmer toward a target gives rise to chiral orbital motion via a symmetry-breaking bifurcation. Additional swimmers synchronize and stabilize it.

    • Xiangzun Wang
    • Pin-Chuan Chen
    • Frank Cichos
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-9