Browse our latest Physics of Living Systems articles

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    1. Physics of Living Systems

    Shape selection and mis-assembly in viral capsid formation by elastic frustration

    Carlos I Mendoza, David Reguera
    Nucleation, elasticity theory, and simulations were combined to construct a general phase diagram that elucidates the conditions for successful viral assembly and the key factors to prevent it.
    1. Cell Biology
    2. Physics of Living Systems

    Centering and symmetry breaking in confined contracting actomyosin networks

    Niv Ierushalmi et al.
    Novel mechanisms for cellular centering and symmetry breaking involving persistent contractile actomyosin flows and their hydrodynamic interactions with the fluid cytosol are presented and studied using a minimal, reconstituted system.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Delayed antibiotic exposure induces population collapse in enterococcal communities with drug-resistant subpopulations

    Kelsey M Hallinen et al.
    Collapse of bacterial communities containing antibiotic-resistant and susceptible cells can be driven by increased population size or delayed drug exposure.
    1. Cell Biology
    2. Physics of Living Systems

    Microneedle manipulation of the mammalian spindle reveals specialized, short-lived reinforcement near chromosomes

    Pooja Suresh et al.
    Directly exerting force on the mammalian spindle reveals local and short-lived reinforcement in the spindle center, well-suited to preserve connections to chromosomes over seconds and yet allow remodeling over minutes.
    1. Physics of Living Systems

    Sperm chemotaxis is driven by the slope of the chemoattractant concentration field

    Héctor Vicente Ramírez-Gómez et al.
    The slope of the chemoattractant concentration gradient is a driving force for sperm chemotaxis, by coordinating the entrainment of information flow between sensing, signaling and motility.
    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    The transpeptidase PBP2 governs initial localization and activity of the major cell-wall synthesis machinery in E. coli

    Gizem Özbaykal et al.
    For initiation of cell-wall insertion, the cross-linking enzyme PBP2 stably binds to a component of the cell envelope that is different from MreB filaments.
    1. Physics of Living Systems

    Stochastic yield catastrophes and robustness in self-assembly

    Florian M Gartner et al.
    Fluctuations in the availability of particles for binding can completely jeopardize yield in heterogeneous self-assembly.
    1. Physics of Living Systems

    Reversal of contractility as a signature of self-organization in cytoskeletal bundles

    Martin Lenz
    Quantitative, experimentally testable predictions allow discrimination between contraction mechanisms in disordered actomyosin and microtubule/motor bundles.
    1. Physics of Living Systems

    Animal Behavior: Whale breaching says it loud and clear

    Alexander J Werth, Charles L Lemon
    A whale leaping above the surface expends an enormous amount of energy, displaying its health and strength to peers and potential mates.
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    1. Physics of Living Systems

    Energetic and physical limitations on the breaching performance of large whales

    Paolo S Segre et al.
    Muscle power-generating capabilities, and not energetic limitations, limit the breaching abilities of the largest whales.