Browse our latest Physics of Living Systems articles

Page 14 of 54
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Protein compactness and interaction valency define the architecture of a biomolecular condensate across scales

    Anton A Polyansky, Laura D Gallego ... Bojan Zagrovic
    A colloid fractal cluster model provides a quantitative link between the atomistic features of an intrinsically disordered polypeptide and the spatial organization of the biomolecular condensate it forms.
    1. Neuroscience
    2. Physics of Living Systems

    Continuous, long-term crawling behavior characterized by a robotic transport system

    James Yu, Stephanie Dancausse ... Mason Klein
    Drosophila larvae manipulated by an automated system can be observed for 30+ hr, and new analysis methods of long-timescale trajectories reveal behavioral features previously inaccessible, such as a bimodal distribution of thermal navigation efficiency in individual animals.
    1. Physics of Living Systems

    Spontaneous body wall contractions stabilize the fluid microenvironment that shapes host–microbe associations

    Janna C Nawroth, Christoph Giez ... Thomas CG Bosch
    Spontaneous contractions allow shedding of the fluid boundary layer and thereby stabilize microbiota.
    1. Ecology
    2. Physics of Living Systems

    Multiplexed microfluidic screening of bacterial chemotaxis

    Michael R Stehnach, Richard J Henshaw ... Jeffrey S Guasto
    A multiplexed microfluidic device was developed to facilitate high-throughput screening of bacterial chemotaxis on a single chip and demonstrated across a range of microbes, chemostimulants, and chemical gradient conditions.
    1. Physics of Living Systems

    Fluid extraction from the left-right organizer uncovers mechanical properties needed for symmetry breaking

    Pedro Sampaio, Sara Pestana ... Susana Santos Lopes
    Zebrafish have a physiological time-window of 1 hr for breaking left-right symmetry and are highly sensitive to the left-right organizer anterior fluid mechanics rather than to the nature of its fluid content.
    1. Cell Biology
    2. Physics of Living Systems

    Kinetochore-fiber lengths are maintained locally but coordinated globally by poles in the mammalian spindle

    Manuela Richter, Lila Neahring ... Sophie Dumont
    Live imaging and physical perturbations of spindles with unfocused poles reveal that mammalian spindle length emerges locally from kinetochore-fibers, but that global cues from focused spindle poles are needed to coordinate k-fibers across space and time and accurately segregate chromosomes.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    Regulation of chromatin microphase separation by binding of protein complexes

    Omar Adame-Arana, Gaurav Bajpai ... Samuel Safran
    Chromatin-binding proteins regulate the effective solvent quality experienced by chromatin and impact global chromatin organization in the nucleus.
    1. Cell Biology
    2. Physics of Living Systems

    Physical basis of the cell size scaling laws

    Romain Rollin, Jean-François Joanny, Pierre Sens
    A theoretical model explains how protein density and nuclear to cell volume ratio are maintained during cell growth, discusses conditions under which this breaks down, and highlights the importance of metabolites, mainly amino acids such as glutamate, in this homeostasis.
    1. Cell Biology
    2. Physics of Living Systems

    Cell Size: Putting scaling laws on a physical foundation

    Yiyang Ye, Jie Lin
    As a cell changes size during the cell cycle, why does its density remain constant?
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    1. Microbiology and Infectious Disease
    2. Physics of Living Systems

    Substrate stiffness impacts early biofilm formation by modulating Pseudomonas aeruginosa twitching motility

    Sofia Gomez, Lionel Bureau ... Sigolene Lecuyer
    The spatial organization of pathogenic bacteria into microcolonies can be shaped by the stiffness of the substrate that they colonize, via modifications of the bacterial motility.