1,301 results found
    1. Physics of Living Systems
    2. Microbiology and Infectious Disease

    Cyanobacteria use micro-optics to sense light direction

    Nils Schuergers, Tchern Lenn ... Annegret Wilde
    The cells of a cyanobacterium act as spherical micro-lenses, allowing the cell to see a light source and move towards it.
    1. Ecology
    2. Evolutionary Biology

    Mimicry can drive convergence in structural and light transmission features of transparent wings in Lepidoptera

    Charline Sophie Pinna, Maëlle Vilbert ... Marianne Elias
    Wing transparency in mimetic butterflies and moths is achieved by an unexpected diversity of structural features, and both structures and light transmission properties of wings are under selection for convergence.
    1. Developmental Biology

    Computational 3D histological phenotyping of whole zebrafish by X-ray histotomography

    Yifu Ding, Daniel J Vanselow ... Keith C Cheng
    X-ray histotomography produces the first 3-dimensional images with the combined submicron resolution, centimeter fields-of-view, soft-tissue contrast, and potential throughput to enable quantitative, histopathological and centimeter-scale phenotyping for whole-organism phenomics.
    1. Neuroscience

    Double-μPeriscope, a tool for multilayer optical recordings, optogenetic stimulations or both

    Mototaka Suzuki, Jaan Aru, Matthew E Larkum
    Interactions between near but distinct (<1 mm) structures such as cortical layers in the rodent brain can be studied by a new micro-optical tool that is low-cost and capable of multilayer optical recordings, optogenetic stimulations, or both.
    1. Cell Biology
    2. Developmental Biology

    Whole-organism 3D quantitative characterization of zebrafish melanin by silver deposition micro-CT

    Spencer R Katz, Maksim A Yakovlev ... Keith C Cheng
    Melanin staining for micro-CT imaging, using a novel application of ionic silver deposition, enables qualitative and quantitative 3D analysis of zebrafish pigmentation and reveals subtle phenotypes missed by light microscopy.
    1. Cell Biology
    2. Physics of Living Systems

    Rod nuclear architecture determines contrast transmission of the retina and behavioral sensitivity in mice

    Kaushikaram Subramanian, Martin Weigert ... Moritz Kreysing
    Establishing retinal contrast transmission as a novel determinant of mammalian fitness, this research adds functional significance to a prominent exception of nuclear organization, previously described in nocturnal rod photoreceptor cells.
    1. Microbiology and Infectious Disease

    Thermosynechococcus switches the direction of phototaxis by a c-di-GMP-dependent process with high spatial resolution

    Daisuke Nakane, Gen Enomoto ... Takayuki Nishizaka
    Colour-controlled c-di-GMP signalling mediates directional switch of phototaxis via within-a-pole regulation of type IV pili in rod-shaped cyanobacteria Thermosynechococcus vulcanus.
    1. Neuroscience

    Rapid whole brain imaging of neural activity in freely behaving larval zebrafish (Danio rerio)

    Lin Cong, Zeguan Wang ... Quan Wen
    The integration of a novel high spatiotemporal resolution volume imaging technique and a fast 3D tracking system allows capturing whole brain neural activities in a freely behaving larval zebrafish.
    1. Neuroscience

    Probing the functional impact of sub-retinal prosthesis

    Sébastien Roux, Frédéric Matonti ... Frédéric Chavane
    Existing artificial retinas produce distorted and imprecise activation of the visual system, but reverse engineering promises to refine the induced activation patterns.
    1. Neuroscience
    2. Physics of Living Systems

    Gigapixel imaging with a novel multi-camera array microscope

    Eric E Thomson, Mark Harfouche ... Eva A Naumann
    A new multi camera imaging platform simultaneously captures large-area, high-resolution video of unconstrained small model organisms and provides behavioral measurements that span multiple spatial scales.

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