Functional imaging of zebrafish neuronal activity by Bessel beam light-sheet microscopy

Author(s):  
L. Turrini ◽  
T. Alterini ◽  
C. Müllenbroich ◽  
A. Gheisari ◽  
L. Sacconi ◽  
...  
Author(s):  
Gustavo Castro-Olvera ◽  
Jorge Madrid-Wolff ◽  
Omar E. Olarte ◽  
Estefanía Estévez-Priego ◽  
Adriaan A. Ludl ◽  
...  

Author(s):  
Marie Caroline Müllenbroich ◽  
Ludovico Silvestri ◽  
Lapo Turrini ◽  
Antonino Paolo Di Giovanna ◽  
Tommaso Alterini ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sota Takanezawa ◽  
Takashi Saitou ◽  
Takeshi Imamura

AbstractTwo-photon excitation can lower phototoxicity and improve penetration depth, but its narrow excitation range restricts its applications in light-sheet microscopy. Here, we propose simple illumination optics, a lens-axicon triplet composed of an axicon and two convex lenses, to generate longer extent Bessel beams. This unit can stretch the beam full width at half maximum of 600–1000 μm with less than a 4-μm waist when using a 10× illumination lens. A two-photon excitation digital scanned light-sheet microscope possessing this range of field of view and ~2–3-μm axial resolution is constructed and used to analyze the cellular dynamics over the whole body of medaka fish. We demonstrate long-term time-lapse observations over several days and high-speed recording with ~3 mm3 volume per 4 s of the embryos. Our system is minimal and suppresses laser power loss, which can broaden applications of two-photon excitation in light-sheet microscopy.


2018 ◽  
Vol 12 (1) ◽  
pp. e201800094 ◽  
Author(s):  
Hao Jia ◽  
Xianghua Yu ◽  
Yanlong Yang ◽  
Xing Zhou ◽  
Shaohui Yan ◽  
...  

2017 ◽  
Author(s):  
Caroline M. Müllenbroich ◽  
Ludovico Silvestri ◽  
Lapo Turrini ◽  
Tommaso Alterini ◽  
Antonino P. Di Giovanna ◽  
...  

AbstractLight-sheet microscopy (LSM) has proven a useful tool in neuroscience to image whole brains with high frame rates at cellular resolution. LSM is employed either in combination with tissue clearing to reconstruct the cyto-architecture over the entire mouse brain or with intrinsically transparent samples like zebrafish larvae for functional imaging. Inherently to LSM, however, residual opaque objects cause stripe artifacts, which obscure features of interest and, during functional imaging, modulate fluorescence variations related to neuronal activity. Here, we report how Bessel beams reduce streaking artifacts and produce high-fidelity structural data. Furthermore, using Bessel beams, we demonstrate a fivefold increase in sensitivity to calcium transients and a 20 fold increase in accuracy in the detection of activity correlations in functional imaging. Our results demonstrate the contamination of data by systematic and random errors through Gaussian illumination and furthermore quantify the increase in fidelity of such data when using Bessel beams.


2015 ◽  
Vol 12 (5) ◽  
pp. 379-380 ◽  
Author(s):  
Sébastien Wolf ◽  
Willy Supatto ◽  
Georges Debrégeas ◽  
Pierre Mahou ◽  
Sergei G Kruglik ◽  
...  

2020 ◽  
pp. 21-54
Author(s):  
Raghav K. Chhetri ◽  
Philipp J. Keller

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