Imaging functional maturation of pancreatic beta-cells and neuronal circuit activity in Zebrafish in vivo using two-photon three-axis digital scanned lightsheet microscopy

Here we have developed a novel large-field high-resolution two-photon digital scanned light-sheet microscopy (2P3A-DSLM) based on ultrafast axial scanning of illumination focal spot with a tunable acoustic gradient (TAG) index device. This new technique provides a sub-micron axial resolution with a large field of view in deep tissues. In vivo imaging with 2P3A-DSLM resolves functional maturation of pancreatic beta cells and neuron circuit activities in live Zebrafish embryos.