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August 9, 2026Proceedings of the National Academy of Sciences

Large-FOV, dual-region, two-photon fluorescence lifetime imaging microscopy (LD-2P-FLIM) for multiparameter and quantitative brain function imaging

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Authors

SYShiwei YeYGYufeng GaoMDMengying Deng

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Overview

Randomized trial demonstrates advanced imaging of brain functions, highlighting neural activity and neurochemical shifts.

Key Points

  • This research aims to enhance imaging of brain functions by developing a new microscopy technique that captures multiple parameters simultaneously.
  • Developed large-FOV, dual-region, two-photon fluorescence lifetime imaging microscopy (LD-2P-FLIM) with 3 × 3 mm FOV and 0.7 μm resolution.
  • Used adaptive optics for FOV extension and a temporal multiplexing system for simultaneous two-region imaging.
  • Implement a field programmable gate array module for demultiplexing fluorescence signals from various brain regions.
  • Successfully monitored neural activities across multiple cortical regions and observed neurovascular coupling.
  • Achieved long-term imaging of microglial responses to neuron injury and quantified calcium concentrations in vivo.
  • Demonstrated a FLIM throughput of up to 15.73 megapixels/s and improved temporal resolution.

Cite This Study

Ye et al. (2026) studied this question.

synapsesocial.com/papers/6a782d5f2e1896536c840538https://doi.org/10.1073/pnas.2536213123
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