2.5D Microscopy: Fast, High-Throughput Imaging via Volumetric Projection for Quantitative Subcellular Analysis

PLUTO / PLUTO-2 Spatial Light Modulators
Adaptive Optics / Wavefront Control Higher Order Modes / Optical Vortex / OAM Microscopy
Published on:
Authors: Ren, Jinhan & Han, Kyu Young
Abstract:
“Imaging-based single-cell analysis is essential to study the expression level and functions of biomolecules at subcellular resolution. However, its low throughput has prevented the measurement of numerous cellular features from multiples cells in a rapid and efficient manner. Here we report 2.5D microscopy that significantly improves the throughput of fluorescence imaging systems while maintaining high-resolution and single-molecule sensitivity. Instead of sequential z-scanning, volumetric information is projected onto a 2D image plane in a single shot by engineering the emitted fluorescence light. Our approach provides an improved imaging speed and uniform focal response within a specific imaging depth, which enabled us to perform quantitative single-molecule RNA measurements over a 2 × 2 mm² region within an imaging depth of ∼5 μm for mammalian cells in 30 Hz volumetric frame rate with reduced photobleaching. Our microscope also offers the ability of multicolor imaging, depth control, and super-resolution imaging.”

Restricted Access

Publication: ACS Photonics
Issue/Year: ACS Photonics, Volume 8; Number 3; Pages 933-942; 2021
DOI: 10.1021/acsphotonics.1c00012
Link: https://doi.org/10.1021/acsphotonics.1c00012

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