Paralleled needle-like-beam image scanning microscopy for fast volumetric super-resolution imaging

Area of Science:

• Biomedical Imaging
• Microscopy
• Cell Biology

Background:

• Super-resolution (SR) microscopy is vital for biological research.
• Volumetric imaging of thick samples with SR microscopy is slow and complex.

Purpose of the Study:

• To develop an enhanced parallelized image scanning microscopy (ISM) system for rapid SR volumetric imaging.
• To overcome speed and complexity limitations in SR imaging of biological samples.

Main Methods:

• Incorporated a pinhole illumination system to create a needle-like beam, extending the depth of focus.
• Utilized a multiplane prism for synchronized capture of multifocal signals from eight sample planes.
• Improved reconstruction algorithms to reduce raw frame requirements.

Main Results:

• Achieved sub-second SR imaging of a 42 × 37 × 1.9 μm³ volume.
• Maintained axial imaging synchronization during rapid volumetric acquisition.
• Successfully demonstrated real-time SR volumetric imaging on live cell samples.

Conclusions:

• The enhanced parallelized ISM system significantly accelerates SR volumetric imaging.
• This breakthrough enables real-time SR imaging of dynamic biological processes in live cells.
• The system shows great potential for advancing biomedical imaging applications.