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Updated: Apr 12, 2026

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

Highly Resolved Intravital Striped-illumination Microscopy of Germinal Centers

Published on: April 9, 2014

Super-resolution two-photon microscopy via scanning patterned illumination.

Ben E Urban¹, Ji Yi¹, Siyu Chen¹

¹Department of Biomedical Engineering, Northwestern University, Evanston, Illinois, USA.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|May 15, 2015

Summary

This summary is machine-generated.

We developed two-photon scanning patterned illumination microscopy (2P-SPIM) for super-resolution imaging, achieving 141 nm resolution. This technique enhances imaging depth and detail in biological samples like cells and retinal tissue.

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Area of Science:

Biophotonics
Microscopy
Cell Biology

Background:

Two-photon microscopy offers deep tissue penetration but is limited by diffraction.
Super-resolution techniques enhance image detail beyond the classical diffraction limit.

Purpose of the Study:

To develop a super-resolution method for two-photon microscopy.
To improve the lateral resolution of two-photon imaging.
To enable high-resolution imaging of biological structures in complex tissues.

Main Methods:

Developed two-photon scanning patterned illumination microscopy (2P-SPIM).
Utilized temporally modulated excitation to create patterned illumination fields.
Combined nine illuminations with structured illumination reconstruction.

Main Results:

Achieved a lateral resolution of 141 nm with 2P-SPIM.
Demonstrated a 1.9-fold improvement over the diffraction limit.
Successfully imaged actin cytoskeleton in mammalian cells and 3D structures in scattering retinal tissue.

Conclusions:

2P-SPIM provides super-resolution capabilities for two-photon microscopy.
The technique significantly enhances resolution for biological imaging.
2P-SPIM is effective for imaging cellular structures and deep tissues.