Related Experiment Video
Updated: Feb 28, 2026

12:58
Characterizing Individual Protein Aggregates by Infrared Nanospectroscopy and Atomic Force Microscopy
Published on: September 12, 2019
10.3K
Seeing the Unseen: Super-Resolution Microscopy in Protein Aggregation Research.
Molly J M Turner1,2, Junsheng Chen1,2, Nikos S Hatzakis1,2,3,4
1Department of Chemistry, Faculty of Science, University of Copenhagen, Copenhagen 2100, Denmark.
Chemical & Biomedical Imaging
|February 27, 2026
Summary
Super-resolution microscopy visualizes biomolecular structures, aiding neurodegenerative disease research. Techniques like STED, SIM, and SMLM offer detailed insights into protein aggregation mechanisms and pathology.
Area of Science:
- Biophysics
- Cell Biology
- Neuroscience
Background:
- Super-resolution microscopy overcomes diffraction limits for detailed biomolecular visualization.
- Protein aggregation is central to neurodegenerative diseases like Alzheimer's and Parkinson's.
Purpose of the Study:
- To review super-resolution microscopy techniques for studying protein aggregation.
- To compare STED, SIM, and SMLM for protein aggregation analysis.
- To highlight applications in understanding disease pathology.
Main Methods:
- Principles of Stimulated Emission Depletion (STED) microscopy.
- Principles of Structured Illumination Microscopy (SIM).
- Principles of Single-Molecule Localization Microscopy (SMLM).
Main Results:
- Comparison of STED, SIM, and SMLM strengths and limitations for protein aggregation studies.
- Overview of recent applications in visualizing aggregate morphology and dynamics.
- Insights into protein aggregation interactions with cellular components.
Conclusions:
- Super-resolution microscopy provides crucial insights into protein aggregation in neurodegenerative diseases.
- STED, SIM, and SMLM are powerful tools for dissecting aggregation mechanisms.
- Further applications promise advancements in understanding disease pathology.
Related Concept Videos
Super-resolution Fluorescence Microscopy
14.7K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
14.7K
Protein Dynamics in Living Cells
2.8K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.8K

