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Updated: May 2, 2026

Sample Preparation for Single Virion Atomic Force Microscopy and Super-resolution Fluorescence Imaging
Published on: January 2, 2014
Application perspectives of localization microscopy in virology.
C Cremer1, R Kaufmann, M Gunkel
1Institute of Molecular Biology (IMB), 55128, Mainz, Germany, c.cremer@imb-mainz.de.
Spectral Precision Distance/Position Determination Microscopy (SPDM) achieves nanoscale resolution for studying viruses and cellular processes. This superresolution technique enables single-molecule localization for enhanced biological imaging and diagnostics.
Area of Science:
- Biophysics
- Cell Biology
- Virology
Background:
- Localization microscopy offers single-molecule resolution for biological imaging.
- Spectral Precision Distance/Position Determination Microscopy (SPDM) is a specific embodiment of this technique.
Purpose of the Study:
- To explore the applications of SPDM in virology and cell biology.
- To demonstrate SPDM's capability for nanoscale imaging and molecular analysis.
Main Methods:
- Utilized SPDM with conventional fluorophores and standard sample preparation.
- Applied SPDM for superresolution imaging of tobacco mosaic virus aggregation.
- Employed SPDM with cluster analysis to study influenza A virus entry and receptor distribution.
- Investigated murine cytomegalovirus glycoprotein arrangement using SPDM.
Main Results:
- Achieved single-molecule localization accuracy better than 8 nm for virus particles.
- Visualized virus particle distribution and infection-related protein changes during influenza infection.
- Determined molecular arrangement of viral glycoproteins in cellular membranes.
Conclusions:
- SPDM provides high-resolution insights into viral infections and cellular mechanisms.
- SPDM is versatile, applicable to various viruses and cellular structures.
- Future applications include virus detection, biodetection devices, and nanotool optimization.
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