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Related Concept Videos

Atomic Force Microscopy01:08

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Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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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...
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Related Experiment Video

Updated: Apr 1, 2026

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Simultaneous differential spinning disk fluorescence optical sectioning microscopy and nanomechanical mapping atomic

Adelaide Miranda1, Marco Martins2, Pieter A A De Beule1

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Summary

A novel combined microscopy platform merges fluorescence optical sectioning microscopy with atomic force microscopy for simultaneous imaging. This system overcomes challenges like sample heating and mechanical noise, enabling detailed characterization of biological structures.

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Area of Science:

  • Biophysics
  • Microscopy
  • Materials Science

Background:

  • Combined microscopy techniques are essential for understanding complex biological systems.
  • Existing methods face limitations in simultaneous operation and data acquisition.
  • Advanced imaging platforms are needed to overcome these challenges.

Purpose of the Study:

  • To present a new combined microscopy platform integrating Differential Spinning Disk (DSD) fluorescence optical sectioning microscopy with Atomic Force Microscopy (AFM).
  • To enable distortion-free, simultaneous operation of both microscopy techniques with standard probes.
  • To address and mitigate challenges associated with combined system operation, such as sample heating and mechanical noise.

Main Methods:

  • Development of a combined platform featuring DSD fluorescence optical sectioning microscopy and AFM.
  • Implementation of a time-independent illumination scheme for the AFM cantilever.
  • Identification and application of solutions to minimize mechanical noise transfer from the DSD unit to the AFM.
  • Characterization of lipid structures using the integrated system.

Main Results:

  • Achieved distortion-free simultaneous fluorescence optical sectioning and nanomechanical mapping.
  • Successfully mitigated sample heating and mechanical noise issues.
  • Demonstrated the platform's capability in characterizing complex lipid structures (DOPC/DOPS).

Conclusions:

  • The developed combined microscopy platform offers a powerful tool for simultaneous, high-resolution imaging and nanomechanical analysis.
  • This integrated system overcomes previous limitations, enabling advanced investigations of biological and material samples.
  • The platform facilitates detailed characterization of lipid structures, paving the way for further research in biophysics and materials science.