MASDET-A fast and user-friendly multiplatform software for mass determination by dark-field electron microscopy

Area of Science:

• Biophysics
• Proteomics
• Microscopy

Background:

• Electron microscopy has been pivotal for measuring biological nanoparticle mass since the 1960s.
• It is the sole method for determining the mass of large biological structures and mass-per-length of filaments.
• Its capability to sort heterogeneous samples by mass and shape positions it as a crucial tool for single-cell proteomics.

Purpose of the Study:

• To introduce MASDET, a novel multiplatform software package for streamlining electron microscopy-based mass analysis.
• To enhance the speed and efficiency of mass evaluation and optimization procedures.
• To enable the analysis of thicker biological samples through Monte Carlo simulations of multiple scattering.

Main Methods:

• Development of a user-friendly, multiplatform software package (MASDET) compatible with MATLAB and standalone operation.
• Integration of Monte Carlo simulations for modeling multiple scattering events.
• Implementation of a graphical interface to simplify mass evaluation and optimization.

Main Results:

• MASDET significantly streamlines mass evaluation and accelerates optimization procedures.
• The software facilitates mass analysis of thicker samples by incorporating Monte Carlo simulations.
• It enables the generation of mass thickness maps for detailed sample characterization.

Conclusions:

• MASDET enhances the utility of electron microscopy for precise mass determination of biological nanoparticles and structures.
• The software's capabilities, including advanced simulation and user-friendly interface, advance single-cell proteomics and the analysis of complex biological samples.