FC_analysis

FC_analysis analyzes Atomic Force Microscopy (AFM) force curves and force volume maps to generate elasticity and deformability images for nanomechanical characterization of samples.


Key Features:

  • Automatic Analysis: Processes single force curves and entire force volume maps to produce elasticity and deformability images.
  • Adaptability: Accepts user-specified detector sensitivity, scanner-z sensitivity, cantilever elastic constant, and map acquisition modality for analysis.
  • Customizable Methodologies: Supports multiple analysis methodologies with adjustable fitting parameters and stepwise control of the analysis procedure.
  • Rectangular Image Analysis: Analyzes rectangular portions of images to enable localized assessment of inhomogeneous samples.
  • Young’s Modulus Mapping: Reconstructs Young’s modulus maps at different penetration depths to enable force tomography.

Scientific Applications:

  • Nanomechanical characterization: Quantifies elasticity, stiffness, and adhesion of biological specimens from AFM data.
  • Depth-resolved profiling (force tomography): Maps mechanical properties as a function of penetration depth using Young’s modulus reconstructions.
  • Localized analysis of inhomogeneous samples: Performs subregion mechanical mapping via rectangular image analysis.
  • Integration with topography: Couples mechanical property maps with high-resolution topographic reconstructions for combined analysis.

Methodology:

Processes AFM force curves and force volume maps to generate elasticity and deformability images; applies detector sensitivity, scanner-z sensitivity, and cantilever elastic constant values; performs fitting with adjustable parameters across supported analysis methodologies; analyzes rectangular image regions; reconstructs Young’s modulus maps at different penetration depths (force tomography) and couples mechanical property maps with topographic reconstructions.

Topics

Details

Tool Type:
plugin
Operating Systems:
Windows
Programming Languages:
MATLAB
Added:
7/29/2018
Last Updated:
6/16/2020

Operations

Publications

Dinarelli S, Girasole M, Longo G. FC_analysis: a tool for investigating atomic force microscopy maps of force curves. BMC Bioinformatics. 2018;19(1). doi:10.1186/s12859-018-2265-4. PMID:29976136. PMCID:PMC6034258.

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