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Updated: Apr 14, 2026

Measuring the Mechanical Properties of Living Cells Using Atomic Force Microscopy
Published on: June 27, 2013
Enhancement of accuracy and precision of cell Young's modulus measurement: FEM optimization and algebraic
Lingyao Yu1, Xuzheng Yang1, Sen Geng1
1Guangxi Key Laboratory of Optoelectronic Information Processing, School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China.
Abstract:
This study addresses the inaccuracy of the Hertz model in measuring single-cell Young's modulus via probe-based indentation. We propose two complementary correction strategies: finite element model optimization and an algebraic compensation algorithm. Both methods significantly enhance measurement accuracy and consistency within the biologically relevant 400-1200 Pa range (typical for adherent cancer cells). The compensation algorithm achieves a relative error below 5.2%. This work establishes a robust framework for cellular mechanical characterization, paving the way for incorporating greater biological complexity in future models.
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