Modeling and Evaluation of Penetration Process Based on 3D Mechanical Simulation.

Area of Science:

• Biomedical Engineering
• Cell Biology
• Biophysics

Background:

• Cell penetration is crucial for micromanipulation procedures like cell injection.
• Significant cell deformation during penetration can cause damage, impacting experimental outcomes.
• Reducing mechanical stress on cells is vital for maintaining viability.

Purpose of the Study:

• To model and evaluate the cell penetration process in biological micromanipulation.
• To identify key parameters influencing cell deformation and stress.
• To reduce cell damage during micromanipulation procedures.

Main Methods:

• Development of a finite element model (FEM) to simulate cell penetration.
• Verification of the FEM through comparison with experimental cell deformation data.
• Analysis of mechanical responses by varying micropipette geometry, cell properties, and penetration depth.

Main Results:

• Quantification of cell deformation and intracellular stress during penetration.
• Identification of relationships between operational parameters and cell mechanical responses.
• Establishment of a correlation between intracellular stress and cell penetration depth.

Conclusions:

• The developed FEM accurately simulates cell penetration, aiding in understanding mechanical stress.
• Optimized operation plans can be derived from the evaluation results.
• Enhanced efficiency and safety of cell penetration procedures are achievable.