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Published on: December 29, 2015
A programmable electroculture platform for direction-dependent alternating electric field delivery in cancer cell
Fatih Senturk1, İsmail Cengiz Koçum2, Eda Şevval Aksan3
1Department of Biophysics, Duzce University, Duzce University, Medical Faculty, Biophysics Department, Duzce, 81060, Turkey.
Physics in Medicine and Biology
|August 13, 2026
Summary
Alternating electric fields (AEFs) disrupt tumor cell growth. Periodically switching AEF orientation enhances cancer cell death more than fixed fields, offering a new cancer therapy approach.
Area of Science:
- Biophysics
- Cell Biology
- Biotechnology
Background:
- Alternating electric fields (AEFs) at intermediate frequencies disrupt mitosis and inhibit proliferation in rapidly dividing tumor cells.
- Investigating cellular responses to AEFs requires specialized systems for controlled exposure.
Purpose of the Study:
- To develop and validate a programmable in vitro AEF exposure system for studying cellular responses.
- To compare the efficacy of fixed vs. periodically switched AEF orientations on cancer cell viability.
Main Methods:
- Developed a 0-500 kHz, 1-3 V/cm electroculture platform compatible with 12-well plates.
- Utilized 3D finite-element modeling for electric field distribution and SAR analysis.
- Assessed cytotoxicity in glioblastoma (U-118 MG) and neuroblastoma (SH-SY5Y) cells using MTT assays and fluorescence imaging.
Main Results:
- AEF treatment significantly reduced cancer cell viability by up to 80% after 72 hours.
- Malignant cells exhibited pronounced cytotoxic effects, while endothelial cells showed lower sensitivity.
- Periodic polarization switching (PPS) with a 300s interval reduced viability by an additional ~15% compared to fixed-field orientations.
Conclusions:
- Periodically switched AEF orientations demonstrate enhanced cellular responses compared to fixed orientations.
- The developed platform enables configurable studies on AEF parameters for cancer research.
- This study presents the first demonstration of enhanced AEF efficacy with PPS in SH-SY5Y neuroblastoma cells.
