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Bioelectrical Impedance Spectroscopy for Monitoring Mammalian Cells and Tissues under Different Frequency Domains: A
Sara Abasi1,2, John R Aggas1,3, Guillermo G Garayar-Leyva1,4
1Center for Bioelectronics, Biosensors and Biochips (C3B®), Department of Biomedical Engineering, Texas A&M University, 400 Bizzell Street, College Station, Texas 77843, United States.
Bioelectrical impedance analysis and spectroscopy (BIA/BIS) offer insights into tissue composition for diagnostics. This review explores BIA/BIS principles, frequency-dependent analysis, and its role in wearable devices and the Internet of Medical Things.
Area of Science:
- Biomedical Engineering
- Biophysics
- Medical Diagnostics
Background:
- Bioelectrical impedance analysis and spectroscopy (BIA/BIS) provide valuable data on molecular composition and tissue structure.
- The complexity of biological systems makes bioimpedance interpretation challenging yet powerful for evaluation and monitoring.
- BIA/BIS is foundational for diagnostic and monitoring systems like plethysmography and tomography.
Purpose of the Study:
- To review the biological events and principles underlying bioimpedance data analysis across different frequency ranges.
- To discuss the application and relevance of BIA/BIS in wearable devices and the Internet of Medical Things (IoMT).
Main Methods:
- Review of scientific literature focusing on bioelectrical impedance analysis and spectroscopy.
- Analysis of frequency-dependent impedance data and biological dispersion phenomena (α, β, δ, γ).
- Discussion of BIA/BIS principles, noninvasive nature, miniaturization, and technological formats.
Main Results:
- Bioimpedance analysis reveals critical information on molecular composition and physical structure for diagnostics and prognostics.
- Frequency-dependent impedance analysis, considering biological dispersions, is key to interpreting BIA/BIS data.
- BIA/BIS is noninvasive, safe, easily miniaturized, and adaptable for various biomedical implementations.
Conclusions:
- BIA/BIS is a versatile technique for assessing biological tissues, offering diagnostic and prognostic value.
- Understanding frequency-dependent impedance and dispersion phenomena is crucial for accurate bioimpedance interpretation.
- The integration of BIA/BIS into wearable technology and IoMT signifies its growing importance in remote and continuous health monitoring.
