Related Experiment Video
Updated: May 31, 2026
11:08
Revealing Electromechanical Control of Tissue Homeostasis Using a Two-Layer Microfluidic Device
Published on: September 19, 2025
Temperature modulation of electric fields in biological matter
Charlotte S Daniels1, Boris Rubinsky
1Department of Mechanical Engineering, University of California, Berkeley, California, United States of America. daniels.charlotte@gmail.com
Plos One
|June 23, 2011
Summary
Temperature modulation of tissue electrical properties offers precise control over pulsed electric fields (PEF) applications. This minimally invasive surgical technology can be optimized for enhanced efficacy and reduced side effects.
Area of Science:
- Biomedical Engineering
- Electrophysiology
- Minimally Invasive Surgery
Background:
- Pulsed electric fields (PEF) are utilized in various medical applications like genetic engineering and tissue ablation.
- Optimizing PEF delivery and its effects on biological tissues remains a key challenge.
Purpose of the Study:
- To investigate the hypothesis that temperature-dependent electrical properties of tissue can modulate PEF outcomes.
- To explore novel methods for controlling and optimizing PEF protocols using temperature.
Main Methods:
- Two configurations were studied: 1) simultaneous delivery of PEF and cooling via an electrode, and 2) application of cooling boundary conditions using a non-electrically active probe.
- Analysis of temperature-induced changes in tissue electrical properties and their effect on electric field distribution during PEF.
Main Results:
- Simultaneous PEF and cooling magnified and confined electric fields in cooled regions, increasing precision and reducing damage to surrounding tissues.
- The cooling probe configuration reduced electric fields in cooled regions, offering potential protection for sensitive tissues.
- Temperature was identified as a powerful mechanism to control electric fields in biological tissues.
Conclusions:
- Temperature-dependent electrical parameters provide a novel and accessible method for modulating and controlling PEF treatments.
- This approach allows for enhanced precision, targeted delivery, and protection of tissues during PEF procedures.
- Temperature modulation represents a significant advancement in optimizing minimally invasive surgical technologies like PEF.
Related Concept Videos
01:15Transmission Electron Microscopy
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400 keV in...
01:27Induced Electric Fields: Applications
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
01:12Interaction of EM Radiation with Matter: Spectroscopy
Electromagnetic (EM) radiation can be considered an oscillating electric and magnetic field propagating through a medium that can interact with matter in its path. The electric field in the radiation can interact with electrical charges in the atoms or molecules in the matter. On the other hand, the magnetic field can interact with the magnetic field in the atomic nucleus. The study of the interaction between electromagnetic radiation and matter is termed spectroscopy. Spectroscopy is the study...
01:22Motional Emf
Magnetic flux depends on three factors: the strength of the magnetic field, the area through which the field lines pass, and the field's orientation with respect to the surface area. If any of these quantities vary, a corresponding variation in magnetic flux occurs. If the area through which the magnetic field lines are passing changes, then the magnetic flux also changes. This change in the area can be of two types: the flux through the rectangular loop increases as it moves into the magnetic...
01:26Applications of EMF Measurements
Electromotive force (EMF) measurements have a broad range of applications in various fields, including chemistry and physics. The electrochemical series, an arrangement of elements in order of their standard electrode potentials, can be determined through EMF measurements. Elements with lower standard potentials can reduce ions of elements with higher standard potentials.The standard cell potential, E°, allows for the calculation of the standard reaction Gibbs energy, ΔG°, and the equilibrium...
01:14Brain Imaging
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic Stimulation (TMS).