Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Theory of Metallic Conduction

Theory of Metallic Conduction

The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

40 Hz-rTMS modulates spike-LFP coupling and improves cognitive function in 5xFAD mice.

Experimental neurology·2026

Same author

Functional decline in the final years of life: A multicohort study.

BMC medicine·2026

Same author

S100A8/A9-High Macrophages Activate Intestinal Fibroblasts via mCCL6/hCCL15-CCR1 Axis to Drive Intestinal Fibrosis in Crohn's Disease.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

The irisin-PINK1/Parkin axis plays an essential role in mediating microglial mitophagy: A crucial mechanism for exercise-induced neuroprotection against Parkinson's disease.

Biochimica et biophysica acta. Molecular basis of disease·2026

Same author

Long-term risk of major adverse cardiovascular events in patients with epilepsy: Roles of childhood onset and antiseizure medications.

Epilepsy research·2026

Same author

Resting-state neural oscillations of the motor system influence the resting motor threshold.

Scientific reports·2026

Search research articles

Related Experiment Video

Updated: Jan 18, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

Method research on magneto-acoustic-electric tomography using liquid conductor.

Yuheng Wang¹, Junjie Lin¹, Yi Wu¹

¹State Key Laboratory of Advanced Medical Materials and Devices, Institute of Biomedical Engineering, Tianjin Institutes of Health Science, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China.

Medical Physics

|September 12, 2025

Summary

Magneto-acoustic-electric tomography (MAET) imaging is improved using a gallium-based liquid conductor and M-sequence coded excitation. This novel method significantly enhances signal-to-noise ratio (SNR) and imaging speed for better tumor detection.

Keywords:

coded excitation liquid conductor magneto‐acoustic tomography signal‐to‐noise ratio

More Related Videos

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Published on: January 16, 2020

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Related Experiment Videos

Last Updated: Jan 18, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Ultrasound Velocity Measurement in a Liquid Metal Electrode

Published on: August 5, 2015

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors

Published on: January 16, 2020

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Author Spotlight: A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Area of Science:

Biomedical Imaging
Electrical Impedance Tomography

Background:

Magneto-acoustic-electric tomography (MAET) offers potential for noninvasive imaging of tissue electrical properties, crucial for early tumor detection.
Current MAET applications are limited by low signal-to-noise ratio (SNR) and prolonged imaging times.

Purpose of the Study:

To enhance MAET performance by introducing a novel method combining a high-conductivity gallium-based liquid conductor with M-sequence coded excitation.
To overcome the limitations of low SNR and long imaging times in MAET for improved practical applications.

Main Methods:

Comparative simulation analysis of Barker code and M-sequence for MAET SNR improvement.
Experimental validation using a gel-liquid conductor model, 0.3T magnetic field, and focused ultrasound transducer.
In vivo MAET imaging of liquid conductors in mouse tissues using 31bit M-sequence coded excitation and B-scan reconstruction.

Main Results:

M-sequence demonstrated superior SNR enhancement over Barker code in simulations, particularly with longer bit lengths.
Experimental results showed a ~13 dB increase in peak SNR (PSNR) with 31bit M-sequence compared to single-pulse excitation, outperforming 13bit Barker code.
M-sequence maintained stable central frequency and provided clearer boundary delineation in complex geometries, with successful in vivo visualization of liquid conductors in mice.

Conclusions:

The developed MAET framework effectively integrates a liquid conductor and M-sequence coded excitation.
This approach significantly improves SNR, accelerates imaging, and enhances reconstruction quality.
The findings provide a strong foundation for the clinical translation of MAET technology.