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

Capacitor With A Dielectric

Capacitor With A Dielectric

Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...

Design Example: Capacitance Multiplier Circuit

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

MOS Capacitor

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...

Biasing of P-N Junction

Biasing of P-N Junction

The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...

Dielectric Polarization in a Capacitor

Dielectric Polarization in a Capacitor

The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

You might also read

Related Articles

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

Sort by

Same author

Guizhi-Shaoyao-Zhimu Decoction regulates the IL-17R-MAPK pathway to alleviate rheumatoid arthritis.

Journal of ethnopharmacology·2026

Same author

Ordered waves in a memristive excitable media under asymmetrical diffusion.

Cognitive neurodynamics·2026

Same author

Naphthalene-based hydroxamate HDAC inhibitors with anti-breast tumor activity.

Molecular diversity·2026

Same author

Genome-wide analysis of the PRT gene family in rice reveals that OsPRT7 plays a significant role in heat stress response.

BMC plant biology·2026

Same author

Firing behaviors of a neuron with two memristor channels.

Cognitive neurodynamics·2026

Same author

Deep learning-based independent lymph node segmentation in esophageal cancer: a precise and efficient approach for radiotherapy planning.

Quantitative imaging in medicine and surgery·2026

Search research articles

Related Experiment Video

Updated: Jun 7, 2025

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Published on: March 17, 2023

Setting a double-capacitive neuron coupled with Josephson junction and piezoelectric source.

Yixuan Chen¹, Feifei Yang², Guodong Ren¹

¹Department of Physics, Lanzhou University of Technology, Lanzhou, 730050 China.

Cognitive Neurodynamics

|November 18, 2024

Summary

External magnetic fields and acoustic waves can influence neural activity by altering electric currents. This study explores how Josephson junctions and artificial cell membranes can model and control neural firing patterns through energy manipulation.

Keywords:

Hamilton energy Piezoelectric neuron Self-adaption Stochastic resonance

More Related Videos

One-channel Cell-attached Patch-clamp Recording

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

Related Experiment Videos

Last Updated: Jun 7, 2025

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Published on: March 17, 2023

One-channel Cell-attached Patch-clamp Recording

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

Area of Science:

Neuroscience
Physics
Electrical Engineering

Background:

Voice perception involves acoustic-electric conversion in the auditory system.
External magnetic fields can modulate neural activity via components like memristors and Josephson junctions.
Artificial cell membranes, modeled by capacitor combinations, replicate cell membrane electrical activity.

Purpose of the Study:

To theoretically investigate the impact of field diversity on neural circuits using capacitive variables.
To model auditory neuron energy dynamics and verify the Hamilton energy function.
To explore stochastic resonance and adaptive control of neural firing patterns.

Main Methods:

A piezoelectric neural circuit with two capacitors, an inductor, and a nonlinear resistor was coupled using a Josephson junction.
Helmholtz theorem was used to verify the Hamilton energy function of an equivalent auditory neuron.
Adaptive laws controlled bifurcation parameters, and energy shifts managed mode selection.

Main Results:

Stochastic resonance was detected in the neural circuit when subjected to noisy excitation.
The average energy reached a peak under stochastic resonance conditions.
External energy injection from acoustic or magnetic fields effectively controlled neural firing patterns.

Conclusions:

Josephson junctions and artificial cell membranes provide a framework for understanding neural responses to external fields.
Stochastic resonance plays a role in detecting neural signals.
External energy sources can be harnessed to precisely control neuronal firing patterns.