Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

2.4K
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
2.4K
Capillary Electrophoresis: Instrumentation01:20

Capillary Electrophoresis: Instrumentation

1.8K
Capillary electrophoresis instrumentation typically consists of several key components. A high-voltage power supply generates the electric field necessary for the separation by connecting to an anode (the positively charged electrode) and a cathode (the negatively charged electrode) located in buffer reservoirs at each end of the capillary tube. The system includes a sample vial, a fused silica capillary tube coated with polyimide for mechanical strength through which the sample components...
1.8K
Charge and Current01:14

Charge and Current

6.7K
Electric charge is the most fundamental quantity in an electric circuit. The effects of electric charge are encountered daily, such as when a wool sweater sticks to the human body or when a person receives a shock while walking on a carpet.
Charge is an inherent property of the atomic particles that make up matter and is measured in units called coulombs (C). Matter is composed of atoms, each consisting of electrons, protons, and neutrons. Electrons have a negative charge (-e), while protons...
6.7K
Charging Conductors By Induction01:15

Charging Conductors By Induction

10.0K
The Earth is a good conductor of electricity, and it is so big that it can be considered an infinite source or sink of charges. It can easily exchange charges with any matter.
Generally, conductors like metals do not allow any excess charge to be present on them. Any excess charge added to metals easily flows away, for example, when a metal is placed on the Earth. This process is called earthing.
However, conductors can be charged by a process called induction. For example, consider charging a...
10.0K
Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

8.2K
Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
8.2K
MOS Capacitor01:25

MOS Capacitor

1.9K
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...
1.9K

You might also read

Related Articles

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

Sort by
Same author

Clinico-molecular predictors of durable response to immune checkpoint inhibitors (ICI) in metastatic cervical cancer (mCC).

British journal of cancer·2026
Same author

Ion-Electron Coupling-Driven Redox Behavior in Metal-Organic Frameworks.

Journal of the American Chemical Society·2026
Same author

Origin of Stabilization of Ligand-Centered Mixed Valence Ruthenium Azopyridine Complexes: DFT Insights for Neuromorphic Applications.

The journal of physical chemistry letters·2025
Same author

Causal analyses of the impact of comorbid conditions and concomitant medications on response to neoadjuvant chemotherapy in breast cancer: analysis of a multicenter prospective cohort study (CANTO).

ESMO open·2025
Same author

Extreme eutrophication and salinisation in the Coorong estuarine-lagoon ecosystem of Australia's largest river basin (Murray-Darling).

Marine pollution bulletin·2023
Same author

Unilateral or bilateral adrenalectomy in PPNAD: six cases from a single family followed up over 40 years.

Endocrine·2022

Related Experiment Video

Updated: Apr 18, 2026

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
05:57

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

Published on: March 17, 2023

4.5K

Probing the limits of gate-based charge sensing.

M F Gonzalez-Zalba1, S Barraud2, A J Ferguson3

  • 1Hitachi Cambridge Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, UK.

Nature Communications
|January 21, 2015
PubMed
Summary

This study demonstrates a new resonant gate sensor for quantum computing, achieving record charge sensitivity. This compact in situ sensor offers advantages over traditional electrometers for qubit readout.

More Related Videos

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
12:20

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions

Published on: July 22, 2013

18.8K
Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research
08:03

Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research

Published on: April 18, 2013

17.9K

Related Experiment Videos

Last Updated: Apr 18, 2026

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
05:57

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

Published on: March 17, 2023

4.5K
Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions
12:20

Fabrication of Carbon Nanotube High-Frequency Nanoelectronic Biosensor for Sensing in High Ionic Strength Solutions

Published on: July 22, 2013

18.8K
Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research
08:03

Multi-analyte Biochip MAB Based on All-solid-state Ion-selective Electrodes ASSISE for Physiological Research

Published on: April 18, 2013

17.9K

Area of Science:

  • Quantum computing
  • Solid-state physics
  • Nanotechnology

Background:

  • Quantum computation relies on precise qubit state readout.
  • External readout electrometers are common but bulky.
  • In situ gate sensors offer a compact alternative for qubit measurement.

Purpose of the Study:

  • Investigate the performance limits of resonant gate sensors for qubit readout.
  • Identify and analyze noise sources affecting gate sensor operation.
  • Compare resonant gate readout with external electrometers.

Main Methods:

  • Utilized a gate sensor strongly coupled to a double quantum dot.
  • Employed a resonant circuit to probe qubit radiofrequency polarizability.
  • Analyzed experimental factors influencing gate detection sensitivity.

Main Results:

  • Achieved a charge sensitivity of 37 μe Hz(-1/2), the best reported for this technique.
  • Demonstrated superior performance compared to external electrometers.
  • Identified key experimental factors for optimizing gate sensor sensitivity.

Conclusions:

  • Resonant gate-based readout is a promising technique for solid-state quantum computing.
  • This method offers reduced circuit complexity and enhanced charge sensitivity.
  • Further optimization can lead to even greater improvements in qubit readout.