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

Non-gated Ion Channels01:24

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.
Non-gated Ion Channels01:24

Non-gated Ion Channels

Ion channels are specialized proteins on the plasma membrane that allow charged ions to pass down their electrochemical gradient. Their main function is to maintain the membrane potential which is critical for cell viability. These channels are either gated or non-gated and can transport more than a thousand ions within milliseconds for the cellular event to occur.
Compared to the gated ion channels, the non-gated channels, also known as leakage or passive channels, have no gating mechanism.
Ion Channels01:19

Ion Channels

The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow specific...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

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...

You might also read

Related Articles

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

Sort by
Same author

Legget-Garg inequality for a quantum model of ion channels.

Scientific reports·2026
Same author

Information Entropy Metrics to Address the Complexity of Cooperative Gating of Ion Channels.

Entropy (Basel, Switzerland)·2026
Same author

Applying Entropic Measures, Spectral Analysis, and EMD to Quantify Ion Channel Recordings: New Insights into Quercetin and Calcium Activation of BK Channels.

Entropy (Basel, Switzerland)·2025
Same author

Interference of Particles with Fermionic Internal Degrees of Freedom.

Entropy (Basel, Switzerland)·2024
Same author

Procrustes analysis of a shape of pediatric supracondylar humerus fractures.

Scientific reports·2024
Same author

Potassium Channels, Glucose Metabolism and Glycosylation in Cancer Cells.

International journal of molecular sciences·2023

Related Experiment Video

Updated: May 28, 2026

Recapitulation of an Ion Channel IV Curve Using Frequency Components
10:14

Recapitulation of an Ion Channel IV Curve Using Frequency Components

Published on: February 8, 2011

Quantum Capacity of Continuously Observed Ion Channels.

Paulina Trybek1, Jerzy Dajka1

  • 1Institute of Physics, University of Silesia in Katowice, 75. Pułku Piechoty 1, 41-500 Chorzów, Poland.

Entropy (Basel, Switzerland)
|May 26, 2026
PubMed
Summary
This summary is machine-generated.

Continuous quantum measurements significantly alter ion channel information capacity. The study explores how measurement type, duration, and strength affect this quantum information channel

Keywords:
continuous quantum measuremention channelsquantum capacity

More Related Videos

One-channel Cell-attached Patch-clamp Recording
13:07

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

Reconstitution of a Transmembrane Protein, the Voltage-gated Ion Channel, KvAP, into Giant Unilamellar Vesicles for Microscopy and Patch Clamp Studies
11:42

Reconstitution of a Transmembrane Protein, the Voltage-gated Ion Channel, KvAP, into Giant Unilamellar Vesicles for Microscopy and Patch Clamp Studies

Published on: January 22, 2015

Related Experiment Videos

Last Updated: May 28, 2026

Recapitulation of an Ion Channel IV Curve Using Frequency Components
10:14

Recapitulation of an Ion Channel IV Curve Using Frequency Components

Published on: February 8, 2011

One-channel Cell-attached Patch-clamp Recording
13:07

One-channel Cell-attached Patch-clamp Recording

Published on: June 9, 2014

Reconstitution of a Transmembrane Protein, the Voltage-gated Ion Channel, KvAP, into Giant Unilamellar Vesicles for Microscopy and Patch Clamp Studies
11:42

Reconstitution of a Transmembrane Protein, the Voltage-gated Ion Channel, KvAP, into Giant Unilamellar Vesicles for Microscopy and Patch Clamp Studies

Published on: January 22, 2015

Area of Science:

  • Quantum physics
  • Information theory
  • Biophysics

Background:

  • Ion channels are crucial biological components.
  • Understanding their information processing capabilities is key.
  • Quantum mechanics offers a novel framework for channel analysis.

Purpose of the Study:

  • To develop a quantum model for ion channels.
  • To investigate the information χ-capacity of ion channels under continuous quantum measurements.
  • To analyze how measurement parameters influence channel behavior.

Main Methods:

  • Developed a quantum model for ion channels.
  • Treated ion channels as information channels modified by quantum measurements.
  • Analyzed the information χ-capacity as a function of measurement parameters (observable type, duration, strength).

Main Results:

  • Information χ-capacity shows diverse behaviors based on measurement conditions.
  • Observed regimes of rapid decay in χ-capacity.
  • Identified conditions where χ-capacity remains finite over extended observation times.

Conclusions:

  • Continuous quantum observation significantly impacts ion channel information-theoretic properties.
  • The study provides insights into quantum effects on biological information processing.
  • Results highlight the potential for manipulating channel dynamics through quantum measurements.