関連する実験動画

Updated: Aug 8, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt
11:10

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

ガラスのナノ孔電極での光子ゲート輸送

Gangli Wang1, Andrew K Bohaty, Ilya Zharov

  • 1Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, UT 84112, USA.

Journal of the American Chemical Society
|October 13, 2006
PubMed
まとめ

研究者らは,ナノ孔内の分子輸送を制御するための光化学スイッチを開発した. 紫外線は電荷を帯びた分子を遮断し,可視光や電解質は輸送を回復し,選択的分子配送を可能にします.

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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.
G-Protein Gated Ion Channels01:21

G-Protein Gated Ion Channels

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Sensory organs,...
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.
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Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
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P-N junction

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Metal-Semiconductor Junctions

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Schottky Barriers
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