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関連する概念動画

ATP Driven Pumps II: P-type Pumps01:34

ATP Driven Pumps II: P-type Pumps

The P-type pumps are a large family of integral membrane transporter ATPases. They are divided into five major types based on substrate specificity, from I to V.
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...
ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and are...
Primary Active Transport01:29

Primary Active Transport

In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction they would not...
Primary Active Transport01:47

Primary Active Transport

In contrast to passive transport, active transport involves a substance being moved through membranes in a direction against its concentration or electrochemical gradient. There are two types of active transport: primary active transport and secondary active transport. Primary active transport utilizes chemical energy from ATP to drive protein pumps that are embedded in the cell membrane. With energy from ATP, the pumps transport ions against their electrochemical gradients—a direction they...
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...
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...

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関連する実験動画

Updated: May 10, 2026

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing
10:45

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing

Published on: August 29, 2025

バイオインスピレーションによる人工単離ポンプ

Huacheng Zhang1, Xu Hou, Lu Zeng

  • 1Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.

Journal of the American Chemical Society
|June 19, 2013
PubMed
まとめ
この要約は機械生成です。

研究者は,pH反応性ダブルゲートナノチャネルを使用して,新しいバイオインスピレーションによるイオンポンプを開発しました. この人工システムは,生物学的イオンポンプを模倣し,高度なアプリケーションのためのインテリジェントイオン輸送制御を可能にします.

さらに関連する動画

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
11:55

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution

Published on: August 16, 2016

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

関連する実験動画

Last Updated: May 10, 2026

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing
10:45

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing

Published on: August 29, 2025

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution
11:55

Membrane Transport Processes Analyzed by a Highly Parallel Nanopore Chip System at Single Protein Resolution

Published on: August 16, 2016

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

科学分野:

  • ナノテクノロジーと材料科学 ナノテクノロジーと材料科学
  • バイオインスピレーションエンジニアリング
  • 物理化学 物理化学

背景:

  • 人工機能ナノチャネルは,ナノ流体,エネルギー変換,バイオセンサの潜在能力を提供しています.
  • 生物学的イオンポンプに似たインテリジェントイオン輸送制御を複製することは,依然として大きな課題です.
  • 既存の人工イオンチャネルは,主に受動的輸送特性を有しています.

研究 の 目的:

  • 知的イオン輸送制御を備えたバイオインスピレーションによる人工イオンポンプの設計と実証.
  • 新しいナノチャネル設計を使用して,生物学的イオンポンプに匹敵するアクティブイオンポンプ機能を達成するために.
  • スマートナノ流体装置およびエネルギー変換におけるアプリケーションを探求する.

主な方法:

  • 協力的なpH応答のダブルゲートナノチャネルを使用したユニークなバイオインスピレーション単離ポンプの製造.
  • ゲート行動を制御するために,対称的および非対称的なpH環境を使用してナノチャネルの刺激.
  • 異なったpH条件と濃度グラデーション下でのイオン輸送特性の分析.

主要な成果:

  • 交互に交差するゲートのイオンポンププロセスを,対称なpH刺激の下で実証した.
  • 非対称なpH刺激の下,イオンポンプをイオンチャネルに変換した.
  • 組み合わせたpH刺激下では故障防止イオンポンプ機能を示し,濃度グラデーション下ではプロセスが再現可能である.

結論:

  • 開発されたバイオインスピレーションによるイオンポンプは,生物学的イオンポンプの主要なイオン輸送特性を成功裏に複製しています.
  • 協力的なpH応答のダブルゲートナノチャネルは,分子およびイオン輸送のインテリジェント制御を提供します.
  • この技術は,アクティブな輸送制御ナノ流体装置,エネルギー変換,および海水淡化のための約束を保持しています.