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関連する概念動画

Pore Transport and Ion-Pair Transport01:17

Pore Transport and Ion-Pair Transport

1.3K
Pore transport and ion-pair formation are critical mechanisms for the absorption and distribution of drugs in the body.
Pore transport, also known as convective transport, is a process where small molecules like urea, water, and sugars rapidly cross cell membranes as though there were channels or pores in the membrane. Although direct microscopic evidence is limited  but the concept of pores or channels is widely accepted based on physiological evidence. Despite the lack of direct...
1.3K
Facilitated Transport01:19

Facilitated Transport

151.8K
The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a...
151.8K
Primary Active Transport01:47

Primary Active Transport

201.0K
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...
201.0K
Secondary Active Transport01:55

Secondary Active Transport

138.3K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
138.3K
Short-distance Transport of Resources02:12

Short-distance Transport of Resources

17.8K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.8K
Protein-protein Interfaces02:04

Protein-protein Interfaces

14.8K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.8K

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関連する実験動画

Updated: Feb 14, 2026

Imaging Corrosion at the Metal-Paint Interface Using Time-of-Flight Secondary Ion Mass Spectrometry
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Imaging Corrosion at the Metal-Paint Interface Using Time-of-Flight Secondary Ion Mass Spectrometry

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層のインターフェースは,イオンを素早く輸送します.

Claudio Ampelli1

  • 1Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, Messina, Italy.

Science (New York, N.Y.)
|February 12, 2026
PubMed
まとめ
この要約は機械生成です。

新しい階層的な固体-電解質インターフェーズは,工業的な条件下で効率的なアンモニアの生産を可能にします. この画期的な発見により,様々な用途のための持続可能なアンモニア合成が進んでいます.

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Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

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Imaging Corrosion at the Metal-Paint Interface Using Time-of-Flight Secondary Ion Mass Spectrometry
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Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
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Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis
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科学分野:

  • 電気化学 電気化学について
  • マテリアルサイエンス 材料科学
  • 化学工学は化学工学というものです.

背景:

  • アンモニアの合成は,世界の農業と産業にとって極めて重要です.
  • ハーバー・ボッシュプロセスのような現在のアンモニア生産方法は,エネルギー密集的で,化石燃料に依存しています.
  • 持続可能で効率的なアンモニア合成経路の開発は,重要な課題です.

研究 の 目的:

  • アンモニア生産のための階層的な固体-電解質インターフェーズの可能性を調査する.
  • このインターフェーズの性能を工業的な運用条件下で評価する.
  • アンモニア合成のためのよりグリーンな代替案を探求する.

主な方法:

  • 階層的な固体-電解質インターフェーズ構造の製造.
  • アンモニア合成のためのインターフェーズの電気化学試験.
  • アンモニア収量とファラダイク効率の分析.
  • シミュレートされた産業運用条件での評価.

主要な成果:

  • 階層的な固体-電解質インターフェーズは,有意なアンモニアの生産能力を示した.
  • 工業的に重要な条件下で,高い収穫量と効率が観察されました.
  • インターフェーズ構造は安定し,持続的な動作に有効であることが証明されました.

結論:

  • 階層的な固体-電解質インターフェーズは,効率的なアンモニア生産のための実行可能で有望なアプローチです.
  • この技術は,持続可能で工業的に拡張可能なアンモニア合成への潜在的な経路を提供します.
  • さらなる研究により,インターフェーズ設計を最適化し,性能を向上させることができます.