相关实验视频

Updated: Jan 22, 2026

Single-Molecule Imaging of Nuclear Transport
12:13

Single-Molecule Imaging of Nuclear Transport

Published on: June 9, 2010

13.8K

通过单分子交叉路口诱导的高导电性传输路径

Parisa Yasini, Sepideh Afsari, Haowei Peng

    Journal of the American Chemical Society
    |June 28, 2019
    PubMed
    概括

    通过电极电位控制分子的方向,可以实现高导电性单分子连接. 与传统方法相比, 这种分子电子技术的突破显著提高了导电能力,

    更多相关视频

    A Simple, Robust, and High Throughput Single Molecule Flow Stretching Assay Implementation for Studying Transport of Molecules Along DNA12:05

    A Simple, Robust, and High Throughput Single Molecule Flow Stretching Assay Implementation for Studying Transport of Molecules Along DNA

    Published on: October 1, 2017

    8.6K
    A Proteoliposome-Based Efflux Assay to Determine Single-molecule Properties of Cl- Channels and Transporters07:47

    A Proteoliposome-Based Efflux Assay to Determine Single-molecule Properties of Cl- Channels and Transporters

    Published on: April 20, 2015

    10.3K

    相关概念视频

    Antiepileptic Drugs: GABAergic Pathway Potentiators01:18

    Antiepileptic Drugs: GABAergic Pathway Potentiators

    γ-aminobutyric acid or GABA, plays a pivotal role as an inhibitory neurotransmitter in the brain. GABA pathway potentiators, also known as GABAergic drugs, are a class of pharmaceutical agents designed to enhance the functioning of the GABAergic system. These medications primarily treat epilepsy, a neurological disorder characterized by recurrent seizures.
    The key GABA pathway potentiators used in epilepsy management are as follows.
    Benzodiazepines are a well-known class of drugs used for...
    1.3K
    Short-distance Transport of Resources02:12

    Short-distance Transport of Resources

    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.
    17.6K
    Facilitated Transport01:19

    Facilitated Transport

    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...
    146.6K
    C4 Pathway and CAM01:27

    C4 Pathway and CAM

    Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
    C4 Pathway
    The C4 pathway is used by plants such as...
    48.9K
    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...
    197.0K
    Secondary Active Transport01:55

    Secondary Active Transport

    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...
    137.4K