Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Photoluminescence: Applications01:14

Photoluminescence: Applications

430
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
430
The Photochemical Reaction Center01:29

The Photochemical Reaction Center

4.2K
Reaction centers are pigment-protein complexes that initiate energy conversion from photons to chemical entities. Therefore, photochemical reaction center is a more appropriate term that describes these complexes. The Nobel laureates Robert Emerson and William Arnold provided the first experimental evidence of photochemical reaction centers by demonstrating the participation of nearly 2,500 chlorophyll molecules for the release of just one molecule of oxygen. Despite thousands of photosynthetic...
4.2K
Channel Rhodopsins01:11

Channel Rhodopsins

2.6K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
2.6K
The Antenna Complex01:42

The Antenna Complex

6.0K
Plants and other photosynthetic organisms comprise pigments capable of absorption of direct sunlight. These pigments are present in the reaction center - the main site of photochemical reactions as well as in the antenna complex. Under average light conditions, the rate at which reaction center pigments absorb light is far below the electron transport chain's capacity. As a result, the reaction center alone cannot provide enough energy to drive photosynthesis. The photosynthetic efficiency...
6.0K
Photosystem I01:27

Photosystem I

62.9K
Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
62.9K
Photosystem II01:22

Photosystem II

71.1K
The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
The pigment molecules are arranged across  two photosystem domains — the antenna complex and the reaction center. The main aim of the pigment...
71.1K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

In situ iodine generation enables solution-phase polymerization of organic pollutants for continuous resource recovery from water.

Nature communications·2026
Same author

Oxygen-oxygen bond cleavage enables efficient photocatalytic H<sub>2</sub>O<sub>2</sub> production via an *O<sub>2</sub> dissociation pathway.

Nature communications·2026
Same author

Ce<sup>4+</sup>-Triggered Stable Pyrene Radical Cation Formation in a Hydrogen-Bonded Organic Framework Enabling on-Site Dual-Mode Sensing.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

A porous phosphate-rich β-cyclodextrin polymer for efficient and broad-spectrum enrichment of antibiotics.

Analytica chimica acta·2026
Same author

Cationic Covalent Organic Frameworks as a Solid-phase Microextraction Fiber Coating for the Rapid and Sensitive Determination of Legacy and Emerging Brominated Flame Retardants in Water.

Analytical chemistry·2026
Same author

In vivo monitoring of the impact of microplastic particle size on the absorption and transport of Pyrethroids in Malabar spinach.

Food chemistry·2026
Same journal

Stabilizing Pd Catalysts on Pentacoordinated Al<sup>3+</sup> Sites of Alumina for Efficient Hydrogenation of Hexafluoropropylene.

ChemPlusChem·2026
Same journal

Design, Synthesis, and Performance Characterization of BODIPY-Based NIR Probes for Aβ<sub>42</sub> Aggregate Detection.

ChemPlusChem·2026
Same journal

Eliminate the Metal Ion in the Edible Oil Based on High Extraction pH-Switchable Deep Eutectic Solvents.

ChemPlusChem·2026
Same journal

Cinoplatin: An Efficient Platinum(IV) Prodrug Effective in Inhibiting the Growth of Cervical Cancer.

ChemPlusChem·2026
Same journal

A Mitochondria-Targeted Flavokawain A Derivative Suppresses Lymphoma by Disrupting Oxidative Phosphorylation.

ChemPlusChem·2026
Same journal

CALPUCK: An Open Python Tool for Cremer-Pople Ring Puckering Analysis Including a New 2D Mapping of Seven-Membered Rings.

ChemPlusChem·2026
查看所有相关文章

相关实验视频

Updated: Jul 18, 2025

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
11:20

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation

Published on: August 30, 2017

7.5K

具有光介导活动的光子酶.

Zeyu Gong1, Linjing Tong2, Junhui Wang1

  • 1School of Chemical Engineering and Technology, Sun Yat-sen University, 519082, Zhuhai, China.

ChemPlusChem
|August 25, 2023
PubMed
概括
此摘要是机器生成的。

纳米酶,具有类似酶活性的工程纳米粒子,提供了增强的生物催化剂. 光纳米酶利用电磁波来提高性能,从而实现了超越自然酶的新型应用.

关键词:
电磁波是一种电磁波.纳米材料的使用方法纳米酶纳米酶是一种纳米酶.摄影法规 摄影法规

更多相关视频

Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo
07:19

Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo

Published on: August 4, 2021

4.7K
Two-Photon-Based Photoactivation in Live Zebrafish Embryos
09:10

Two-Photon-Based Photoactivation in Live Zebrafish Embryos

Published on: December 24, 2010

11.6K

相关实验视频

Last Updated: Jul 18, 2025

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
11:20

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation

Published on: August 30, 2017

7.5K
Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo
07:19

Bioluminescent Optogenetics 2.0: Harnessing Bioluminescence to Activate Photosensory Proteins In Vitro and In Vivo

Published on: August 4, 2021

4.7K
Two-Photon-Based Photoactivation in Live Zebrafish Embryos
09:10

Two-Photon-Based Photoactivation in Live Zebrafish Embryos

Published on: December 24, 2010

11.6K

科学领域:

  • 生物技术和纳米材料科学 生物技术和纳米材料科学

背景情况:

  • Fe3O4纳米粒子表现出类似天然过氧化酶的活性,激发了纳米酶的开发.
  • 纳米酶模仿自然酶,克服了脆弱性和可循环利用性差等局限性.
  • 纳米酶提供可编程性和稳定性,使其能够与电磁波集成,用于光响应应用.

研究的目的:

  • 总结一下不同波长的电磁波如何刺激光纳米酶.
  • 为了突出由电磁刺激引起的增强生物催化性能.
  • 与原始纳米酶相比,展示光纳米酶的新功能.

主要方法:

  • 审查关于纳米酶活性和电磁波相互作用的研究.
  • 通过不同波长分析光纳诺酶激活的机制.
  • 将光纳米酶的生物催化效率与电磁刺激和没有电磁刺激进行比较.

主要成果:

  • 电磁波作为光纳米酶的有效外部刺激.
  • 不同的波长可以诱导或增强特定的生物催化功能.
  • 光纳米酶展示了与传统纳米酶无法实现的独特能力.

结论:

  • 光纳米酶代表了生物催化剂的重大进步.
  • 量身定制的电磁波刺激为纳米酶解锁了各种各样的应用.
  • 这项技术为未来的生物灵感创新提供了一个有希望的平台.