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

Periodic Classification of the Elements04:00

Periodic Classification of the Elements

59.0K
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
59.0K
Electron Affinity03:07

Electron Affinity

43.3K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.3K
Affinity and Avidity01:41

Affinity and Avidity

38.8K
Overview
38.8K
Elements and Compounds01:27

Elements and Compounds

104.5K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
104.5K
Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

24.2K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.2K
Classification of Elements and Compounds02:54

Classification of Elements and Compounds

73.1K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
73.1K

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

Kinetically Divergent Dimanganese-Tyrosyl Radical Cofactor Assembly in <i>Listeria monocytogenes</i> Class I Ribonucleotide Reductase.

Biochemistry·2026
Same author

A family portrait of lanmodulin selectivity for enhanced rare-earth separations.

Nature chemical biology·2026
Same author

Nar1 binds the cytosolic iron sulfur cluster assembly targeting complex via a bipartite interaction interface.

bioRxiv : the preprint server for biology·2026
Same author

A Conserved Cia1-Cia2 Interface Mediates Client Recruitment in the Cytosolic Iron-Sulfur Cluster Assembly Pathway.

Journal of the American Chemical Society·2025
Same author

Mechanically and Chemically Robust Lanmodulin-Functionalized Silk Sponges for Rare Earth Element Sequestration.

ACS biomaterials science & engineering·2025
Same author

EF-Hand Battle Royale: Hetero-ion Complexation in Lanmodulin.

JACS Au·2024

相关实验视频

Updated: Jan 29, 2026

Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity
08:46

Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity

Published on: January 15, 2014

9.6K

一个选择性的,基于蛋白质的光传感器,具有稀土元素的皮科莫尔亲和力

Joseph A Mattocks1, Jackson V Ho1, Joseph A Cotruvo1

  • 1Department of Chemistry , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States.

Journal of the American Chemical Society
|February 7, 2019
PubMed
概括

一个新的光传感器LaMP1能够高灵敏地检测稀土元素. 这种工具揭示了细菌如何运输这些关键金属,

科学领域:

  • 生物化学
  • 环境科学
  • 微生物学

背景情况:

  • 稀土元素的检测对于采矿和回收至关重要.
  • 现有的化物 (Ln) 检测方法缺乏灵敏度和速度.
  • 了解Ln的生物作用需要敏感的检测工具.

研究的目的:

  • 开发一种基因编码的光传感器,用于选择性Ln检测.
  • 在Methylobacterium extorquens中研究Lns的细胞内运输.
  • 在细菌中探索潜在的Ln吸收系统.

主要方法:

  • 基于兰莫杜林的光传感器 (LaMP1) 的设计.
  • 描述LaMP1对各种金属离子的反应.
  • 使用LaMP1研究Methylobacterium extorquens中的Ln传输.

主要成果:

  • 对于所有Ln (III) 离子,LaMP1具有很高的选择性和敏感性 (明显的Kds为10-50 pM).
  • 已证明早期Lns (La(III) -Nd(III)) 的选择性传输到M. extorquens的细胞质中.
  • 提供了一种涉及分泌化剂的新型Ln(III) 吸收系统的证据.

更多相关视频

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits
12:36

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

Published on: February 16, 2014

35.0K
Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
08:46

Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli

Published on: January 6, 2015

33.6K

相关实验视频

Last Updated: Jan 29, 2026

Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity
08:46

Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity

Published on: January 15, 2014

9.6K
A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits
12:36

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

Published on: February 16, 2014

35.0K
Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli
08:46

Green Fluorescent Protein-based Expression Screening of Membrane Proteins in Escherichia coli

Published on: January 6, 2015

33.6K

结论:

  • 对于敏感和选择性的REE检测,LaMP1是一个强大的工具.
  • 发现了一种令人惊的细菌细胞内Ln传输机制.
  • 在环境和工业应用中,LaMP1可以推进REE分析.