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Updated: Feb 2, 2026

Optical Control of Living Cells Electrical Activity by Conjugated Polymers
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Optical Control of Living Cells Electrical Activity by Conjugated Polymers

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細胞とゼブラフィッシュの金属イオンプローブの光学制御 高度に選択的なDNA酵素をアップコンバージョンナノ粒子に結合する

Zhenglin Yang, Kang Yong Loh, Yueh-Te Chu

  • 1Institute of Chemical Biology and Nanomedicine, College of Chemistry and Chemical Engineering , Hunan University , Changsha , Hunan 410082 , China.

Journal of the American Chemical Society
|November 15, 2018
PubMed
まとめ

研究者らは,生物のリアルタイム追跡のための新しい亜鉛イオン (Zn2+) ナノプローブを開発した. この高度なツールは,ゼブラフィッシュの胚と幼虫における亜鉛イオンの精密な空間時間的なモニタリングを可能にし,生物学的理解を深めます.

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Ions as Acids and Bases02:54

Ions as Acids and Bases

Salts with Acidic Ions
Salts are ionic compounds composed of cations and anions, either of which may be capable of undergoing an acid or base ionization reaction with water. Aqueous salt solutions, therefore, may be acidic, basic, or neutral, depending on the relative acid-base strengths of the salt’s constituent ions. For example, dissolving the ammonium chloride in water results in its dissociation, as described by the equation:
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Precipitation of Ions03:11

Precipitation of Ions

Predicting Precipitation
The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is:
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Alkali Metals03:06

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
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Bonding in Metals02:32

Bonding in Metals

Metallic bonds are formed between two metal atoms. A simplified model to describe metallic bonding has been developed by Paul Drüde called the “Electron Sea Model”. 
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Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
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Formation of Complex Ions03:45

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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