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関連する概念動画

The Phosphorus Cycle01:21

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
Phosphorylation01:02

Phosphorylation

The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
Phosphorylation01:02

Phosphorylation

The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
Phosphoinositides and PIPs01:42

Phosphoinositides and PIPs

Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Phosphodiester Linkages01:01

Phosphodiester Linkages

Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...

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関連する実験動画

Updated: Jun 15, 2026

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
08:21

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

また,は"写本"にもなり得ます.

Marlena P Washington1, Vittal B Gudimetla, Feng L Laughlin

  • 1Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, USA.

Journal of the American Chemical Society
|March 19, 2010
PubMed
まとめ

研究者らは,青い光を示す新しいベンゾキサフォスフォールおよびベンゾビゾキサフォスフォール化合物を合成した. これらのリンを含有する材料は,独自のP-Cπ結合により,高度な結合有機電子の潜在能力を示しています.

科学分野:

  • 有機化学 オーガニック・ケミストリー
  • マテリアルサイエンス 材料科学
  • フォトケミストリー フォトケミストリー

背景:

  • ベンゾキサフォスフォールは,材料科学における潜在的な応用を持つヘテロサイクル化合物です.
  • 調節可能な光物理的性質を持つ新しい結合有機分子の開発は,研究の活発な分野です.

研究 の 目的:

  • 新しいベンゾキサホスフォールおよびベンゾビゾキサホスフォール誘導体を合成する.
  • 彼らの光発光特性,特に青色光性を調査するために.
  • これらの新しいリン含有化合物の構造と結合を特徴づける.

主な方法:

  • 2,5-ディフォスフィノヒドロキノン前駆体を使用したベンゾキサフォスホルとベンゾビゾキサフォスホルの化学合成.
  • 構造的決定のためのX線結晶学を含む合成化合物の完全な特徴付け.
  • 光効率を定量化するための光発光量子収量測定.

主要な成果:

  • 新型ベンゾキサホスフォールおよびベンゾビゾキサホスフォール化合物の合成が成功しました.
  • 合成されたベンゾビゾキサホスフォールにおける青色光の実証.
  • 2,6-テルト-ブチルベンゾ[1,2-d;4,5-d\]ビソキサフォスホールの構造の解明.

さらに関連する動画

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Published on: November 22, 2016

関連する実験動画

Last Updated: Jun 15, 2026

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
08:21

Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method

Published on: May 18, 2018

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)

Published on: November 22, 2016

  • シリーズの光発光量子産出率の決定.

    • 結論:

    • 2,5-ディフォスフィノヒドロキノンから派生した新しいベンゾビソキサフォールは,青い光を示します.
    • これらの化合物はP-C p-p pi結合を有し,結合材料に適しています.
    • リン原子は結合に参加することができ,これらの材料が他の有機結合分子の性質を模倣することを可能にします.