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関連する概念動画

Assessing Immunological Synapse Topology through Live-Cell Imaging05:03

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This video demonstrates live-cell imaging of immunological synapse topology, investigating the interactions between T lymphocytes and epithelial cells carrying fluorescent antigens. Fluorescence microscopy reveals red cytoplasm displacement and yellow membrane rings in endothelial cells, indicating the formation of immunological...
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Here, we present a protocol to determine the orientation and topology of integral membrane proteins in living cells. This simple protocol relies on selective protease sensitivity of chimeras between the protein of interest and GFP.
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In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
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The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
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The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion.
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Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
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Updated: Jan 19, 2026

Determining Membrane Protein Topology Using Fluorescence Protease Protection FPP
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非ヘルミシアン型トポロジックライト・ステアリング

Han Zhao1, Xingdu Qiao2, Tianwei Wu2

  • 1Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.

Science (New York, N.Y.)
|September 14, 2019
PubMed
まとめ

研究者らは,非ヘルミシアン物理とトポロジック物理をインターフェイスすることによって,再構成可能な光学トポロジック断熱器で堅固な光方向性を実証している. これにより,高密度データ伝送のための光の経路のダイナミック制御が可能になります.

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科学分野:

  • 光学について
  • トポロジック物理学
  • 非ヘルミシアン物理学

背景:

  • フォトニック・トポロジカル・アイソレーターは 障害を防ぎ 光の輸送を可能にします これは高度なフォトニック・デバイスにとって 極めて重要です
  • 光路の柔軟な再構成は,高密度のルーティングとデータ容量の要求を満たすのに不可欠です.

研究 の 目的:

  • リコンフィギュア可能な非ヘルミシアン・ジャンクションで任意で堅固なライト・ステアリングを実証する.
  • トポロジカル光路のダイナミック制御をフォトニック・トポロジカル・アイソレーター内で可能にする.

主な方法:

  • 非ヘルミシアン物理とトポロジック物理の接点です.
  • リコンフィギュアブルな非ヘルミシアン・ジャンクションを利用して
  • ドメインのインターフェイスでキラルトポロジカル状態をガイドする.

主要な成果:

  • 任意で頑丈なライトステアリングを達成しました.
  • ゲイン・ロス・インターフェイスでキラル・トポロジック状態の伝播が実証された.
  • ボルク内の強固な光の伝送リンクのダイナミック制御を可能にします.

結論:

  • 開発された非ヘルミシアン制御のトポロジカル状態は,光子トポロジカル断熱器の足跡の完全な利用を可能にします.
  • このアプローチは,フォトニクスのルーティングにおける実用的なアプリケーションのために,トポロジック光経路の柔軟な再構成を容易にする.