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単分子画像の拡張のためのNi2+によるCy3光保護:新しい技術のための古いトリック
Viktorija Glembockyte1, Richard Lincoln, Gonzalo Cosa
1Department of Chemistry and Center for Self Assembled Chemical Structures (CSACS/CRMAA), McGill University , 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.
Journal of the American Chemical Society
|January 17, 2015
まとめ
ニッケルイオン (Ni2+) は,単分子画像における一般的なCy3フッ素酸化物の光安定性を高めます. これは物理的にトリプル興奮状態を消し,光白化を減らし,光顕微鏡でのデータ取得を改善します.
科学分野:
- バイオフィジックス 生物物理学
- 化学物理 化学物理
- スペクトロスコーピーは,スペクトロスコーピーを用います.
背景:
- Reporter fluorophoreの光安定性は,単分子光成像において極めて重要です.
- フォトブレーチングは情報獲得を制限し,トリプル興奮状態クエンチャーはこれを最小限に抑えます.
- 瞬きとシングレット酸素感受性を最小限に抑えることが不可欠です.
研究 の 目的:
- ニッケルイオン (Ni2+) を,Cy3.3のトリプル興奮状態の物理的な消火剤として調査する.
- シングル分子研究におけるCy3の光安定性の改善におけるNi2+の有効性を評価する.
主な方法:
- 単一分子光の研究.
- 機械学的研究を集約する.
- レーザーフラッシュ光分解.
- 時間の解像度を持つ光スペクトロスコーピー.
主要な成果:
- Ni(2+) は,Cy3.3のトリプル興奮状態を効果的に消し去ります.
- Ni (((2+) は,化学的に無効な物理的な quenching 経路を提供します.
- この方法は,光漂白を減らし,Cy3.3の光安定性を改善します.
結論:
- Ni(2+) は,単分子光成像におけるCy3の光安定性を高めるための貴重なツールです.
- Ni ((2+) の使用により,フォト漂白の前により多くの情報を取得することができます.
- この発見は,科学研究におけるCy3の至る所に存在する使用にとって重要である.
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