幅広い分析物の電気化学検出のためのオン・エレクトロド結合によって構築された核酸ナノ構造
Subramaniam Somasundaram1, Christopher J Easley1
1Department of Chemistry and Biochemistry , Auburn University , Auburn , Alabama 36849 , United States.
Journal of the American Chemical Society
|July 2, 2019
まとめ
この研究は,費用対効果の高い,多用途の電気化学分析のための,新しい酵素触媒DNAナノ構造プローブを導入しています. このプラットフォームは,ヒトの血清のような複雑なサンプルで免疫抑制薬タクロリムスを含むバイオマーカーの定量化を簡素化します.
科学分野:
- 生物医学工学
- 分析化学
- ナノテクノロジー
背景:
- 効果的な診療所での臨床試験には,経済的でシンプルで一般化可能な方法が必要です.
- 既存の電気化学ベースのDNAセンサーは,探査コストと多様なバイオマーカーの広範なマルチ結合の必要性で課題に直面しています.
- 電気化学的DNAセンサーの適用範囲を広げるため,多用途で簡素化された探査装置の構築戦略が必要である.
研究 の 目的:
- 電子表面の酵素触媒構造を用いた多用途のDNAナノ構造探査機を開発する.
- 電気化学的な測定で複雑な多重結合スキームを回避するために.
- タンパク質や小分子を含む幅広いバイオマーカーの定量化におけるプラットフォームの有効性を実証する.
主な方法:
- 酵素触媒による探査装置が,電極表面に直接付けられている.
- 汎用的なDNAナノ構造探査機の開発
- ストレプタヴィジン,抗ディゴキシジニン,抗タクロリムス,バイオチン,ディゴキシジニン,およびタクロリムスの電気化学的定量化による検証
- ほんの少し薄められたヒトの血清で検査する.
主要な成果:
- 酵素触媒された表面構造を介して,新しい多用途のDNAナノ構造のプローブが成功裏に作成されました.
- このプラットフォームは,単一のプローブタイプを使用して,タンパク質や小分子を含む多様な分析物質の定量化を可能にしました.
- タクロリムスの治療指数範囲内での直接電気化学的定量化が初めて達成されました.
- 検出器は,最小限の希釈されたヒト血清で安定性と感受性を示した.
結論:
- 酵素触媒による探査構造は,電気化学的なDNAセンサーのための簡素化され,多用途な経路を提供します.
- このアプローチは,探査コストと一般化問題に対処し,広範なバイオマーカーの定量化を可能にします.
- 開発されたプラットフォームは,タクロリムスの治療薬モニタリングを含む,ケアポイントでのアプリケーションの有望さを示しています.
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