ファロイドンの高親和性アプタメアの選択と,二重モードLRET/色測定アプタセンサでの応用
Ali Raza1,2,3, Faizan Ul Haq1,2,3, Imran Mahmood Khan4
1State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu 214122, P.R.china.
Analytical chemistry
|February 13, 2026
まとめ
この研究では,毒性のキノコ化合物であるファロイドインを検出するための最初のDNAアプタマー (Apt-PHD) が開発されました. デュアルモードのアプタセンサは,食品の安全性を向上させるために,迅速で敏感な検出を提供します.
科学分野:
- アナリティカル・ケミストリー (Analytical Chemistry) とは
- バイオテクノロジー バイオテクノロジー
- 食品科学 食品科学について
背景:
- アマニタキノコのファロイドインは,潜在的な誤認により,食品安全に重大なリスクをもたらします.
- ファロイドインの検出方法は限られているが,アプタマーベースのシステムは報告されていない.
研究 の 目的:
- ファロイドイン検出のための高親近性DNAアプタマーを分離する.
- 繊細で信頼性の高いファロイドインの定量化のための多用途のデュアルモードアプタセンサを開発する.
主な方法:
- 15ラウンドのキャプチャー-SELEX.EXを使用してDNAアプタマー (Apt-PHD) の選択.
- ITC,SYBRグリーンIアッセイ,CDスペクトロスコーピー,分子ドッキングを用いたアプタマー-ターゲット相互作用の特徴化.
- アップコンバージョンナノ粒子とゴールドナノ粒子を利用した二次モードランタナイド共振エネルギー伝送 (LRET) /色測定アプタセンサの開発.
主要な成果:
- 高い親和性 (nM範囲の解離定数) と特異性を持つ孤立したApt-PHD.
- デュアルモードのアプタセンサは検出限界を低く達成しました (12.6 pg/mLはLRET,18.0 pg/mLは色測定).
- センサは,優れた再現性,菌毒素に対する選択性,および刺さったキノコのサンプルでの正確な回復を示しました.
結論:
- この研究は,ファロイジンに対する最初のアプタマーベースの認識システムを提示しています.
- 開発された二重モードの光学センサープラットフォームは,小分子毒素の迅速で信頼性の高い,フィールド展開可能な検出を可能にします.
- この技術は,毒素検出のための敏感なツールを提供することにより,食品安全監視を強化します.
関連する概念動画
Electron Affinity
43.8K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.8K
Affinity and Avidity
39.3K
Overview
39.3K
What is a Mode?
26.7K
The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
A data set with two modes is called bimodal. For example,...
26.7K
Ventilatory Modes
1.6K
Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
1.6K
Modes of Standing Waves - I
4.1K
A close look at earthquakes provides evidence for the conditions appropriate for resonance, standing waves, and constructive and destructive interference. A building may vibrate for several seconds with a driving frequency matching the building's natural frequency of vibration; this produces a resonance that results in one building collapsing while the neighboring buildings do not. Often, buildings of a certain height are devastated, while other taller buildings remain intact. This...
4.1K
Modes of Standing Waves: II
1.8K
The starting point for expressing the modes of standing waves is understanding the boundary conditions that the waves must follow. The boundary conditions are derived from the physical understanding of how the standing waves are sustained, that is, how the vibrating particles of the medium behave at the boundaries imposed on them.
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
For a tube open at one end and closed at the other filled with air, the modes are such that there is always an antinode at the open end and a node at the closed end....
1.8K


