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A water-soluble pillar[5]arene-based chemosensor for highly selective and sensitive fluorescence detection of L-methionine

机译:水溶性支柱[5]芳烃基化学传感器,用于L-蛋氨酸的高选择性和灵敏荧光检测

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L-Methionine (L-Met) is an essential amino acid for the human body. The detection of L-Met in water solution is very important. Herein, we report an efficient approach for the fluorescent detection of L-Met with high selectivity and sensitivity in water using a cationic pillar[5]arene-based chemosensor (AWP5). When various L-amino acids are added to the AWP5 water solution, only L-Met can induce fluorescence in AWP5 at λem = 520 nm, showing dramatic enhancement; thus, other amino acid do not interfere in the L-Met recognition process. AWP5 also shows high sensitivity for L-Met in water, with the lowest detection limit of AWP5 for L-Met being 5.46 × 10?7 mol L?1.
机译: L -蛋氨酸( L -Met)是人体必需的氨基酸。水溶液中 L -Met的检测非常重要。本文中,我们报告了一种高效的方法,该方法使用阳离子柱[5]芳烃基化学传感器(AWP5)在水中进行高选择性和高灵敏度的 L -Met荧光检测。将各种 L -氨基酸添加到AWP5水溶液中时,只有 L -Met可以在λ < sub> em = 520 nm,显示出显着增强;因此,其他氨基酸不会干扰 L -Met识别过程。 AWP5对水中的 L -Met也显示出高灵敏度,对于 L -Met的AWP5最低检测限为5.46×10 ?7 < / sup> mol L ?1

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