A new spirobenzopyran derivative (SPNH) was designed and synthesized which was applied in simultaneous colorimetric and NIR fluorescence detections for Cr3+. This spirobenzopyran receptor is normally colorless in aqueous organic media but the formation of merocyanine occurs by Cr3+ showing a yellow color. Here the formation of yellow color in UV-vis spectra and strong NIR fluorescence emission at 675 nm makes SPNH a good sensor for Cr3+ ion. It is also found to be useful in cell imaging and in construction of logic gate. It shows INHIBIT gate in fluorescence and OR gate in absorption. To the best of our knowledge, this is the first report of NIR fluorescence emission of a spirobenzopyran derivative by Cr3+ and its application to cell-biology and also in the logic gate.
研究人员设计并合成了一种新的螺并
吡喃衍
生物(
SPNH),并将其应用于同时比色法和近红外荧光法检测 Cr3+。这种螺
苯并呋喃受体在
水性有机介质中通常是无色的,但在 Cr3+ 的作用下会形成美拉德菁,呈现黄色。在这里,紫外-可见光谱中形成的黄色和 675 纳米波长处的强近红外荧光发射使
SPNH 成为 Cr3+ 离子的良好传感器。它还可用于细胞成像和逻辑门的构建。它在荧光中显示 INHI
BIT 门,在吸收中显示 OR 门。据我们所知,这是首次报道螺
苯并呋喃衍
生物在 Cr3+ 作用下的近红外荧光发射及其在细胞
生物学和逻辑门中的应用。