Department of Chemistry, University of Bath, Bath BA2 7AY, UK.
Molecules. 2021 Jan 12;26(2):353. doi: 10.3390/molecules26020353.
Azulene is a hydrocarbon isomer of naphthalene known for its unusual colour and fluorescence properties. Through the harnessing of these properties, the literature has been enriched with a series of chemical sensors and dosimeters with distinct colorimetric and fluorescence responses. This review focuses specifically on the latter of these phenomena. The review is subdivided into two sections. Section one discusses turn-on fluorescent sensors employing azulene, for which the literature is dominated by examples of the unusual phenomenon of azulene protonation-dependent fluorescence. Section two focuses on fluorescent azulenes that have been used in the context of biological sensing and imaging. To aid the reader, the azulene skeleton is highlighted in blue in each compound.
薁是萘的一种烃类异构体，以其不寻常的颜色和荧光特性而闻名。通过利用这些特性，文献中丰富了一系列具有独特比色和荧光响应的化学传感器和剂量计。本篇综述特别关注了后一种现象。该综述分为两个部分。第一部分讨论了采用薁的荧光开启传感器，其中文献主要以薁质子化依赖性荧光这一不寻常现象的例子为主。第二部分重点介绍了在生物传感和成像中应用的荧光薁。为了方便读者，每个化合物中的薁骨架都用蓝色突出显示。
