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Colorimetric Nanofibers as Optical Sensors

机译：比色纳米纤维作为光学传感器

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Sensors play a major role in many applications today, ranging from biomedicine to safety equipment, where they detect and warn us about changes in the environment. Nanofibers, characterized by high porosity, flexibility, and a large specific surface area, are the ideal material for ultrasensitive, fastresponding, and user-friendly sensor design. Indeed, a large specific surface area increases the sensitivity and response time of the sensor as the contact area with the analyte is enlarged. Thanks to the flexibility of membranes, nanofibrous sensors cannot only be applied in high-end analyte detection, but also in personal, daily use. Many different nanofibrous sensors have already been designed; albeit, the most straightforward and easiest-to-interpret sensor response is a visual change in color, which is of particular interest in the case of warning signals. Recently, many researchers have focused on the design of so-called colorimetric nanofibers, which typically involve the incorporation of a colorimetric functionality into the nanofibrous matrix. Many different strategies have been used and explored for colorimetric nanofibrous sensor design, which are outlined in this feature article. The many examples and applications demonstrate the value of colorimetric nanofibers for advanced optical sensor design, and could provide directions for future research in this area.
机译：传感器在当今许多应用中都扮演着重要角色，从生物医学到安全设备，它们都会检测并警告我们有关环境变化的信息。纳米纤维具有高孔隙率，柔韧性和大比表面积的特点，是超灵敏，快速响应和用户友好型传感器设计的理想材料。实际上，随着与分析物的接触面积增大，大的比表面积会增加传感器的灵敏度和响应时间。由于膜的灵活性，纳米纤维传感器不仅可以应用于高端分析物检测，而且可以应用于个人日常使用。已经设计了许多不同的纳米纤维传感器。尽管，最直接，最容易解释的传感器响应是颜色的视觉变化，这对于警告信号尤为重要。近来，许多研究者集中于所谓的比色纳米纤维的设计，该比色纳米纤维通常涉及将比色功能性结合到纳米纤维基质中。比色纳米纤维传感器设计已使用和探索了许多不同的策略，本专题文章对此进行了概述。许多示例和应用证明了比色纳米纤维在先进的光学传感器设计中的价值，并可以为该领域的未来研究提供指导。

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