基于光子晶体的结构色隐形眼镜的构建及应用

光子晶体(photonic crystal, PC)是由不同折射率的介质周期性排列而成的微结构,因独特的对光波传播方式的调控能力,被广泛应用于能源转换、传感、显示和防伪领域。用于视力矫正的隐形眼镜具有长期佩戴安全性,为眼部生理参数(如葡萄糖、眼内压(IOP)、角膜温度和pH值等)的无创连续监测和药物递送提供了可穿戴平台。本文概述了光子晶体及隐形眼镜,主要论述了基于光子晶体的结构色隐形眼镜的构建策略及其在作为眼部传感和紫外防护方面的应用,最后对存在问题和发展前景进行了展望。

Construction and Application of Structural Color Contact Lenses Based on Photonic Crystals

Photonic crystals (PCs), consisting of periodic arrays with different refractive indices, have been widely used in the fields of energy conversion, sensing, display and anti-counterfeiting due to their attributes of regulating the transmission of lightwaves. Contact lenses (CLs), traditionally used for vision correction, show long-term wearing safety, thus providing a wearable platform for continuous ocular physiological parameters (glucose, intraocular pressure (IOP), corneal temperature, and pH value etc.) monitoring and drug delivery. In this review, PCs and CLs are introduced, and an overview of recent advances of construction strategy of structural color CLs based on PCs and their applications as ophthalmic sensors and UV protection are illustrated. Finally, the existing problems and development trends are forecasted.