Abstract Colloidal photonic crystal (PC) sensors have been well developed due to their unique advantages in preparation and functionalization, and have been applied into diverse sensing systems. Recently, many breakthroughs about new-type colloidal PC sensors with fast respond speed, high sensitivity and excellent selectivity have been achieved. In this review, we summarize the recent advances of colloidal PC sensors from aspects of materials, structures, and analysis methods, to exhibit the diverse developing strategies. Firstly, an overview of colloidal PC sensors composed of new responsive materials is presented. Next, the unique structures are systematically summarized according to their scale increasing from nanoscale to macroscale, including the colloidal nanoparticles with novel structures and morphologies, the micro-sized PC units, and the integrated PC devices. Then, two series of new analysis methods, cross-reactive analysis based on PC sensors and time/spatial resolved reflection spectra analysis, are highlighted and discussed in details because they can greatly improve the selectivity of recognitions. Finally, a summary and some perspectives on several development directions in this attractive research field are presented.

中文翻译：

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胶体光子晶体传感器的最新进展：材料、结构和分析方法

摘要 胶体光子晶体（PC）传感器由于其在制备和功能化方面的独特优势而得到了很好的发展，并已应用于各种传感系统。近年来，响应速度快、灵敏度高、选择性好的新型胶体PC传感器取得多项突破。在这篇综述中，我们从材料、结构和分析方法等方面总结了胶体 PC 传感器的最新进展，以展示其多样化的发展策略。首先，概述了由新型响应材料组成的胶体 PC 传感器。接下来，根据其从纳米尺度到宏观尺度的尺度，系统地总结了独特的结构，包括具有新颖结构和形态的胶体纳米粒子，微米级的PC单元，和集成的 PC 设备。然后重点讨论了基于PC传感器的交叉反应分析和时间/空间分辨反射光谱分析两大系列新的分析方法，因为它们可以大大提高识别的选择性。最后，对这个有吸引力的研究领域的几个发展方向进行了总结和一些展望。