Noble metal nanomaterials are widely used in analytical chemistry due to their unique physical and chemical properties. However, the instability of nanoparticles in aqueous solutions limits the development of noble metal nanomaterials. Hydrogels acting as nanoparticle carriers can solve this problem well. Due to the excellent mechanical properties, good biocompatibility and ease of modification, hydrogels can improve the properties of nanomaterials and provide new application advantages. Therefore, more and more researches focus on the development of noble metal nanoparticles and hydrogel composite materials. Here, we reviewed the preparation principles and application progress of various types of noble metal nanoparticles and hydrogel composite materials in the past five years, and discussed the application advantages of composite materials and their further research orientations.

贵金属纳米材料由于其独特的物理和化学特性而被广泛用于分析化学。然而，纳米粒子在水溶液中的不稳定性限制了贵金属纳米材料的发展。充当纳米颗粒载体的水凝胶可以很好地解决这个问题。由于其优异的机械性能，良好的生物相容性和易改性性，水凝胶可改善纳米材料的性能并提供新的应用优势。因此，越来越多的研究集中在贵金属纳米颗粒和水凝胶复合材料的开发上。在这里，我们回顾了过去五年来各种类型的贵金属纳米粒子和水凝胶复合材料的制备原理和应用进展，