Nanosheets, a classification of two-dimensional nanomaterials with extremely high surface-to-volume ratios, have attracted great attention in various fields with vast applications. Owing to their specific structures, nanosheets possess prominent sensing properties including catalyst, electrical properties, etc., together with unique physical properties like remarkable adhesion, stretchability, and flexibility. Therefore, nanosheet materials could play a significant role in the field of wearable biohazard gas sensors which is one of the rising research topics in the field of biosensors. In this review, the state-of-the-art development of wearable biohazard gas sensors based on nanosheet materials is discussed and classified into four categories including wearable biohazard gas sensors based on nanosheets towards the monitoring of NO₂, NH₃, other gases, and multiple gases. Finally, the research trend in wearable biohazard gas sensors based on nanosheets is prospected.

纳米片，二维的分类纳米材料具有极高的比表面积，在各个领域受到了广泛的关注和广泛的应用。由于其特定的结构，纳米片具有突出的传感性能，包括催化剂、电学性能等，以及独特的物理性能，如显着的粘附性、拉伸性和柔韧性。因此，纳米片材料可以在可穿戴生物危害气体传感器领域发挥重要作用，这是生物传感器领域新兴的研究课题之一。在这篇综述中，讨论了基于纳米片材料的可穿戴生物危害气体传感器的最新发展，并将其分为四类，包括基于纳米片的可穿戴生物危害气体传感器，用于监测NO 2 _、 NH ₃、其他气体和多种气体。最后对基于纳米片的可穿戴生物危害气体传感器的研究趋势进行了展望。