This review summarizes information about the new gas chemical nanosensors with zinc oxide-based sensing elements. The available devices of this type are classified according to specific features of their sensing elements. The resulting classification of nanosensors comprises three groups: group 1, uniting devices with coatings of only zinc oxide; group 2, including nanosensors coated with zinc oxide and an outer layer of another material; and group 3, including devices coated with a composite zinc oxide-based material.

中文翻译：

---

具有基于氧化锌的传感元件的气体化学纳米传感器

这篇综述总结了有关基于氧化锌传感元件的新型气体化学纳米传感器的信息。这种类型的可用设备根据其感应元件的特定功能进行分类。纳米传感器的最终分类包括三组：第1组，仅带有氧化锌涂层的组合装置；第3组，第2组。第2组，包括涂有氧化锌和另一种材料外层的纳米传感器；第3组，包括涂有复合氧化锌基材料的器件。