Chemical/gas sensors are playing and will play a crucial role in smart building, smart houses, environmental monitoring, food quality monitoring and in the customization of personalized medicine, as they allow a constant data collection to monitor all the parameters needed for a preventive intervention related to health and wealth of human beings together with the environment. Nanowires (NWs) and NW-based heterostructures thanks to their peculiar properties such as high crystallinity, flexibility, conductivity, and optical activity are key components of future sensing devices. Notwithstanding a rapid growth in smart, portable, and wearable chemical sensing devices, the development of reliable devices for the detection of chemicals, gases, and vapors is still needed together with the possibility to correlate the sensing data with health and wealth of the analyzed system: food, environment, and human beings. In this short review, I am going to report few recent studies and achievements devoted to increase the functional performances of chemical sensing devices, keeping the focus on materials, sensing transduction, and data extraction/evaluation.

化学/气体传感器正在发挥作用，并将在智能建筑，智能房屋，环境监测，食品质量监测和个性化药物定制中发挥关键作用，因为它们允许不断收集数据以监测预防性干预所需的所有参数与人类的健康和财富以及环境有关。纳米线（NWs）和基于NW的异质结构由于其独特的特性（例如高结晶度，柔性，导电性和光学活性）而成为未来传感设备的关键组件。尽管智能，便携式和可穿戴式化学传感设备迅速增长，但仍可以开发出可靠的设备来检测化学物质，气体，仍然需要蒸气，并需要将传感数据与被分析系统的健康和财富相关联：食物，环境和人类。在这篇简短的评论中，我将报告一些最近的研究和成就，这些研究和成就致力于提高化学传感设备的功能性能，并将重点放在材料，传感转导和数据提取/评估上。