VOC detection volatile organic compounds

What are the challenges in detecting volatile organic compounds (VOCs)?

Plants release a diverse array of phytogenic volatile organic compounds (VOCs) into the atmosphere, which can provide valuable insights into the physiological state of individual plants. These emitted VOCs encompass a wide range of compounds, including terpenoids, green leaf volatiles, and plant hormones. However, detecting and identifying the specific VOCs emitted by plants can be challenging due to the complex and time-varying chemical composition of the emissions. Additionally, no single VOC is exclusively associated with a specific stress factor, making it difficult to attribute the detected VOCs to a specific cause.

VOC detection is not only an important area of research in plant science, but it also has significant implications for environmental concern. Volatile organic compounds can have a detrimental impact on air quality and human health. Therefore, accurately identifying and quantifying VOCs is essential for monitoring and mitigating their effects.

To overcome these challenges, researchers have developed sensing arrays and specific sensors that collectively analyze a panel of VOCs or detect gases that are released under particular stress conditions. However, there are still obstacles to overcome in accurately identifying and quantifying VOCs in gas mixtures, and further advancements are needed in VOC detection technologies for plant disease diagnosis.

In the following sections, we will explore the advancements in VOCs monitoring technologies for plant disease diagnosis, as well as the ongoing research to address the challenges in detecting VOCs. By improving our understanding and capabilities in VOC detection, we can contribute to sustainable agriculture practices and better safeguard the environment.

Advancements in VOCs Monitoring Technologies for Plant Disease Diagnosis

Advancements in nanomaterials have led to the development of custom-made gas sensors for VOCs detection in plant disease diagnosis. These sensors offer exceptional sensitivity and selectivity, providing a potential solution to the challenges of VOC detection.

Previous studies have primarily focused on the use of commercially available devices, such as GC-MS and electronic noses, for diagnosing plant diseases. However, custom-made VOCs sensors have gained significant attention in recent research.

These custom-made sensors utilize various detection methods, including electrical sensors, gravimetric sensors, optical sensors, and wearable sensors, to detect and analyze VOCs emissions from plants. Each detection method has its own advantages and limitations.

In detecting plant diseases, the performance of these detection methods has been comprehensively explored, highlighting their effectiveness in identifying and quantifying specific VOCs associated with different plant stress factors.

The field of custom-made VOCs sensors for plant disease diagnosis is still emerging. Ongoing research is being conducted to further improve the efficacy and reliability of these monitoring technologies.

With advancements in VOCs monitoring technologies, the accurate and timely diagnosis of plant diseases can be achieved, leading to more efficient and sustainable agriculture practices.


Volatile organic compound (VOC) detection in plant disease diagnosis presents several challenges due to the complex and time-varying nature of VOC emissions and the lack of specific VOCs associated with particular stress factors. However, recent advancements in VOCs monitoring technologies, particularly in the development of custom-made sensors, offer promising solutions to overcome these challenges.

These custom-made sensors provide exceptional sensitivity and selectivity, enabling more accurate detection and analysis of the VOCs emitted by plants. With the ability to analyze a panel of VOCs or detect gases released under specific stress conditions, these sensors address the issue of associating the detected VOCs with a specific cause. This contributes to better identification and quantification of VOCs in gas mixtures.

While the field of custom-made VOCs sensors for plant disease diagnosis is still emerging, further research and advancements are expected to enhance the efficacy and reliability of these technologies. Ongoing efforts are focused on improving the performance of different detection methods, including electrical, gravimetric, optical, and wearable sensors, to optimize their abilities in detecting and analyzing VOC emissions from plants.

Investigating VOCs in plant disease diagnosis holds great potential for sustainable agriculture practices. By leveraging the advancements in VOC detection technologies, timely and accurate diagnosis of plant diseases can be achieved, leading to more effective disease management and improved crop productivity.

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