Description: A molecular sensor is a device designed to detect and measure the presence of specific molecules in a sample. These sensors are fundamental in the realm of IoT (Internet of Things) sensors, as they enable real-time data collection on the chemical composition of various environments. Their operation is based on chemical and physical principles that allow for the identification of interactions between target molecules and the sensor’s sensitive material. Molecular sensors can be highly selective, meaning they can distinguish between different types of molecules, even in complex mixtures. This makes them extremely useful in applications requiring precise monitoring, such as detecting pollutants in air or water, food analysis, and health monitoring. Furthermore, their integration with IoT technologies allows for data transmission to cloud platforms, facilitating analysis and data-driven decision-making in real-time. The miniaturization and improved sensitivity of these devices have expanded their use across various industries, from medicine to agriculture, making them essential tools for technological innovation and sustainability.
Uses: Molecular sensors are used in a variety of applications, including the detection of toxic gases, monitoring air and water quality, and in the food industry to ensure product safety. They are also essential in the medical field, where they are employed for disease diagnosis by detecting specific biomarkers in bodily fluids. In agriculture, these sensors help monitor soil and plant health, allowing for more efficient resource management.
Examples: An example of a molecular sensor is the MQ-7 gas sensor, which is used to detect carbon monoxide in the air. Another example is the use of biosensors in medical diagnostic tests, such as those that detect glucose in blood for diabetes monitoring. In agriculture, molecular sensors are used to measure nitrate concentration in soil, helping to optimize fertilizer use.
