Electrochemical sensing has gained significant attention for its ability to detect and monitor various substances with high sensitivity, selectivity, and rapid response. Recent advancements in electrode materials, such as two-dimensional (2D) materials like graphene, MXene, and metal-organic frameworks (MOFs), have enhanced the performance of electrochemical sensors. These materials offer improved sensitivity, detection limits, and response times, making them suitable for wearable and point-of-care applications. Electrochemical sensors are also being used in various fields, including environmental monitoring, healthcare, and food safety, for the detection of heavy metals, pesticides, antibiotics, and other analytes. The use of nanomaterials and advanced fabrication techniques has enabled the development of portable and cost-effective sensors. Despite these advancements, challenges remain in terms of cost, stability, and reproducibility. However, ongoing research is focused on improving the performance of electrochemical sensors for real-time, in situ monitoring. The integration of electrochemical sensors with wearable and flexible devices is also being explored to enable continuous monitoring of health parameters such as glucose levels and drug concentrations. Overall, electrochemical sensing continues to be a promising technology for various applications due to its advantages in sensitivity, selectivity, and portability.Electrochemical sensing has gained significant attention for its ability to detect and monitor various substances with high sensitivity, selectivity, and rapid response. Recent advancements in electrode materials, such as two-dimensional (2D) materials like graphene, MXene, and metal-organic frameworks (MOFs), have enhanced the performance of electrochemical sensors. These materials offer improved sensitivity, detection limits, and response times, making them suitable for wearable and point-of-care applications. Electrochemical sensors are also being used in various fields, including environmental monitoring, healthcare, and food safety, for the detection of heavy metals, pesticides, antibiotics, and other analytes. The use of nanomaterials and advanced fabrication techniques has enabled the development of portable and cost-effective sensors. Despite these advancements, challenges remain in terms of cost, stability, and reproducibility. However, ongoing research is focused on improving the performance of electrochemical sensors for real-time, in situ monitoring. The integration of electrochemical sensors with wearable and flexible devices is also being explored to enable continuous monitoring of health parameters such as glucose levels and drug concentrations. Overall, electrochemical sensing continues to be a promising technology for various applications due to its advantages in sensitivity, selectivity, and portability.