Biosensor technology represents a significant breakthrough in disease diagnosis and the monitoring of patients' health status. This technology relies on small, advanced devices capable of detecting and analyzing biochemical or physical changes in the body in real time, enabling accurate and immediate monitoring of vital signs.<br /><br />Biosensors are used in a wide range of applications, from measuring blood glucose levels in diabetic patients to monitoring heart rate, oxygen saturation, and body temperature. Many of these sensors have been integrated into wearable devices such as smartwatches, providing both patients and physicians with direct data that aid in decision-making.<br /><br />In clinical settings, biosensor devices are employed during surgical procedures, chemotherapy, and sometimes in intensive care units to provide precise and continuous monitoring. Advanced systems have also been developed to detect biomarkers that indicate the presence of serious diseases such as cancer, contributing to early diagnosis.<br /><br />This technology is characterized by being non-invasive, relatively low-cost, and easy to use, making it ideal for home healthcare. However, challenges related to sensor sensitivity, accuracy, and the protection of the collected data remain areas of ongoing concern.<br /><br />The integration of biosensor technology into modern medicine reflects a shift toward more personalized and effective healthcare and forms a key component of the transformation toward digital medicine and self-monitoring.<br /><br />