Which of the following best describes the application of biosensors?

Biosensors are highly versatile devices that integrate biological components with physicochemical detectors to detect various substances, often translating biological responses into electrical signals. While they are indeed used in environmental monitoring, such as detecting pollutants or monitoring water quality, their utility extends far beyond that singular application.

These sensors can be employed in many fields, including healthcare for medical diagnoses, food safety for detecting pathogens or toxins, and industrial applications for monitoring processes and ensuring quality control. This wide range of applications underscores the flexibility and importance of biosensors in various sectors.

The option stating that biosensors are designed specifically for environmental monitoring correctly captures one significant aspect of their use, reflecting their capability to play a crucial role in addressing environmental concerns and regulatory requirements. However, it is essential to note that their functions are not limited to this area alone.