The need for environmental, food and biomedical sensing and monitoring is constantly growing. The ideal technological solution for this would be small, low-cost and autonomous devices that report findings continuously or on demand and with minimal human intervention.
This kind of sensing and monitoring device should be able to detect a multitude of chemical and/or biological threats, and describe complex environments to a data collection and analysis centre. In principle, biosensors, and specifically arrayed biosensors (microarrays or biochips), could perform such tasks.
Further details: Novel biosensors for optimised food, biomedical and environmental analysis