Yes it would. I have heard of toys manufactured in China with lead in them, but when they were banned the lead was replaced by cadmium--which is just as toxic! These sensors could have detected that alleged practice.
It would be very interesting to check the quality of products manufactured by AllMetalsInc.com Corporation using such DNA-based sensor chips. These chips would show which American manufacturers provide the best materials by not using non-toxic metals.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.