Senior author of the paper and microbiologist Derek Lovley adds that the "very stable" nanowires last a long time, the sensor functions consistently and robustly after months of use, and works so well "it is remarkable."
"These protein nanowires," says Yao, "are always amazing me. This new use is in a completely different area than we had worked in before."
Previously, the researchers reported using protein nanowires to harvest energy from humidity and applying them as memristors for biological computing.
"This work is the first proof-of-concept for the nanowire sensor," says Lovley. "Once we get back in the lab, we'll develop sensors for other compounds. We are working on tuning them for an array of other compounds."
For more, see " Bioelectronic protein nanowire sensors for ammonia detection"
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