3 ms·
Lazy layman's guess, posted to provoke more knowledgeable answers: expensive combined with very low durability. I just can't imagine semiconductor surface doped
by usrusr 6y ago
Lazy layman's guess, posted to provoke more knowledgeable answers: expensive combined with very low durability. I just can't imagine semiconductor surface doped with complex proteins to last very long when exposed to arbitrary samples.
If I'd wanted to have this sensor in a near-future hard sci-fi I'd world-build it the sensor to last a day at most to keep it convincing. Comes in a cartridge of 16, each day the machine unseals a new sensor then you need to pop in a new disk.
- OJFord 6y agoI don't think that's the case - when I was looking into it prior to posting the above Ask HN, I saw a video (a bit marketing-y, but interesting) for a company that was deploying pH sensing ones in their packaged product dotted around in the sea (harbour or fishery or something) in buoys for some reason or other. It didn't seem like it was a consumable that would need continually replacing, more like a 'deploy and forget' humidity or temperature sensor (as in thermistor, I don't know if you can also get temp FETs).