If the GWF isn’t monitoring the patient, then a detector is unnecessary.
God only knows what sort of detector the conspiracy theorists are
imagining. What do they want to report? What the patient eats? No
matter what information the GWF is after, they have to have a detector
to measure it.
Given that the chip is 10nm on a side, what can it measure?
Chemically, it’s a lost cause. There’s no room for any reagents at
all. So all analysis must be done via physical properties. Mass
spectrometry is out — that would only give the molecular weight of the
compound, anyway. To be even somewhat specific about which compound it
found it would have to be extremely precise, and, remember, it is
sampling such a small volume that isotopic variations would complicate
things enormously. Chromatography? Nope. That would require a hole
to be drilled through the chip, and a clock to time the passage of the
compound. A hole that small would clog easily (a virus would do it,
for one thing). The chip (again) is only 10nm from side to side, and
biological molecules can easily exceed 10nm in size — such a molecule
wouldn’t fit inside the chip. How would the chip handle that?
So, any chance to analyze chemicals in the body won’t work.
There’s no way to determine whether there’s a chemical imbalance
in the body since that would require remembering what chemicals have
been measured, and, it will turn out, there simply isn’t enough memory
to remember anything.
So, what’s left for the detector to do? It can only monitor
electromagnetic fields. A chip 10nm on a side will experience
collisions with molecules all the time, causing noise. It can’t
monitor anything in the visible spectrum, since inside the body it’s
dark. It can’t monitor infrared (heat) since, again, it can only see
what it’s near. The only electromagnetic waves that will pass through
even a centimeter of the body are of such high energy that they don’t
occur in the body naturally. Anything it detected would be
characteristic of the person’s environment, not characteristic of the
person.