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Abstract
Plant nanobionics aims to embed non-native functions to plants by interfacing them with specifically designed nanoparticles. Here, we demonstrate that living spinach plants (Spinacia oleracea) can be engineered to serve as self-powered pre-concentrators and autosamplers of analytes in ambient groundwater and as infrared communication platforms that can send information to a smartphone.
The plants employ a pair of near-infrared fluorescent nanosensors-single-walled carbon nanotubes (SWCNTs) conjugated to the peptide Bombolitin II to recognize nitroaromatics via infrared fluorescent emission, and polyvinyl-alcohol functionalized SWCNTs that act as an invariant reference signal-embedded within the plant leaf mesophyll.
As contaminant nitroaromatics are transported up the roots and stem into leaf tissues, they accumulate in the mesophyll, resulting in relative changes in emission intensity. The real-time monitoring of embedded SWCNT sensors also allows residence times in the roots, stems and leaves to be estimated, calculated to be 8.3 min (combined residence times of root and stem) and 1.9 min mm(-1) leaf, respectively. These results demonstrate the ability of living, wild-type plants to function as chemical monitors of groundwater and communication devices to external electronics at standoff distances.
originally posted by: bigfatfurrytexan
a reply to: dug88
Intriguing....but the last thing i want in animals food supply are needless nanos. Worst case scenario, grey good. Most likely scenario: toxic effects.
originally posted by: Silcone Synapse
a reply to: dug88
Of course there is probably a big downside if this tech gets out into the wild and starts altering other plants.
It could all get a bit Day of the Triffids.
originally posted by: StratosFear
I recall reading something from this site years back about how the mitochondrial network spans the globe underground and is both ancient and sentient. Imagine being able to communicate with it and what it might have to say.