Putting on my electromechanical engineering hat...
It isn’t possible to deliver that complex of a microscopic structure through a needle of the gauge used to deliver the shots.
For anything to produce an electromagnetic field, there has to be a power source, transmitter circuit, and an antenna.
And those components are most definitely NOT plastic-like; plastic is not conductive.
So, it’s not credible.
Revised by, ... Theodore E. VanKampen, in Reference Data for Engineers (Ninth Edition), 2002
Conductive Plastic
Conductive plastic is an ink formulated from carbon, other proprietary materials, a resin, and solvent. It is applied to a substrate by screening, dipping, or comolding. The low curing temperature (150 to 300 °C) of the ink allows it to be applied to a wide variety of substrates.
Conductive-plastic potentiometers are most notable for their high rotational life, and they are used most frequently as machine-operated servo-controls. Another desirable feature is their low noise or output smoothness.
Resistance ranges in sheet resistivities of up to 50 000 Ω/□ are available with temperature coefficients of ±500 ppm/°C. As with cermets, ultimate resistance values are limited by substrate geometry.
Typical thermally formed plastics usually require embedded materials or paint to provide an EMC coating, but not all plastics do.
Thank you for that assessment.
I think that’s why “plastic-like” was in quotes.