[LibWhacker]

Wow! The imagination runs wild. We’re not going to recognize the world of tomorrow.

[backwoods-engineer]

I’m an RF engineer, and I’ve used spray-on RF shielding. If the resistance of the material is low enough, I don’t see why there couldn’t be a spray-on antenna. You don’t even have to connect to it directly; you could capacitively couple to it from the circuit board itself.

[adorno]

Just imagine. You could take your antenna with you everywhere. Wonder if it works underwater or could be washed away during bathing.

[bigbob]

Conductive inks have only been around for half a century...and companies are in business making antennas using them:
https://butlertechnologies.com/printed-antennas/

[ProtectOurFreedom]

Fascinating...I'd never even heard of MXenes before. According to Wiki:

MXenes are "a class of two-dimensional inorganic compounds. These materials consist of few atoms thick layers of transition metal carbides, nitrides, or carbonitrides. First described in 2011, MXenes combine metallic conductivity of transition metal carbides and hydrophilic nature because of their hydroxyl or oxygen terminated surfaces....

As-synthesized MXenes prepared via Hydrofluoric (HF) acid etching have an accordion-like morphology, which can be referred to as a multi-layer MXene (ML-MXene), or a few-layer MXene (FL-MXene) when there are fewer than five layers....

MXenes, as conductive layered materials with tunable surface terminations, have been shown to be promising for energy storage applications (Li-ion batteries and supercapacitors), composites, photocatalysis, water purification and gas sensors...

In addition to the high power capabilities of MXenes, each MXene has a different active voltage window, which could allow their use as cathodes or anodes in batteries...

MXenes also exhibit promising performances for sodium-based energy storage devices. Na+ should diffuse rapidly on MXene surfaces, which is favorable for fast charging/discharging.

There was an article posted recently about using sodium batteries to replace Lithium Ion. Sodium is the sixth most abundant element in the Earth's crust and breakthroughs on sodium batteries could have a huge impact by removing the lithium constraint.

Fascinating that these researchers have found a whole new class of applications (antennas) and have done so using additive methods (printing) rather than subtractive (HF etching).

Thanks for posting!

[montag813]

Great material for spies of all kinds

[moovova]

No thank you. My duct tape antenna works just fine.

[eartick]

I worked on mid range computers that put man on the moon. Core memory, TTL Logic and such. The progress of technology since the 80s has been changing exponentially. When I left the computer world, I left working on servers with terabytes of memory and TTL logic that used to be housed on a 2'x2' board now resided on a surface mount chip the size of a postage stamp.

Yep, no place for old men.