It suggests using a ferromagnetic ink, which includes compounds like iron or iron oxide, for the tattoo.
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The researchers first created separate nanoparticles of two materials, lead selenide and magnetic iron oxide, with precise dimensions.
Thermite is a substance that can literally melt steel and is made up of iron oxide and aluminium.
That would change the way the magnetic field of the iron oxide interacts with the semiconducting behaviour of the lead selenide.
As the bacteria produced oxygen, the two compounds reacted to form iron oxide, which precipitated onto the seafloor in great layers of rust.
"Typically the concentrations are small in red mud and what is present is tightly bound to the particles of iron oxide, " he says.
MagForce Nanotechnologies, based in Berlin, has conducted three clinical trials of anti-cancer nanoparticles made from iron oxide and is now running another five.
In some of the packing arrangements, the quantum dots are huddled together, and thus are less susceptible to the magnetic field from the iron oxide nanoparticles.
Iron oxide is used in coatings for magnetic recording materials.
Even so, he pointed out that some nanoparticles potentially serving as the basis for savvy devices of the future are already in use, including magnetic iron oxide particles used for advanced body imaging.
To get the material to assemble properly, all of the molecules had to be a specific size--11 nanometers for the iron oxide particles, each of which is 60, 000 atoms across, and five nanometers across for the lead selenium quantum dots, each of which contains 3, 000 atoms.
Also, if you ever meet iron-oxide or hematite, buy them a drink, as it's their presence in the soil that gave us such a good preservation.
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Rust is the metal (Fe for iron) turning to the oxide (Fe2O3 normally for iron although there are other oxides).
In 2010 a team of researchers from Washington State University found that artificial regolith containing silicon, aluminium, calcium, iron and magnesium oxide could be used by 3D printers to create solid objects.
While this may have been good news for Nepal, Indian industry claims the market was flooded with exports of hydrogenated vegetable oil, acrylic yarns, iron pipes, copper wire and zinc oxide, which India claims has hurt its market.
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