Tiny Transistors Track Cash

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These itty-bitty low power organic transistors can be placed on the surface of bank notes for security or tracking by transmitting information wirelessly to a scanner. A group of German and Japanese scientists manufacture these 250-nanometer-thick transistors using minute amounts of aluminum and gold and a special dry process. They work well on the rough surface of paper and need only three volts to operate.

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Pretty soon it will be transistor tattoos or skin implants that track us and keep us "always on". Foursquare will be right on it - human adbots live updateable without smartphones (phones and RFID will be so early 21st century).
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Because we all know great things happen when Germany and Japan get together, right?

But really, they will just get damaged too quickly. I don't how much redundancy is built in but if you loose just one or two it may stop working.

Also what about recycling. I know it is an incredibly small volume but it all adds up. Gold is an incredibly important resource. If only we could rapper to stop putting it in their mouths.
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