Cheap electronic inks could see the demise of QR codes

			A group of researchers in Korea have created an inexpensive way to transmit data from objects to mobile phones when swiped. Small "rectannas", a cross between an antenna and a power source, are printed onto plastic foils using electronic inks that cost only a penny to produce.  It uses the radio waves emitted from a smartphone to transmit data to it from a tiny chip.

As NFC is the main technology behind it - and it is already used in devices that enable contactless payments - this could easily become a replacement for QR codes.  To read more click here.