Researchers at Penn State University and SurroMed, Inc., in the 5 October issue of the journal Science report on the fabrication, optical properties, and initial application of microscopic metallic ...

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Most of us would have done shopping in malls, shops and like-wise places and at the time of payment at cash counter you must have seen that the salesman had scanned the tag of the product you ...

Researchers have engineered a class of transient thermal barcodes that can be printed directly ...