To deter the theft and counterfeiting of medication, NanoGuardian has developed a way to apply nanoscale patterns to individual pills and capsules so that they can be authenticated or traced. The company won’t say how the technology works but claims that the mechanism for producing the pattern can be built into a capsule mold. Detection of the nano pattern has to be performed by NanoGuardian itself, using proprietary means. The technology has been approved by the U.S. Food and Drug Administration for use by a NanoGuardian client.
Cost: A fraction of a penny per pill