If the iceberg is spotted early enough, then there is time to take evasive action. The bio-barcode assay developed by Mirkin and co-workers can detect PSA at concentrations as low as 330 fg ml − ...

In the new assay system used at the Mirkin lab ... Chemistry professor and nanotech entrepreneur Chad Mirkin's "bio-barcode"-based system12 equals PCR in its sensitivity while promising to vastly ...