Nanomedicine: Barcodes check out prostate cancer.

This article discusses research on gold nanoparticle-based assay that could detect recurrences of prostate cancer. It references a study by Chad Mirkin and colleagues at Northwestern University in Evanston, Illinois and Innsbruck Medical University in Tyrol, Austria published in a 2009 issue of "Proceedings of the National Academy of Sciences." The methodology and findings of the study are detailed.