Evanston, Ill. -- U.S. scientists say they've used nanotechnology to develop a PSA detection method for prostate cancer that's 300 times more sensitive than current tests.
Northwestern University researchers said their new system has been able to detect previously undetectable levels of prostate-specific antigen in patients who have undergone radical prostatectomy.
The researchers said the technology -- which uses the nanoparticle-based bio-barcode assay developed at Northwestern -- can easily and quickly detect very low levels of PSA and may enable doctors to diagnose men with prostate cancer recurrence years earlier than currently possible.
