Advance could aid development of nanoscale biosensors

Hello, forums people. Here's your dose of current events for the day:

Imagine a hand-held environmental sensor that can instantly test water for lead, E. coli, and pesticides all at the same time, or a biosensor that can perform a complete blood workup from just a single drop. That's the promise of nanoscale plasmonic interferometry, a technique that combines nanotechnology with plasmonics—the interaction between electrons in a metal and light.

Link: user link on phys.org

Duh, right?

We'll see if this becomes a reality. If so, forget fitbit, we'll have implanted biosensors so that all the doctor needs is a quick e-mail from a smartphone app to get blood pressure, blood sugar, etc.