Uric Acid Monitoring with a Smartphone as the Electrochemical Analyzer.

We report the world's first medical smartphone as an electrochemical analyzer, which is incorporated with an enzymatic test strip for rapid characterization of UA (uric acid) in peripheral whole blood. A disposable electrochemical uric acid test strip was connected to the electrochemical module integrated with the smartphone through a specific interface, a slot around the edge of smartphone. A 3 μL human finger whole blood drop is applied on the strip for UA evaluation and compared to the clinical biochemical analyzer with satisfactory agreement. The measured data was saved and uploaded into a personal health management center through the mobile Internet.