Cornell engineers create smartCARD that uses smartphone's camera to read cholesterol level

Published on December 16, 2013 at 1:11 AM · No Comments

With a new smartphone device, you can now take an accurate iPhone camera selfie that could save your life - it reads your cholesterol level in about a minute.

Forget those clumsy, complicated, home cholesterol-testing devices. Cornell engineers have created the Smartphone Cholesterol Application for Rapid Diagnostics, or "smartCARD," which employs your smartphone's camera to read your cholesterol level.

"Smartphones have the potential to address health issues by eliminating the need for specialized equipment," said David Erickson, Cornell associate professor of mechanical engineering and senior author on a new peer-reviewed study. Thanks to advanced, sophisticated camera technology, Erickson and his colleagues have created a smartphone accessory that optically detects biomarkers in a drop of blood, sweat or saliva. The new application then discerns the results using color analysis.

When a user puts a drop of blood on the cholesterol test strip, it processes the blood through separation steps and chemical reactions. The strip is then ready for colorimetric analysis by the smartphone application.

The smartCARD accessory - which looks somewhat like a smartphone credit card reader - clamps over the phone's camera. Its built-in flash provides uniform, diffused light to illuminate the test strip that fits into the smartCARD reader. The application in the phone calibrates the hue saturation to the image's color values on the cholesterol test strip, and the results appear on your phone.

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