3D-Printable Sensor ‘Turns Blue’ to Detect Trace Amounts of Water

3D-Printable Sensor ‘Turns Blue’ to Detect Trace Amounts of Water

If there is too much water in fuel, it won’t burn properly. If oil holds too much water, it may not lubricate machinery effectively.

A team from the Autonomous University of Madrid (UAM) built a color-changing sensor that can detect the presence of water to protect oil integrity, as well as support a variety of additional applications, from food-quality control to environmental monitoring.

The plastic-composite sensor changes its color from purple to blue in wet conditions.

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