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3D-Printed Sensor Can Detect Herbicide in Beverages

By WSU Insider

September 17, 2021

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Engineers at Washington State University (WSU) and DL ADV-Tech have developed a low-cost sensor device that can detect and quantify the herbicide glyphosate in liquids.

WSU's Yuehe Lin said, "We designed it to be portable and used 3D [three-dimensional]-printing to make it small and compact, so that it can be used anywhere—in the lab or in the field."

The device uses technology similar to that of glucose detectors that measure blood sugar levels; it employs conducting polymer nanotubes imprinted with molecule-sized cavities that can bind glyphosate molecules, which are coated on a 3D-printed device that measures glyphosate concentrations with an electric current.

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