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University of S?o Paulo develops sensor that can detect traces of pesticides in fruit and vegetables
date:Apr 04, 2023
pesticides are displayed on a smartphone. In the tests we performed, its sensitivity was similar to the conventional methods. Plus, it's fast and inexpensive, said Jos Luiz Bott Neto, a postdoctoral fellow at IFSC-USP.

The device consists basically of a paper substrate modified with carbon ink and submitted to electrochemical treatment in an acid medium to activate carboxyl groups and make detection possible, Bott Neto explained.

In developing the device, the researchers evaluated the stabili

12/19 00:20