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Treated kraft paper is the element used for the detection of pesticides in unprecedented technology
Researchers at the University of São Paulo (USP) developed an electrochemical kraft paper sensor capable of detecting the presence of pesticides in real time. Furthermore, the device is similar to glucose meters used by diabetics.
However, it was created using a technique that uses conductive carbon ink on a strip of modified kraft paper. This tape was submitted to an electrochemical treatment in an acid medium for the activation of carboxylic groups. The sensor can identify and measure the amount of carbendazim fungicide present in food samples in a matter of minutes.
Check out a little more about the risks and insecurity of pesticides in food with the video below
Functioning of the sensor developed by researchers from the University of São Paulo
Upon contact with a sample contaminated with carbendazim, the sensor induces an electrochemical oxidation reaction that allows detection of the fungicide. Thus, the amount of carbendazim is measured via electric current.
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The device is composed of three carbon electrodes and immersed in an acidic solution to activate the carboxylic groups. The result can be accessed through a mobile application. Thus, there is no need for complex procedures to verify the presence of pesticides.
Potential use of kraft paper electrochemical sensor
The kraft paper electrochemical sensor has high sensitivity and can be used not only in agriculture and food industry, but also in other areas such as health. In addition, paper is a more malleable material than plastic or ceramics, which broadens its use in various applications.
The technique used by the researchers is faster, cheaper and more reliable than conventional methods for detecting pesticides in food. However, the device can be used by supermarkets, restaurants and importers.
Benefits of kraft paper electrochemical sensor for pesticide detection
The kraft paper electrochemical sensor for pesticide detection brings several benefits over conventional methods for detecting pesticides in food. In addition to being faster and cheaper, the device is highly sensitive and reliable. It enables real-time detection of the presence of pesticides in fruits and vegetables, which can ensure food safety for consumers.
Furthermore, the sensor is easy to use and can be applied in various fields. That is, it is not restricted to agriculture and the food industry. After all, it can be applied to health and other areas. With their innovative technology, the USP researchers offer a new solution for the detection of pesticides in food. In this way, society has many benefits.
The relationship between the use of pesticides and Brazilian agriculture
In recent years, Brazil has become one of the largest consumers of pesticides in the world. This condition is a consequence of the high demand of the agricultural production in the country, which faces challenges such as lack of infrastructure, skilled labor and financial resources.
Although the use of pesticides has been a solution found to increase productivity, it brings with it serious consequences, such as soil, water and food contamination. In addition, the inappropriate use of these products can lead to health problems for rural workers and the general population.
It is important to emphasize that precision agriculture technology can be an alternative to reduce dependence on pesticides in Brazilian agricultural production. With the use of techniques such as mapping the planting area, monitoring the climate and applying inputs more precisely, it is possible to reduce the amount of pesticides used without compromising productivity.
