Iranian nanosensors detect carcinogen in food

Zistboom: Highly sensitive and cheap electrochemical nanosensors were designed by Iranian researchers to analyze Sudan I, which is a cancerous food color.

The researchers used synthetic nanocomposites of platinum/carbon nanotube in designing the nanosensors, Fars News Agency reported.

In this research, they designed a sensitive electrochemical sensor modified with platinum/carbon nanocomposite to analyze the toxic compound of Sudan I in food samples. Since Sudan I is a forbidden additive and causes cancer, its quick detection is essential.

However, the weak signal of this compound makes it very difficult to detect tiny amounts of it. Therefore, the use of platinum/carbon nanocomposite synthesized through polyol method has enabled researchers to strengthen the weak signal of the sample and they made possible the detection of this material in food samples such as tomato ketchup.

The use of a nanocomposite and its mixing with ionic liquid to analyze tiny amounts of Sudan I are among important characteristics of this research. This is the first application for the combination of platinum-based nanocomposite with ionic liquids in the analysis of tiny amounts of Sudan I.

The presence of nanocomposite with platinum and carbon nanotube base increases the electrical conduction of the electrode surface due to the high ratio of area to volume and high conductivity of the compounds. Therefore, it can strengthen weak signals of Sudan I.

Since tiny amounts of Sudan I cause cancer too, the researchers needed a sensor with strong signal. The presence of nanocomposite in this research has resolved this problem.

By Zistboom 


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