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In a study by the University of Twente (UT), researchers have developed a new approach to detect pollutants that have potential human health implications, UT says in a press release.

Why you need to know this:

Innovations, such as the new sensor being developed at the university, could ultimately transform healthcare.

Perchlorate salts are chemicals. They have a slightly negative charge, which can interfere with thyroid function. This can lead to a slow-working thyroid. These molecules are readily soluble in water, but difficult to detect. Therefore, the researchers worked on developing a new material that can bind these perchlorate salts and send a signal when they are detected.

The sensor

The researchers used a special kind of molecule (an anion receptor) that binds to a gold surface. They tried several options and eventually found a substance that sticks well to perchlorate salts and can detect them in a variety of situations. โ€œThese findings offer a promising method for monitoring and tackling this environmental pollutant,โ€ says University of Twente researcher Jurriaan Huskens, one of the studyโ€™s authors.

Not only can this material recognise perchlorates very precisely, but you can also use it multiple times. This allows you to constantly check in real-time whether there are perchlorates in a flowing liquid.In future research, the researchers want to expand the scope of application of these sensor molecules and develop more selective and sensitive anion sensors.

The study is a collaboration between researchers from the University of Twenteโ€™s MESA+ Institute, Technion-Israel Institute of Technology Technology and the Open University of Israel. The published paper is open-access and can be read online.