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Some products are already on the market, wrote Adam Leman, a GFI scientist.

Tang's team and Leman Biotech is currently working toward that goal.

The start-up Leman Biotech, co-founded by Tang and paper co-author Yugang Guo, aims to commercialize the treatment.

"We found that interesting because we often have the image of the Leman Lake as a big Alpine lake with crystal waters but it's not really the case," he said, using the French name.

He was speaking from the stern of a sailing vessel that was dragging a sample-collecting device across Switzerland's biggest lake, also known as Lac Leman.