From designs for transistors made of paper to artificial organs for the body, these inventors have changed our lives across the world.

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Since 1987 Alim-Louis Benabid has worked to cure the tremors caused by the onset of Parkinson's disease. Over 150K patients worldwide have benefited from his invention, using deep brain stimulation. How does the therapy actually work?
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Around 1 percent of the population is allergic to gluten. Food technologists Verna Cerne and Ombretta Polenghi are working on a gluten substitute to help those with allergies and celiac disease.