Minnesota teen's peanut shell pesticide remover earns spot in 3M science finals
Arika Kundu, a 13-year-old student from Minnesota, has developed a method using discarded peanut shells to remove pesticide residues from fruits and vegetables. Her project, named LIGNEX, caught the attention of judges at the 2026 3M Young Scientist Challenge. Kundu has been selected as one of ten finalists in the prestigious competition. She will now work alongside a 3M scientist as she competes for the $25,000 grand prize.
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