https://seas.harvard.edu/news/jiani-johnson-sb-26-childhood-passion-becomes-bioengineering-success Harvard John A. Paulson School Of Engineering And Applied Sciences en 2026-04-22 Jiani Johnson, S.B. '26: A childhood passion becomes a bioengineering success https://seas.harvard.edu/news/owen-marcovitzs-senior-project-measuring-microplastics-dental-appliances Harvard John A. Paulson School Of Engineering And Applied Sciences en 2026-04-21 Owen Marcovitz's Senior Project: Measuring microplastics in dental appliances