![PET-ase bacteria](/sites/default/files/styles/resource_card_image_360x300_/public/2023-11/PET-ase_GettyImages-1015900130%20%281%29.jpg?itok=6XqyJYdC)
Plastic-Eating Bacteria: Nature's Recyclers
Backgrounders
Learn how bacteria can help solve the world’s plastic problem.
![Luke Humphries](/sites/default/files/styles/career_image/public/2022-08/Luke%20Humphries.jpg?itok=cmnagxE1)
Luke Humphries
Career Profiles
Director, Process Development
I lead teams of scientists to discover and develop the best ways of making drug molecules for clinical trials.
![Browning apple](/sites/default/files/styles/resource_card_image_360x300_/public/2020-03/Browning_apple.jpg?itok=0ChBaFX8)
Why Do Apples Turn Brown After You Cut Them?
STEM Explained
Has your fresh juicy apple turned an unsightly brown? Learn about the redox reaction behind the transformation.
![orn ethanol plant next to corn field](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/ethanol_plant_and_corn_field.jpg?itok=eSz-wZxP)
How is Ethanol Made?
Backgrounders
Ethanol is a biofuel that can power a car. Learn about the enzymes, catalysts and processes like fermentation involved in ethanol production.
![Hand with screwdriver “repairing” DNA](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/DNA_repair.png?itok=jwH_hm9z)
DNA Damage and Repair
Backgrounders
This backgrounder explains the different ways that cells repair damage to DNA.