More information: Green-Light-Activatable Penicillin for Light-Dependent Spatial Control of Bacterial Growth, Biofilm Formation, and In Vivo Infection Treatment, ACS Central Science (2025). DOI ...

How Blue Light May Affect Your Mental Health Scientists think nighttime exposure to blue light throws off your circadian rhythm , or sleep/wake cycle. This could lead to symptoms of depression.

Blue light can have a negative effect on your melatonin levels. But exposure to green and purple light could also potentially hinder your ability to fall asleep. More research is needed to fully ...

When light shines on a modified compound, the extra molecule breaks away and then releases the active drug. This process gives scientists precise control over when and where drugs are activated.

Now, to make a more efficient antibiotic treatment, researchers have modified penicillin, so that it's activated only by green light.In early tests, the approach precisely controlled bacterial ...