Compostable plastics could be part of a solution to the world’s plastic waste problem. But currently these materials need industrial composting facilities to break down. In a step toward making a home-compostable plastic, researchers reporting in ACS Central Science have augmented polylactide (PLA) — a widely used biobased and compostable polymer— with a small amount of an additive. Tests show it helps the material degrade substantially faster without sacrificing critical qualities like strength or transparency. 

Once cotton gets wet, it pulls heat from your body. This is helpful when you’re exercising or outside on a hot day but dangerous in the bitter cold. Now, researchers reporting in ACS Energy Letters have created an ultralight synthetic fiber material with a cotton-like fluffiness that also repels water. The prototype fabric outperformed regular cotton in both retaining heat in the cold and releasing heat at room temperature. 

Depression, anxiety and sleep disorders are among the conditions often treated with antidepressant drugs. Yet, up to 90% of these drugs pass through the body into wastewater. They’re also difficult to remove during water treatment, presenting a possible risk of environmental contamination and threats to ecological and human health. Now, researchers reporting in ACS’ Environmental Science & Technology found some antidepressant drugs at levels that could be harmful to aquatic wildlife in North Carolina waterways.