Asymmetric interactions between molecules may serve as a stabilizing factor for biological systems. A new model reveals this regulatory role of non-reciprocity. The scientists aim to understand the ...

How do complex mixtures of chemicals affect our health? New research has shown that chemicals that occur in complex mixtures and in concentration ratios as found in humans act together. Even if the ...

(Beyond Pesticides, September 12, 2025) A team of Argentinian researchers conducted a study published in Environmental Toxicology and Pharmacology of the combined effects of the herbicide glyphosate ...

When liquids containing small particles evaporate, those fluids often leave behind fingerprints like coffee rings or whiskey webs (SN: 10/31/19). But liquids mixed with other liquids leave their own ...

A first-of-its-kind study has measured the toxicity of several types of per- and polyfluoroalkyl substances (PFAS), better known as "forever chemicals," when mixed together in the environment and in ...

A Sydney Ph.D. student has recreated a tiny piece of the universe inside a bottle in her laboratory, producing cosmic dust from scratch. The results shed new light on how the chemical building blocks ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

The topics of snake venom evolution, composition of venoms, types of toxins, ecological adaptation, prey specialisation, ...