Scientists pinpoint one way nanoparticles damage immune cells

Scientists have shown that a process known as oxidative stress is at work during encounters between certain nanoparticles and immune cells, selectively modifying proteins on macrophages, a type of immune cell. The findings, ...

Scientists discover how mitochondria import antioxidants

Many of the processes that keep us alive also put us at risk. The energy-producing chemical reactions in our cells, for example, also produce free radicals—unstable molecules that steal electrons from other molecules. When ...

Can your phone double up as your life-coach?

(Phys.org)—Researchers are developing a smartphone platform that enables careful monitoring of lifestyle to pinpoint and help avert triggers for stress and negative emotion.

Human handling stresses young monarch butterflies

People handle monarch butterflies. A lot. Every year thousands of monarch butterflies are caught, tagged and released during their fall migration by citizen scientists helping to track their movements. And thousands of caterpillars ...

New cellular protective mechanism discovered

A vast number of biological reactions occur inside cells, generating various byproducts. Some of these can be highly reactive molecules, and if they build up inside cells they can cause stress and damage. One class of these ...

A molecular ripcord for chemical reactions

Researchers at Eindhoven University of Technology (the Netherlands) have developed an entirely new method for starting chemical reactions. For the first time they used mechanical forces to control catalytic activity - one ...

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