'Chameleon' tattoos change color, may help diagnose illness

Are you running a fever? Need to reapply your sunscreen? Your tattoo may have the answer.

Building better aerogels by crushing them

Researchers are investigating the mechanical properties or aerogels at the nanoparticle level - combining experiments and computer modeling to look at how polymeric aerogels can fail and become deformed. By crushing and indenting aerogels, they gained a better grasp on the gels? properties.

Microscopic 'sunflowers' for better solar panels

Novel liquid crystal material can be programmed to move in three dimensions, opening up new possibilities for microfabrication.

Realistic exposure study supports the use of zinc oxide nanoparticle sunscreens

New risk assessment may help allay safety concerns.

New graphene-based sensor design could improve food safety

Approach offers high sensitivity for detecting gases, chemicals and pathogens.

Structure of electrolyte controls battery performance

Researchers report that adding water into electrolyte improves the function of vanadium oxide, which is one of positive electrode material in calcium-ion batteries.

New nanoparticle discovery paves the way for innovative magnetic devices

Researchers have characterised the structural, electronic and magnetic behaviour of nanoparticles of iron oxide in the epsilon phase under extreme pressure conditions. This process has led to the discovery of a new phase, epsilon prime, with magnetic properties that were unknown until now.

Visualizing a battery's lithium 'whiskers' and their degrading effects

Scientists study impact of lithium dendrites on cathode materials.