Articles sur Nanoparticles

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Without electrons there would be no electron microscopes, and therefore no close-ups like this image of pollen. Heiti Paves/Wikimedia Commons

Small world: does ecology reach all the way down to the subatomic scale?

The advent of electron microscopy and nanobiology has moved our appreciation of the living world to unprecedentedly small scales – with entirely new benefits and potential pitfalls to consider.
Some companies have used nano-titanium dioxide to make powdered sugar on donuts whiter. Shutterstock

No big deal: there is little to fear from nanoparticles in food

Two new studies from Food Standards Australia and New Zealand show there's no evidence that nanoparticles in food present a health risk, but there's more research to be done.
Substances, such as these carbon nanotubes, can behave differently at the nano-scale, and may post a health risk. ZEISS Microscopy/Flickr

Big questions about risk assessment of nanomaterials

We need to carefully assess nanomaterials to ensure their safety, but there are questions over whether the existing practice of risk assessment is up to the task.
Nanosafety research ensures everyday use of nanoparticles – such as sunscreen – stays safe. Flickr/Eliya

Nanoparticles and nanosafety: the big picture

Nanoparticles — or nanomaterials, as they are often called — are chemical objects with dimensions in the range of 1-100 nanometres (nm). Particles this tiny are hard to imagine, but it may help to think…
Tiny, but they make a big difference: nanoparticles build up in the environment in all kinds of ways. victorpuntes/Flickr

Manufactured nanomaterials are a big deal in the environment

Major advances in technology are being spawned by the synthesis and application of nanoparticles and nanocomposites. The nanotechnology revolution offers great promise for major advances in medicine, manufacturing…
Exterminate! Roj

Swarms of robots could fight cancer (with your help)

Cancer researchers are not shy of using nanotechnology. Their work is making promising headway into developing safer and more effective treatments. And now, new developments in the area mean that the general…

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