Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > News > Particles in sunscreen could be toxic if accidentally eaten

June 26th, 2010

Particles in sunscreen could be toxic if accidentally eaten

Abstract:
Tiny particles in sunscreens could be toxic to cells in the gut if they are accidentally eaten, researchers have shown. They say that nano-particles of zinc oxide may be more likely to cause harm than conventional zinc oxide.

Nano-particles, very tiny particles barely 1/50,000 the breadth of a human hair, are used in many products including cosmetics and sunscreens. But there has been concern about how safe they are, because they can act differently to larger particles of the same substance.

Zinc oxide is a common ingredient of sunscreens because it can block the sun's rays. But traditional zinc-based creams tend to leave white residue on the skin, which some people find unsightly. Nano-particles of zinc oxide don't leave a residue, so creams containing nano-particles have become a popular alternative.

The question is whether the tiny particles can cause any harm. Zinc is known to cause damage to the lungs if it's inhaled as dust. Some doctors worry about what could happen if children accidentally eat sunscreens containing nano-particles of zinc.

New research has looked to see what happens to cells from the human gut if they come into contact with zinc oxide nano-particles. The research was carried out using cells grown in the laboratory, so it's not a direct test of what might happen if the substance is eaten.

Source:
guardian.co.uk

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Candy cane supercapacitor could enable fast charging of mobile phones August 17th, 2017

Announcements

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Candy cane supercapacitor could enable fast charging of mobile phones August 17th, 2017

Safety-Nanoparticles/Risk management

Tests show no nanotubes released during utilisation of nanoaugmented materials June 9th, 2017

NanoMONITOR shares its latest developments concerning the NanoMONITOR Software and the Monitoring stations April 21st, 2017

NIST updates 'sweet' 1950s separation method to clean nanoparticles from organisms January 27th, 2017

Nanoparticle exposure can awaken dormant viruses in the lungs January 17th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project