Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

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

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Making sense of metallic glass February 9th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Announcements

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Superconductivity: Footballs with no resistance - Indications of light-induced lossless electricity transmission in fullerenes contribute to the search for superconducting materials for practical applications February 9th, 2016

SUNY Poly and GLOBALFOUNDRIES Announce New $500M R&D Program in Albany To Accelerate Next Generation Chip Technology: Arrival of Second Cutting Edge EUV Lithography Tool Launches New Patterning Center That Will Generate Over 100 New High Tech Jobs at SUNY Poly February 9th, 2016

Safety-Nanoparticles/Risk management

Lithium battery catalyst found to harm key soil microorganism February 7th, 2016

Are some people more likely to develop adverse reactions to nanoparticle-based medicines? January 31st, 2016

Too-few proteins prompt nanoparticles to clump: Rice scientists: Blood serum proteins must find balance with therapeutic nanoparticles January 29th, 2016

FLEXcon shares insights on developments and safety guidelines in nanotechnology: FLEXcon hosted New England Nanotechnology Association event, discussing latest industry activities and innovations January 25th, 2016

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







Car Brands
Buy website traffic