Featured Research

from universities, journals, and other organizations

Ancient Hair Dye Based On Nanotechnology

Date:
October 4, 2006
Source:
American Chemical Society
Summary:
A hair dye developed 2,000 years ago relied on nanotechnology to change the graying hair of people in ancient Greece and Rome into a youthful black color, scientists in France report.

A hair dye developed 2,000 years ago relied on nanotechnology to change the graying hair of people in ancient Greece and Rome into a youthful black color, scientists in France report.

Related Articles


Philippe Walter and colleagues studied a hair-dyeing recipe first described in Greco-Roman times, which is the basis of modern hair dyes that gradually darken gray or white hair.

Their research, published in the current (September) issue of the monthly ACS journal Nano Letters, found that the dye works by causing formation of nanocrystals of lead sulfide. That chemical compound forms inside hair shafts and colors hair black without damaging the hair.

The lead sulfide crystals look much like the lead sulfide quantum dots synthesized recently using techniques from materials science, they state.

"In contrast to modern nanotechnology, the dyeing process is characterized by basic chemistry methods and has been developed more than 2,000 years ago with low-cost natural products," the scientists report.


Story Source:

The above story is based on materials provided by American Chemical Society. Note: Materials may be edited for content and length.


Cite This Page:

American Chemical Society. "Ancient Hair Dye Based On Nanotechnology." ScienceDaily. ScienceDaily, 4 October 2006. <www.sciencedaily.com/releases/2006/10/061004180504.htm>.
American Chemical Society. (2006, October 4). Ancient Hair Dye Based On Nanotechnology. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2006/10/061004180504.htm
American Chemical Society. "Ancient Hair Dye Based On Nanotechnology." ScienceDaily. www.sciencedaily.com/releases/2006/10/061004180504.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

Toyota's Hydrogen Fuel-Cell Green Car Soon Available in the US

AFP (Nov. 21, 2014) Toyota presented its hydrogen fuel-cell compact car called "Mirai" to US consumers at the Los Angeles auto show. The car should go on sale in 2015 for around $60.000. It combines stored hydrogen with oxygen to generate its own power. Duration: 01:18 Video provided by AFP
Powered by NewsLook.com
Google Announces Improvements To Balloon-Borne Wi-Fi Project

Google Announces Improvements To Balloon-Borne Wi-Fi Project

Newsy (Nov. 21, 2014) In a blog post, Google said its balloons have traveled 3 million kilometers since the start of Project Loon. Video provided by Newsy
Powered by NewsLook.com
Raw: Paralyzed Marine Walks With Robotic Braces

Raw: Paralyzed Marine Walks With Robotic Braces

AP (Nov. 21, 2014) Marine Corps officials say a special operations officer left paralyzed by a sniper's bullet in Afghanistan walked using robotic leg braces in a ceremony to award him a Bronze Star. (Nov. 21) Video provided by AP
Powered by NewsLook.com
British 'Bio-Bus' Is Powered By Human Waste

British 'Bio-Bus' Is Powered By Human Waste

Buzz60 (Nov. 21, 2014) British company GENeco debuted what its calling the Bio-Bus, a bus fueled entirely by biomethane gas produced from food scraps and sewage. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins