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.

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 September 22, 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 September 22, 2014).

Share This



More Matter & Energy News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Thousands March in NYC Over Climate Change

Thousands March in NYC Over Climate Change

AP (Sep. 21, 2014) — Accompanied by drumbeats, wearing costumes and carrying signs, thousands of demonstrators filled the streets of Manhattan and other cities around the world on Sunday to urge policy makers to take action on climate change. (Sept. 21) Video provided by AP
Powered by NewsLook.com
What This MIT Sensor Could Mean For The Future Of Robotics

What This MIT Sensor Could Mean For The Future Of Robotics

Newsy (Sep. 20, 2014) — MIT researchers developed a light-based sensor that gives robots 100 times the sensitivity of a human finger, allowing for "unprecedented dexterity." Video provided by Newsy
Powered by NewsLook.com
MIT BioSuit A New Take On Traditional Spacesuits

MIT BioSuit A New Take On Traditional Spacesuits

Newsy (Sep. 19, 2014) — The MIT BioSuit could be an alternative to big, bulky traditional spacesuits, but the concept needs some work. Video provided by Newsy
Powered by NewsLook.com
New Music With Recycled Instruments at Colombia Fest

New Music With Recycled Instruments at Colombia Fest

AFP (Sep. 19, 2014) — Jars, bottles, caps and even a pizza box, recovered from the trash, were the elements used by four musical groups at the "RSFEST2014 Sonorities Recycling Festival", in Colombian city of Cali. Duration: 00:49 Video provided by AFP
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:
from the past week

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