Home > Press > First synthesis of gold nanoparticles inside human hair for dyeing and much more
 |
| Gold nanoparticles darken hair after treatment for one day, center, and 16 days, right (untreated hairs, left).
Credit: American Chemical Society |
Abstract:
In a discovery with applications ranging from hair dyeing to electronic sensors to development of materials with improved properties, scientists are reporting the first synthesis of gold nanoparticles inside human hairs. Their study appears in ACS' journal Nano Letters.
First synthesis of gold nanoparticles inside human hair for dyeing and much more
Washington, DC | Posted on December 5th, 2012Philippe Walter and colleagues explain that gold nanoparticles — 40,000-60,000 of which could fit across the width of a human hair — are a hot topic. Scientists are exploring uses, ranging from electronics and sensors to medical diagnostic tests and cancer treatments. Gold nanoparticles have been deposited on hair for use as electrodes, and gold nanoparticles had been used to dye wool. Walter's team looked at a new use — dyeing hair, inspired by the ancient Greeks' and Romans' use of another metal, lead, to color their hair.
They describe the first synthesis of fluorescent gold nanoparticles inside human hair. It involved soaking white hairs in a solution of a gold compound. The hairs turned pale yellow and then darkened to a deep brown. Using an electron microscope, the scientists confirmed that the particles were forming inside the hairs' central core cortex. The color remained even after repeated washings.
The authors acknowledge funding from the Agence Nationale de la Recherche.
####
About American Chemical Society (ACS)
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 164,000 members, ACS is the world's largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.
To automatically receive news releases from the American Chemical Society, contact
For more information, please click here
Contacts:
Michael Bernstein
202-872-6042
Philippe Walter, Ph.D.
Université Pierre et Marie Curie-CNRS
Ivry-sur-Seine, Paris 94200
France
Phone : +33 1 44 27 82 22
Fax : +33 1 44 27 82 98
Email:
Copyright © American Chemical Society (ACS)
If you have a comment, please Contact us.Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
| Related Links |
| Related News Press |
News and information
Flexible electronics integrated with paper-thin structure for use in space January 17th, 2025
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Govt.-Legislation/Regulation/Funding/Policy
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Chip Technology
Enhancing transverse thermoelectric conversion performance in magnetic materials with tilted structural design: A new approach to developing practical thermoelectric technologies December 13th, 2024
Bringing the power of tabletop precision lasers for quantum science to the chip scale December 13th, 2024
Nanofibrous metal oxide semiconductor for sensory face November 8th, 2024
Nanomedicine
Exosomes: A potential biomarker and therapeutic target in diabetic cardiomyopathy November 8th, 2024
Unveiling the power of hot carriers in plasmonic nanostructures August 16th, 2024
Sensors
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Beyond wires: Bubble technology powers next-generation electronics:New laser-based bubble printing technique creates ultra-flexible liquid metal circuits November 8th, 2024
Nanotechnology: Flexible biosensors with modular design November 8th, 2024
Discoveries
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Announcements
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
The National Space Society Congratulates SpaceX on Starship’s 7th Test Flight: Latest Test of the Megarocket Hoped to Demonstrate a Number of New Technologies and Systems January 17th, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||