Featured Research

from universities, journals, and other organizations

Chemists Perfect Fast Way To Synthesize Libraries Of Gold Nanoparticles

Date:
September 6, 2005
Source:
University of Oregon
Summary:
A diverse library of functionalized undecagold clusters synthesized at the University of Oregon Materials Science Institute is featured on the Sept. 5 cover of Inorganic Chemistry. The study by Jim Hutchison and Gerd Woehrle describes 22 functionalized clusters, the mechanism of the ligand exchange and the optical properties of these clusters.

Vol. 44, Issue 18 September 5, 2005 Cover Ligand exchange reactions of phosphine-stabilized undecagold clusters with thiol-containing ligands yield a diverse library of functionalized undecagold clusters, such as the five shown in the cover figure. This study describes 22 functionalized clusters, the mechanism of the ligand exchange, and the optical properties of this family of clusters.
Credit: Image courtesy of University of Oregon

"We've discovered a method forgenerating a diverse library of functionalized gold particles quicklyand easily," said Hutchison, who directs the university's MaterialsScience Institute. "Basic research of this type is the key to findingout what kinds of new electronic, optical and pharmaceutical productsactually will come to market."

The article describes how tosynthesize the versatile particles, built with cores of 11 gold atoms,and discloses their properties. Nanomaterials and technologies areprojected to become a trillion dollar industry by 2010 and affect everyindustrial and consumer product sector, Hutchison said.

One ofthe keys to understanding the size-dependent properties andapplications of nanoparticles is generating libraries of particles withdifferent sizes for physical study. Earlier this year, Hutchison'slaboratory reported success in generating a similar library of largerparticles, with cores having about 100 gold atoms, in the Journal ofthe American Chemical Society. The 11-atom and 100-atom libraries spana size range of 0.8 to 1.5 nanometers, a range of particular interestto nanoscientists and technologists.

Hutchison co-authored theInorganic Chemistry article with Gerd Woehrle, one of his doctoralstudents. Woehrle is now finishing post-doctoral work at the Max PlanckInstitute in Germany.

Already known as world leaders forencouraging the teaching of green chemistry principles, Hutchison andhis Oregon colleagues are pioneering the field of green nanoscience.His role in laying out the conceptual template for how to design"green" or environmentally-benign nanosubstances was described in theMarch issue of Environmental Science & Technology.

Hutchisonis a member of ONAMI, the Oregon Nanoscience and MicrotechnologiesInstitute. The National Science Foundation, the Alfred P. SloanFoundation and the Camille and Henry Dreyfus Foundation, Inc., havefunded his research.



Story Source:

The above story is based on materials provided by University of Oregon. Note: Materials may be edited for content and length.


Cite This Page:

University of Oregon. "Chemists Perfect Fast Way To Synthesize Libraries Of Gold Nanoparticles." ScienceDaily. ScienceDaily, 6 September 2005. <www.sciencedaily.com/releases/2005/09/050906073647.htm>.
University of Oregon. (2005, September 6). Chemists Perfect Fast Way To Synthesize Libraries Of Gold Nanoparticles. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2005/09/050906073647.htm
University of Oregon. "Chemists Perfect Fast Way To Synthesize Libraries Of Gold Nanoparticles." ScienceDaily. www.sciencedaily.com/releases/2005/09/050906073647.htm (accessed August 21, 2014).

Share This




More Matter & Energy News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com
Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Awesome New Camouflage Sheet Was Inspired By Octopus Skin

Newsy (Aug. 19, 2014) Scientists have developed a new device that mimics the way octopuses blend in with their surroundings to hide from dangerous predators. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

Green Power Blooms as Japan Unveils 'hydrangea Solar Cell'

AFP (Aug. 19, 2014) A solar cell that resembles a flower is offering a new take on green energy in Japan, where one scientist is searching for renewables that look good. Duration: 01:29 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