Featured Research

from universities, journals, and other organizations

Making Nanodots Useful For Chemistry

Date:
June 19, 2003
Source:
University Of California - Davis
Summary:
Nanosized clusters of germanium that can be reacted chemically to make useful materials, such as plastics, have been made by chemists at the University of Wisconsin-Stevens Point and UC Davis.

Nanosized clusters of germanium that can be reacted chemically to make useful materials, such as plastics, have been made by chemists at the University of Wisconsin-Stevens Point and UC Davis.

Nanoparticles, just a few atoms in size, can have different properties from bulk materials because of their small size. Germanium nanoparticles can have luminescent properties and could be used, for example, to make highly efficient lasers or other light-emitting devices. But these nanoparticles are difficult to work with without a chemical "handle."

Robin Tanke, an assistant professor of chemistry at UWSP, worked with UC Davis chemistry professors Susan Kauzlarich and Tim Patten to put useful coatings on germanium nanoclusters. Kauzlarich's laboratory has developed methods for making germanium and silicon nanoclusters, while Patten's research focuses on attaching polymer coatings to different kinds of nanoparticles.

Using this approach, the researchers grew chains of polymers from the nanoparticle surfaces. These materials could be made into plastics that could be cast as thin films for displays or other uses.

The strength of the chemical bonds between the nanoparticle and the coating makes the materials much more stable, Tanke said.

"You can process them as polymers, without losing the nanoparticles," she said.

The ability to put different types of chemical groups on the surface vastly expanded the possible uses of these semiconductor nanoparticles, Patten said. For example, one could connect a magnetic nanoparticle to a luminescent one to make a tiny building block that could be precisely moved or positioned on a surface, he said.

Katherine Pettigrew from UC Davis, Drew Murphy and Mark Thompson from the University of Southern California and Howard Lee from UltraDots Inc., Fremont, Calif. also contributed to the work, which was published in the journal Chemistry of Materials.


Story Source:

The above story is based on materials provided by University Of California - Davis. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Davis. "Making Nanodots Useful For Chemistry." ScienceDaily. ScienceDaily, 19 June 2003. <www.sciencedaily.com/releases/2003/06/030619075658.htm>.
University Of California - Davis. (2003, June 19). Making Nanodots Useful For Chemistry. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2003/06/030619075658.htm
University Of California - Davis. "Making Nanodots Useful For Chemistry." ScienceDaily. www.sciencedaily.com/releases/2003/06/030619075658.htm (accessed July 28, 2014).

Share This




More Matter & Energy News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
TSA Administrator on Politics and Flight Bans

TSA Administrator on Politics and Flight Bans

AP (July 24, 2014) TSA administrator, John Pistole's took part in the Aspen Security Forum 2014, where he answered questions on lifting of the ban on flights into Israel's Tel Aviv airport and whether politics played a role in lifting the ban. (July 24) Video provided by AP
Powered by NewsLook.com
Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
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