Featured Research

from universities, journals, and other organizations

New 'Pyrex' Nanoparticle More Stable In Harsh Environments

Date:
September 10, 2008
Source:
Ecole Polytechnique Fédérale de Lausanne
Summary:
Researchers in Switzerland have developed a new method to fabricate borosilicate glass nanoparticles. Used in microfluidic systems, these "Pyrex"-like nanoparticles are more stable when subjected to temperature fluctuations and harsh chemical environments than currently used nanoparticles made of polymers or silica glass. Their introduction could extend the range of potential nanoparticle applications in biomedical, optical and electronic fields.

Borosilicate glass nanoparticles.
Credit: Martin Gijs, EPFL, Copyright Nature Nanotechnology

Researchers in Switzerland have developed a new method to fabricate borosilicate glass nanoparticles. Used in microfluidic systems, these "Pyrex"-like nanoparticles are more stable when subjected to temperature fluctuations and harsh chemical environments than currently used nanoparticles made of polymers or silica glass.

Their introduction could extend the range of potential nanoparticle applications in biomedical, optical and electronic fields.

Thanks to their large surface-to-volume ratio, nanoparticles have generated wide interest as potential transporters of antibodies, drugs, or chemicals for use in diagnostic tests, targeted drug therapy, or for catalyzing chemical reactions.

Unfortunately, these applications are limited because nanoparticles disintegrate or bunch together when exposed to elevated temperatures, certain chemicals, or even de-ionized water. Using borosilicate glass (the original "Pyrex") instead of silica glass or polymers would overcome these limitations, but fabrication has been impossible to date due to the instability of the boron oxide precursor materials.

In this week's advance online issue of Nature Nanotechnology, a group of EPFL researchers, led by Professor Martin Gijs, reports on a new procedure to fabricate and characterize borosilicate glass nanoparticles. In addition to biomedical applications, the new nanoparticles could also have applications in the production of photonic bandgap devices with high optical contrast, contrast agents for ultrasonic microscopy or chemical filtration membranes.


Story Source:

The above story is based on materials provided by Ecole Polytechnique Fédérale de Lausanne. Note: Materials may be edited for content and length.


Cite This Page:

Ecole Polytechnique Fédérale de Lausanne. "New 'Pyrex' Nanoparticle More Stable In Harsh Environments." ScienceDaily. ScienceDaily, 10 September 2008. <www.sciencedaily.com/releases/2008/09/080907211943.htm>.
Ecole Polytechnique Fédérale de Lausanne. (2008, September 10). New 'Pyrex' Nanoparticle More Stable In Harsh Environments. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2008/09/080907211943.htm
Ecole Polytechnique Fédérale de Lausanne. "New 'Pyrex' Nanoparticle More Stable In Harsh Environments." ScienceDaily. www.sciencedaily.com/releases/2008/09/080907211943.htm (accessed October 2, 2014).

Share This



More Matter & Energy News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Japan Looks To Faster Future As Bullet Train Turns 50

Japan Looks To Faster Future As Bullet Train Turns 50

Newsy (Oct. 1, 2014) — Japan's bullet train turns 50 Wednesday. Here's a look at how it's changed over half a century — and the changes it's inspired globally. Video provided by Newsy
Powered by NewsLook.com
US Police Put Body Cameras to the Test

US Police Put Body Cameras to the Test

AFP (Oct. 1, 2014) — Police body cameras are gradually being rolled out across the US, with interest surging after the fatal police shooting in August of an unarmed black teenager. Duration: 02:18 Video provided by AFP
Powered by NewsLook.com
Raw: Japan Celebrates 'bullet Train' Anniversary

Raw: Japan Celebrates 'bullet Train' Anniversary

AP (Oct. 1, 2014) — A ceremony marking 50 years since Japan launched its Shinkansen bullet train was held on Wednesday in Tokyo. The latest model can travel from Tokyo to Osaka, a distance of 319 miles, in two hours and 25 minutes. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) — A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
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