text-only page produced automatically by LIFT Text Transcoder Skip all navigation and go to page contentSkip top navigation and go to directorate navigationSkip top navigation and go to page navigation
National Science Foundation
News
design element
News
News From the Field
For the News Media
Special Reports
Research Overviews
NSF-Wide Investments
Speeches & Lectures
NSF Current Newsletter
Multimedia Gallery
Search Multimedia
Image
Video
Audio
More
Multimedia in the News
NSF Executive Staff
News Archive
 

Email this pagePrint this page
New technique for imprinting nanodevices


Sharon Weiss developed simple technique for stamping patterns invisible to the human eye

Sharon Weiss, an associate professor of electrical engineering at Vanderbilt University, and her colleagues developed a simple technique for stamping patterns invisible to the human eye onto a special class of nanomaterials, providing a new, cost-effective way to produce novel devices in areas ranging from drug delivery to solar cells.

For a number of years, scientists have been intrigued by a special class of materials, called porous nanomaterials, because they have unique optical, electrical and mechanical properties. Imagine stiff, sponge-like materials filled with holes that are too small to see without a special microscope. One of the major obstacles to using these materials--there are nanoporous forms of gold, silicon, alumina and titanium oxide, among others--has been the cost and complexity of the processes that have been used to transform them into devices for use in drug delivery, chemical and biological sensors, solar cells and battery electrodes.

Several years ago, Weiss got the idea of using the complex ultraviolet and electron beam lithography processes that have been used to make devices out of porous nanomaterials to produce stamps instead, making devices by direct imprinting. This low-cost process has proven that it can accurately imprint these special materials with the intricate patterns required. [The technique was described in the cover article of the May 2011 issue of the journal Nano Letters. ] Vanderbilt has applied for a patent on the new technique, called Direct Imprinting of Porous Suibstrates.

This research was supported in part by a Graduate Research Fellowship from the National Science Foundation. To learn more, see the Vanderbilt news story Stamping out low cost nanodevices. (Date of Image: 2006)

Credit: Anne Neil Brake, Vanderbilt University

General Restrictions:
Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.

Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation. Additional information about general usage can be found in Conditions.

Also Available:
Download the high-resolution JPG version of the image. (1.6 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

 



Email this pagePrint this page
Back to Top of page