Navigation Links
The nano world of Shrinky Dinks
Date:8/13/2010

The magical world of Shrinky Dinks -- an arts and crafts material used by children since the 1970s -- has taken up residence in a Northwestern University laboratory. A team of nanoscientists is using the flexible plastic sheets as the backbone of a new inexpensive way to create, test and mass-produce large-area patterns on the nanoscale.

"Anyone needing access to large-area nanoscale patterns on the cheap could benefit from this method," said Teri W. Odom, associate professor of chemistry and Dow Chemical Company Research Professor in the Weinberg College of Arts and Sciences. Odom led the research. "It is a simple, low-cost and high-throughput nanopatterning method that can be done in any laboratory."

Details of the solvent-assisted nanoscale embossing (SANE) method are published by the journal Nano Letters. The work also will appear as the cover story of the journal's February 2011 issue.

The method offers unprecedented opportunities to manipulate the electronic, photonic and magnetic properties of nanomaterials. It also easily controls a pattern's size and symmetry and can be used to produce millions of copies of the pattern over a large area. Potential applications include devices that take advantage of nanoscale patterns, such as solar cells, high-density displays, computers and chemical and biological sensors.

"No other existing nanopatterning method can both prototype arbitrary patterns with small separations and reproduce them over six-inch wafers for less than $100," Odom said.

Starting with a single master pattern, the simple yet potentially transformative method can be used to create new nanoscale masters with variable spacings and feature sizes. SANE can increase the spacing of patterns up to 100 percent as well as decrease them down to 50 percent in a single step, merely by stretching or heating (shrinking) the polymer substrate (the Shrinky Dinks material). Also, SANE can reduce critical feature sizes as small as 45 percent compared to the master by controlled swelling of patterned polymer molds with different solvents. SANE works from the nanoscale to the macroscale.

Biologists, chemists and physicists who are not familiar with nanopatterning now can use SANE for research at the nanoscale. Those working on solar energy, data storage and plasmonics will find the method particularly useful, Odom said.

For example, in a plasmonics application, Odom and her research team used the patterning capabilities to generate metal nanoparticle arrays with continuously variable separations on the same substrate.

SANE offers a way to meet three grand challenges in nanofabrication from the same -- and a single -- master pattern: (1) creating programmable array densities, (2) reducing critical feature sizes, and (3) designing different and reconfigurable lattice symmetries over large areas and in a massively parallel manner.


'/>"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
Source:Eurekalert

Related biology technology :

1. New Test Centre in India: TUV Rheinland Continues Worldwide Investment Programme for Solar Industry
2. New Advances in Understanding of Parasite Risk Showcased at CVBD World Forum
3. Engineering researchers simplify process to make worlds tiniest wires
4. United Nations' World Population Day Calls Attention to Key Global Issues
5. Aeterna Zentaris: Perifosine Data Selected for Oral Presentation at Upcoming 12th World Congress on Gastrointestinal Cancer
6. Progenika Biopharma Grants Grifols World-Wide Distribution Rights for the BLOODCHIP® Genotyping Test for Blood Donors
7. World Low Calorie/Diet Beverages Market (2010 -2015): MarketsandMarkets
8. World of lights in the microcosmos
9. Ed Brennan - New C.O.O. of Trans World Alloys
10. Neurocrine Biosciences Announces Conference Call and Webcast on Worldwide Agreement With Abbott on Elagolix
11. Rapid Increase in the Number of Worldwide Nanotechnology Degree Programs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/14/2017)... ... 14, 2017 , ... AIM Global, the worldwide standards agency for AIDC and ... 2017 Case Study Competition for AIDC. The award is given to those in ... push the adoption of automated data collection systems further. The TRACTUS platform, by ...
(Date:9/12/2017)... , ... September 12, 2017 , ... ... and highly scalable cloud-based platform for ambulatory patient monitoring and clinical trial support, ... Advance Clinical Trials conference in Boston. , Launched in 2005, PhysIQ leverages ...
(Date:9/12/2017)... ... September 12, 2017 , ... Soybean researchers ... to submit a "pre-proposal” by October 15, prior to completing a full grant ... are aligned with our priorities, and to encourage researchers to further develop ones ...
(Date:9/12/2017)... ... September 11, 2017 , ... Global molecular ... today that Holotype HLA and other Omixon products will be featured among eight ... American Society for Histocompatibility and Immunogenetics (ASHI) in San Francisco, CA. Additionally, ...
Breaking Biology Technology:
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
(Date:4/5/2017)... 2017  The Allen Institute for Cell Science today ... one-of-a-kind portal and dynamic digital window into the human ... first application of deep learning to create predictive models ... and a growing suite of powerful tools. The Allen ... future publicly available resources created and shared by the ...
(Date:4/4/2017)... April 4, 2017   EyeLock LLC , a ... the United States Patent and Trademark Office (USPTO) has ... the linking of an iris image with a face ... represents the company,s 45 th issued patent. ... very timely given the multi-modal biometric capabilities that have ...
Breaking Biology News(10 mins):