Navigation Links
Nanofabrication method paves way for new optical devices
Date:10/5/2007

EVANSTON, Ill. --- An innovative and inexpensive way of making nanomaterials on a large scale has resulted in novel forms of advanced materials that pave the way for exceptional and unexpected optical properties. The new fabrication technique, known as soft lithography, offers many significant advantages over existing techniques, including the ability to scale-up the manufacturing process to produce devices in large quantities.

The research, led by Northwestern University chemist Teri Odom, appears as the cover story in the September 2007 issue of the journal Nature Nanotechnology.

The optical nanomaterials in this research are called plasmonic metamaterials because their unique physical properties originate from shape and structure rather than material composition only. Two examples of metamaterials in the natural world are peacock feathers and butterfly wings. Their brightly colored patterns are due to structural variations at the hundreds of nanometers level, which cause them to absorb or reflect light.

Through the development of a new nanomanufacturing technique, Odom and her colleagues have succeeded in making gold films with virtually infinite arrays of circular perforations as small as 100 nanometers in diameter -- 500 to 1,000 times smaller than the diameter of a human hair. On a magnified scale, these perforated gold films look like Swiss cheese except the perforations are well-ordered and can spread over macroscale distances. The researchers ability to make these optical metamaterials inexpensively and on large wafers or sheets is what sets this work apart from other techniques.

One of the biggest problems with nanomaterials has always been their scalability, said Odom, associate professor of chemistry in the Weinberg College of Arts and Sciences. Its been very difficult or prohibitively expensive to pattern them over areas larger than about one square millimeter. This research is exciting not only because it demons
'/>"/>

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

Page: 1 2

Related biology technology :

1. A New PCR-based Mycoplasma Detection Method
2. Bioanalytical Method Intraday Validation for the Quantitation of Paroxetine in Bovine Plasma using the TSQ Quantum Mass Spectrometer
3. Comparison of different protein quantitation methods
4. Advancing the quality control methodology to assess isolated total RNA and generated fragmented cRNA
5. Sensitive detection of tumor cells in peripheral blood of carcinoma patients by a reverse transcription PCR method
6. DNA-free A NEW Method to Remove DNA
7. RNase Activity in Mouse Tissue: Classification, Hierarchy, and Methods for Control
8. Comparison of Different Methods of mRNA Quantitation
9. Rapid Method Development With the BioLogic DuoFlow Chromatography System for the Purification of His-Tagged Proteins
10. A Rapid Method for the Purification of Analytical Grade Proteins From Plants Using Preparative SDS-PAGE and Preparative IEF
11. Comparison of PCR Kleen Spin Columns to Traditional Methods for Purification of PCR Products Prior to Sequencing, Rev A
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/4/2015)... May 4, 2015 China Cord Blood Corporation ... China,s leading provider of cord blood ... cell storage services, today announced that the Company has ... a Hong Kong listed company ... into an agreement (the "Agreement") to purchase the Company,s ...
(Date:5/4/2015)... GERMANTOWN, Md. , May 4, 2015   ... it will release first quarter 2015 financial results after ... will host a conference call that day at 5:30 ... general business update. The conference call may ... (International) and asking to join the "Intrexon Conference Call."  ...
(Date:5/1/2015)... Md. , May 1, 2015  Northwest Biotherapeutics ... company developing DCVax® personalized immune therapies for solid tumor ... the $28.5 million second tranche of a $40 million ... Woodford first invested $25 million in NW ... Woodford entered into an agreement with the Company for ...
(Date:5/1/2015)... May 1, 2015 Pfenex Inc. (NYSE ... the development of biosimilar therapeutics including high value ... its first quarter 2015 financial results will be ... open of market. At 8:30 am Eastern Time, Pfenex ... the financial results and provide a business update. A ...
Breaking Biology Technology:China Cord Blood Corporation Receives Notice of a Transaction Regarding its 7% Senior Convertible Notes Due 2017 Held by KKR 2China Cord Blood Corporation Receives Notice of a Transaction Regarding its 7% Senior Convertible Notes Due 2017 Held by KKR 3Intrexon to Announce First Quarter 2015 Financial Results on Monday, May 11, 2015 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 2NW Bio Closes On $28.5 Million Second Tranche Of Woodford $40 Million Financing 3Pfenex To Report First Quarter 2015 Results and Provide Business Update on Thursday, May 14, 2015 2
... Preferred Stock Dividend -, SAN DIEGO, Calif., March ... today announced that its board of directors has,declared a ... common stock,an 8.1% increase over the company,s previous quarterly ... to an annualized dividend,of $1.34 per common share., ...
... PASADENA, Calif., March 14 AutoImmune Inc.,(OTC Bulletin Board: AIMM) ... share basic and diluted, for the three months ended December ... even per share basic,and diluted, for the three months ended ... net loss was $118,000, or $0.01 per share,basic and diluted, ...
... ST. DAVID,S, Bermuda, March 14 It is with ... WCRX ) reports,today that Mr. James G. Andress, ... 2008., Roger Boissonneault, Chief Executive Officer, President and ... "We report the loss of Jim Andress with great ...
Cached Biology Technology:BioMed Realty Trust Announces Increase in Quarterly Common Stock Dividend 2AutoImmune Inc. Reports 2007 Fourth Quarter and Year End Financial Results 2AutoImmune Inc. Reports 2007 Fourth Quarter and Year End Financial Results 3
(Date:4/14/2015)... , April 14, 2015 NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce ... nominated for the 2015 New York Design Awards under ... Design100, New York City Design Awards are part of ... on over 2,500 ratings from the marketplace, industry and ...
(Date:4/8/2015)... April 8, 2015  Infinisource, a leading provider ... and Morpho, a leading supplier of biometric identification ... the market,s most advanced biometrically-enabled time clock, the ... time clock is setting a bold, new standard ... for the small and mid-size employer. When connected ...
(Date:4/2/2015)... , April 2, 2015 ... touch fingerprint sensor FPC1025 from the distributor World Peace ... commence during Q2 2015 although the major part of ... sensors will be used by smartphone manufacturers in ... MSEK is included in the communicated revenue guidance of ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2
... FL--In Florida, where population growth, drought, and saltwater intrusion ... effective ways to educate consumers about household water use ... Florida was included on the Natural Resources Defense Council,s ... shortages in the coming years; the daily total state ...
... challenged by environmental conditions in winter, including low seasonal ... Growers must rely on irrigation to sustain citrus crops ... irrigation needs is critical for successful operations. Authors of ... current methods used to determine moisture needs for citrus ...
... natural environment is a popular conservation tool around the ... for both people and nature, is a thorny problem, ... "Short attention-span worlds with long attention-span problems" is ... student now on faculty at the University of North ...
Cached Biology News:Can workshops on household water use impact consumer behavior? 2Well-watered citrus tested in cold-acclimating temperatures 2To calculate long-term conservation pay off, factor in people 2
... The membrane filters suitable for use in the ... top of each filter, in a specially designed ... special pleating of the band of membrane filter ... dispensed. The shape of the sealed band guarantees ...
... PRKAR2 cAMP is a signaling molecule ... cAMP exerts its effects by activating the ... signal through phosphorylation of different target proteins. ... tetramer composed of two regulatory and two ...
... The model 55S Rocking Shaker ... gels and blotted membranes. The very ... adjustable degree of tilt provide a ... washes over gels and blotted membranes ...
...
Biology Products: