Navigation Links
Researchers show how to 'stamp' nanodevices with rubber molds
Date:10/22/2008

By manipulating the way tiny droplets of fluid dry, Cornell researchers have created an innovative way to make and pattern nanoscale wires and other devices that ordinarily can be made only with expensive lithographic tools. The process is guided by molds that "stamp" the desired structures.

"You can in principle build almost any types of architectures you want at nanoscale," reported Dan Luo, Cornell associate professor of biological and environmental engineering, postdoctoral researcher Wenlong Cheng and colleagues. Their work is described in the online edition of the journal Nature Nanotechnology and in the October 2008 print issue.

To demonstrate the process, the researchers assembled gold nanoparticles into nanoscale wires, disks, squares, triangles and "corrals" (spaces enclosed by nanowires), and demonstrated that their nanowires could be connected to microfabricated electrodes, and through them to other circuitry. In addition to metal nanoparticles, the process could be applied to quantum dots, magnetic spheres and other nanoparticles, they said. They also assembled arrays of single salt crystals, suggesting that any material capable of crystallization could be manipulated by the process.

They began with gold nanoparticles about 12 nanometers in diameter suspended in water. To suspend metal particles in water, the researchers coated them with a "ligand" that adheres to the metal and to water. A second innovation in the Cornell process is to use single chains of synthetic DNA as the ligand. The DNA molecules extend out from the particles like hairs and, as the water evaporates, entangle the particles with one another. Adjusting the DNA lengths can precisely control the distance between the particles to make them assemble into orderly arrays called superlattices, rather than clumping together at random. Metal superlattices have applications in computer memory and photonics and have unique properties in electronic circuits
'/>"/>

Contact: Blaine Friedlander
bpf2@cornell.edu
607-254-8093
Cornell University Communications
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Researchers improve ability to write and store information on electronic devices
2. Long-awaited international ethical guidelines for biobank researchers
3. CU researchers shed light on light-emitting nanodevice
4. Stevens researchers provide new information about mass spectrometry
5. Researchers measure carbon nanotube interaction
6. Researchers underscore limitations of genetic ancestry tests
7. ASU researchers improve memory devices using nanotech
8. UD researchers race ahead with latest spintronics achievement
9. Researchers outline structure of largest nonvirus particle ever crystallized
10. Ames Laboratory researchers solve fuel-cell membrane structure conundrum
11. Researchers use magnetism to target cells to animal arteries
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/1/2015)... Investor-Edge has initiated coverage ... GENE ), Agilent Technologies Inc. (NYSE: ... TMO ), Sequenom Inc. (NASDAQ: SQNM ), ... research report on Genetic Technologies can be accessed ... 2015, the NASDAQ Composite ended at 4,941.42, down ...
(Date:5/1/2015)... Md. and RESEARCH TRIANGLE PARK, N.C. ... UTHR ) announced today that Roger Jeffs , ... provide an overview and update on the company,s business at ... in Boston, Massachusetts . The ... 3:30 PM Eastern Time, and can be accessed via a ...
(Date:4/30/2015)... 2015   Tamir Biotechnology , a leading developer ... its Ebola antiviral therapy program. Clinical ... currently being evaluated and considered by a number of ... During the first quarter of 2015, the company participated ... The Evaluation of Potential Treatments and Vaccines For Ebola ...
(Date:4/30/2015)... April 30, 2015 Nitto Avecia, ... announces its increased capacity and production capability to ... client variety and service fulfillment continues to drive ... improve process throughput capacities. , In ... installed downstream process equipment at its Milford, MA ...
Breaking Biology Technology:Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 3Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 4Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 5Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4Biotechnology Manufacturer Nitto Avecia Expands Capacity to Meet Client Demand 2
... May 13 When Sergeant Heather Maddy of the,325th ... of Nashua, NH inquiring about a desperately needed piece,of ... operating,rooms, she never expected one to be delivered within ... let you know that we received the Doppler [System] ...
... and CLAREMONT, Calif., May 13 /Xinhua-PRNewswire-FirstCall/ --,Kiwa ... KWBT),announced finalization of an agreement establishing a ... anti-viral product., On May 9, General ... (,Huaxing,), Mr. Ruijun Li and his associates ...
... /PRNewswire-FirstCall/ - Angiotech Pharmaceuticals,Inc. (NASDAQ: ANPI , ... company, today announced the appointment of Dr. Hank,McKinnell ... is the former Chief Executive Officer and former ... He is currently Chairman of the,Accordia Global Health ...
Cached Biology Technology:Serving Those Who Serve Our Country: Medical Device Company Answers the Call of a U.S. Combat Hospital in Iraq 2Kiwa Bio-Tech Confirms Joint Venture Agreement With Shijiazhuang Huaxing Animal Medicine Co., Ltd. 2Kiwa Bio-Tech Confirms Joint Venture Agreement With Shijiazhuang Huaxing Animal Medicine Co., Ltd. 3Angiotech appoints Hank McKinnell to its Board of Directors 2
(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 ...
(Date:3/30/2015)... and Markets ( http://www.researchandmarkets.com/research/lc9bnl/global_gesture ) has announced ... in Automotive Sector 2014-2018" report to their offering. ... market in Automotive Sector to grow at a CAGR ... recognition is the ability of a device to identify ... recognition technology can be 2D-based or 3D-based. It uses ...
(Date:3/24/2015)... 24, 2015   Crossmatch ™, a leading ... that its U.are.U ® 4500 Fingerprint Readers ... Bros . to achieve PCI compliance for Point-of-Sale ... to the POS terminal, protecting the retailer and ... breaches. With one-third of worldwide ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 110 Million 2Global Gesture Recognition Market in Automotive Sector Report 2015 - Growing Number of Partnerships 2Crossmatch Fingerprint Readers Help Retailer Prevent Data Breaches at Point-of-Sale 2
... dense profusion of branches, the Tree of Life is ... major strides have been made to establish the evolutionary ... still in its infancy. At Arizona State ... the Tree of Life by developing sophisticated methods and ...
... researchers received a five-year, $5 million grant from the National ... risk profiles of breast cancer survivors likely to suffer from ... which will provide the 300 volunteers needed for the study ... have been treated for breast cancer and don,t have a ...
... in agricultural fields and a contributor to poor water quality ... the P Index was proposed as a risk assessment tool ... pains, does the P Index accurately assess the risk of ... in the Journal of Environmental Quality addresses that ...
Cached Biology News:A new computational method for timing the tree of life 2A new computational method for timing the tree of life 3UCLA researchers to study depression in breast cancer survivors 2UCLA researchers to study depression in breast cancer survivors 3The Phosphorus Index: Changes afoot 2The Phosphorus Index: Changes afoot 3
S. O'Hare & C.K. Atterwill • In vitro toxicity techniques for regular lab use. Ex vivo techniques are also covered with the aim of reducing and refining the use of animals in the future....
... converts Cap 0 (or Cap 0-like) RNA ... structure has been shown to increase in ... This improvement is seen in Cap 0 ... System as well as those Cap 0 ...
Form: Concentrated Applications: ELISA...
Form: Ready to use Applications: ELISA...
Biology Products: