HOME >> MEDICINE >> NEWS
A giant step toward tiny functional nanowires

EVANSTON, Ill. --- Carving a telephone pole is easy if you have the right tools, say a power saw and some large chisels. And with some much tinier tools you could even carve a design into a paper clip if you wanted to. But shrink your sights down to the nanoscale, to a nanowire that is 1,000 times smaller than the diameter of a paper clip, and you find there are no physical tools to do the job properly.

So a team of Northwestern University scientists turned to chemistry and developed a new method that can routinely and cheaply produce nanowires with gaps as small as five nanometers wide -- a feat that is unattainable using conventional lithographic techniques. The results will be published in the July 1 issue of the journal Science.

Carved gaps are essential to a nanowire's function, and controlling those gaps would allow scientists and engineers to design with precision devices ranging from tiny integrated circuits to gene chips and protein arrays for diagnostics and drug discovery.

"With miniaturization happening across so many fields, our existing tools -- our chisels of a sort -- can't control the shapes and spacing of these small structures," said Chad A. Mirkin, director of Northwestern's Institute for Nanotechnology, who led the research team. "Our method allows us to selectively introduce gaps into the wires. These gaps can be filled with molecules, making them components for building small electronic and photonic devices or chemical and biological sensors."

The development of sophisticated nanoelectronics, said Mirkin, depends on the ability to fabricate and functionalize electrode gaps less than 20 nanometers wide for precise electrical measurements on nanomaterials and even individual molecules. While conventional techniques can't make gaps much smaller than 20 nanometers wide, Mirkin's method, called on-wire lithography, or OWL, has been able to produce gaps as small as 2.5 nanometers wide.

Mirkin and his team
'"/>

Contact: Megan Fellman
fellman@northwestern.edu
847-491-3115
Northwestern University
30-Jun-2005


Page: 1 2

Related medicine news :

1. Brief, high-dose steroid treatment offers extended relief to giant cell arteritis patients
2. Progress toward an antitumor vaccine
3. Free public talk on epilepsy research and progress towards better treatment
4. New study in Sleep finds a high level of negativity towards judicial sleepiness
5. Kenya moves toward national food and nutrition policy
6. A sweet step toward new cancer therapies
7. Comprehensive reforms to move toward patient-centered care released by ACP
8. Pioneers in field of functional genomics work toward gene therapy for vision defects
9. Breastfeeding overcomes a genetic tendency toward ear infections, scientists discover
10. Fosrenol data show evidence of trends towards improved bone formation in CKD stage 5 patients
11. Rutgers College of Nursing professor to examine Latinas attitudes towards exercise

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: giant step toward tiny functional nanowires

(Date:4/18/2015)... has released a new blog post explaining how to ... fire damage. , Clients can now find auto insurance ... set intentionally on fire. This type of damages can be ... , It is possible to compare the best online ... , in just a few minutes. Clients should always review ...
(Date:4/18/2015)... Insuranceautoquote.info has released a new blog ... quotes . , Clients can review important auto ... online environment provides important advantages for clients who need ... who do not have coverage for their vehicles can ... day or hour. Many agencies offer important discounts and ...
(Date:4/18/2015)... (PRWEB) April 18, 2015 Thousand of ... on behalf of individuals who were allegedly harmed by ... to move forward in the U.S. District Court, Northern ... 10th, the Court has amended an earlier Case Management ... Among other things, the new amendment permits the claims ...
(Date:4/18/2015)... NE (PRWEB) April 18, 2015 ... in healthcare staffing, including physical therapy jobs, has ... at the South Carolina Physical Therapy Association Annual ... the Kroc Center in Greenville, SC. , ... opportunities, and exhibits with products and services. ...
(Date:4/17/2015)... 18, 2015 Heritage Woods of McLeansboro, ... Supportive Living Week Celebration on April 20 with a ... healthy mind, body and soul. , The community, which ... serves older adults of all incomes, including those on ... , Supportive Living Week is observed every April and ...
Breaking Medicine News(10 mins):Health News:Online Auto Insurance Quotes For Plans That Cover Fire Damages! 2Health News:Clients Can Review Car Insurance Quotes Online To Find Low Cost Offers! 2Health News:DePuy Pinnacle Hip Lawsuits: Federal Litigation Amends Case Management Order to Allow for Joinder of Unrelated Claims 2Health News:DePuy Pinnacle Hip Lawsuits: Federal Litigation Amends Case Management Order to Allow for Joinder of Unrelated Claims 3Health News:Healthcare Staffing Leader, Aureus Medical Group, to Exhibit at the South Carolina Physical Therapy Association Annual Conference 2Health News:Heritage Woods of McLeansboro Affordable Assisted Living to Celebrate Supportive Living Week 2Health News:Heritage Woods of McLeansboro Affordable Assisted Living to Celebrate Supportive Living Week 3
(Date:4/17/2015)... HILL, N.C. , April 17, 2015  Regulatory ... the newly released bipartisan discussion draft called "21 st ... document is planned to be taken up by Congress ... how pharmaceutical and medical device products are developed and ... For that reason, many companies have begun to consider ...
(Date:4/17/2015)... 2015 Inivata, a Cambridge, ... their presence at the 2015 American Association for Cancer Research ... Nitzan Rosenfeld and a poster presentation. Michael ... - 22 nd . The presentation, entitled ... , forms part of a session on Recent ...
(Date:4/17/2015)... April 17, 2015 ASSESS shows ...   is a viable alternative to tumour biopsy   ... all patients with advanced NSCLC   AstraZeneca today ... plasma circulating tumour DNA (ctDNA) testing for epidermal growth factor ... non-small cell lung cancer (NSCLC) in clinical practice. [ ...
Breaking Medicine Technology:21st Century Cures: A Regulatory Game-Changer for the Pharmaceutical Industry 2Inivata Co-founder Nitzan Rosenfeld to Present at AACR Annual Meeting 2"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 2"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 3"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 4
Cached News: