Navigation Links
Researchers make long DNA 'wires' for future medical and electronic devices

doing nanotechnology using only a piece of rubber and a tiny droplet of DNA solution," Guan said.

Computer chips that bridge the gap between the electronic and the biological could make detection of certain chemicals easier, and speed disease diagnosis. But first, researchers must develop technologies to mass produce DNA circuits as they produce chip circuits today.

The technique that Lee and Guan used is similar to a relatively inexpensive chip-making technology called soft lithography, where rubber molds press materials into shape.

In this study, they arranged the DNA into rows of "stitches," pinstripes and criss-cross shapes.

The pinstripes presented the researchers with a mystery: for some reason, thorn-like structures emerged along the strands at regular intervals.

"We think the 'thorns' may be used as interconnects between nanowires, or they could connect the nanowires with other electronic components," Guan said. "We are not trying to eliminate them, because we do not think they are defects. We also believe their formation is controllable, because they are almost completely absent in some experiments but abundant in others. Although we currently do not know exactly how the thorns form, maybe new and useful nanostructures may be created if we can better understand and control this process."

The university will license the technology for further development. Lee and Guan are working on their first application ?building the wires into sensors for detecting disease biomarkers. In the meantime, they are collaborating with researchers in the Department of Electrical and Computer Engineering at Ohio State to measure the electrical properties of the DNA wires. They are also using this technique to produce DNA-based nanoparticles for gene delivery.


'"/>

Source:Ohio State University


Page: 1 2

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. Researchers reveal the infectious impact of salmon farms on wild salmon
5. Researchers identify target for cancer drugs
6. Researchers discover molecule that causes secondary stroke
7. Researchers find missing genes of ancient organism
8. Researchers trace evolution to relatively simple genetic changes
9. Researchers add new tool to tumor-treatment arsenal
10. UF Researchers Map Bacterial Proteins That Cause Tooth Loss
11. VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain
Post Your Comments:
(Date:9/30/2014)... release is available in German . ... among the most expensive foods in the world. Because they ... them. But the distinctive smell of truffles is not only ... scientists under the direction of the Goethe University Frankfurt have ... by soil bacteria which are trapped inside truffle fruiting bodies. ...
(Date:9/30/2014)... new research, involving mice and published in the October ... Biology , suggests that just because you can ... a team of Italian scientists have found that using ... the immune system. This damage may result in autoimmune ... inflammatory bowel disease and rheumatoid arthritis in adulthood. , ...
(Date:9/30/2014)... your doctor to know what goes wrong with your muscles ... to know what "normal" actually is. That,s where a new ... FASEB Journal comes in. In the ... set of molecules that can help scientists "see" which genes ... more, they found never-before-detected gene activity and that men have ...
Breaking Biology News(10 mins):On the trail of the truffle flavor 2Adolescent exposure to thc may cause immune systems to go up in smoke 2Scientists identify which genes are active in muscles of men and women 2
... altitude isn,t the only thing that dropstheir blood pressure ... in up to half of those astronauts on short-term ... astronauts after long-term missions (four to six months). A ... Journal ( http://www.fasebj.org ) solves the biological mystery ...
... Elbe are not a common sight. Yet 1.8 million years ... mega-fauna such as woolly mammoths and giant cave bears bestrode ... that the changing climate during the Pleistocene Era may have ... them to warmer climes. "Species of hippo ranged across ...
... Data publishers should have the option of submitting ... discussion paper commissioned by the Global Biodiversity Information Facility ... of recommendations made by Mark Costello and co-authors in ... advancing biodiversity data publication , freely available for ...
Cached Biology News:Why astronauts experience low blood pressure after returning to Earth from space 2Did the changing climate shrink Europe's ancient hippos? 2Peer review option proposed for biodiversity data 2
(Date:10/1/2014)... 1, 2014 Pfanstiehl has announced the ... manufactured in the USA ... been recognized for playing a key role in ... of evidence that media supplementation with mannose can ... glycosylation," according to Dr. Christopher Wilcox , ...
(Date:10/1/2014)... 2014 The participants committed to not ... spending their own time adjusting, tweaking and testing virtual ... were ready for judging. , “I enjoyed being involved ... leader. “The entries showed a commendable range exploring ... of the print medium and the creativity of the ...
(Date:10/1/2014)... CA (PRWEB) September 30, 2014 ... user-friendly, cost-effective tools to address sales, training and ... has developed innovative mobile applications to turn ... outlining the agency’s latest customized mobile app creations, ... http://www.studiopmg.com/work . , In partnership with Toyota, StudioPMG ...
(Date:10/1/2014)... MA (PRWEB) September 30, 2014 ... SoundConnect announces four new-hosted collaboration bundles ... bundles deliver high quality conferencing experiences for low, ... packages to choose from, businesses have optimized solutions ... bundled solutions include audio only minutes (1K, ...
Breaking Biology Technology:Pfanstiehl Launches cGMP-produced Mannose for Cell Culture Media Optimization & Glycoprotein Biosynthesis 2Array Architects Challenges Staff to Create with 3D Printer 2Digital Agency Studio PMG Launches New Case Studies on Website 2SoundConnect Launches New Audio, Web and Video Bundles 2
... heard about the merits of electronic medical records and other healthcare ... make of the industry's electronic push? Marty Preizler, president and CEO ... much the same way and he explains why in Part I ... of the interview are as follows: , , WTN: ...
... - Jan Eddy, an entrepreneur who built and rebuilt ... Seize the Day award, which will be presented June 13 ... ,Eddy, who has overcome business and personal health challenges in ... conference luncheon at the Milwaukee Hyatt Regency. , ,Eddy, who ...
... the Milwaukee Brewers have used their minor-league system ... to join the major leagues of venture investing by building ... milestone with the news that Wisconsin has surpassed the $100 ... new report compiled by NorthStar Economics , the ...
Cached Biology Technology:Visions: Preizler offers insurer's perspective on healthcare IT 2Visions: Preizler offers insurer's perspective on healthcare IT 3Visions: Preizler offers insurer's perspective on healthcare IT 4Visions: Preizler offers insurer's perspective on healthcare IT 5Visions: Preizler offers insurer's perspective on healthcare IT 6Visions: Preizler offers insurer's perspective on healthcare IT 7Wisconsin building toward the major leagues of venture capital 2Wisconsin building toward the major leagues of venture capital 3
The PxE Thermal Cycler (PxE) is a licensed 96 well PCR machine, developed to provide all fundamental features for value for money thermal cycling....
PxE thermal Cycler. 0.5ml block holds 48 0.5 ml tubes or 96 0.3 ml tubes. Adjustable height heated lid. Outstanding uniformity. Advanced control algorithms for reduced reaction times. User frien...
0.2ml Gradient Block MBSR. Robot compatible block ejection mechanism. Stackable. (96 well block - holds 1 plate 0.2ml x 96 well plate)...
A Highly Purified, Cost-Effective Taq DNA Polymerase...
Biology Products: