Navigation Links
Graphene may hold key to speeding up DNA sequencing
Date:9/10/2010

Cambridge, Mass. - September 9, 2010 - In a paper published as the cover story of the September 9, 2010 Nature, researchers from Harvard University and MIT have demonstrated that graphene, a surprisingly robust planar sheet of carbon just one-atom thick, can act as an artificial membrane separating two liquid reservoirs.

By drilling a tiny pore just a few-nanometers in diameter, called a nanopore, in the graphene membrane, they were able to measure exchange of ions through the pore and demonstrated that a long DNA molecule can be pulled through the graphene nanopore just as a thread is pulled through the eye of a needle.

"By measuring the flow of ions passing through a nanopore drilled in graphene we have demonstrated that the thickness of graphene immersed in liquid is less then 1 nm thick, or many times thinner than the very thin membrane which separates a single animal or human cell from its surrounding environment," says lead author Slaven Garaj, a Research Associate in the Department of Physics at Harvard. "This makes graphene the thinnest membrane able to separate two liquid compartments from each other. The thickness of the membrane was determined by its interaction with water molecules and ions."

Graphene, the strongest material known, has other advantages. Most importantly, it is electrically conductive.

"Although the membrane prevents ions and water from flowing through it, the graphene membrane can attract different ions and other chemicals to its two atomically close surfaces. This affects graphene's electrical conductivity and could be used for chemical sensing," says co-author Jene Golovchenko, Rumford Professor of Physics and Gordon McKay Professor of Applied Physics at Harvard, whose pioneering work started the field of artificial nanopores in solid-state membranes.

"I believe the atomic thickness of the graphene makes it a novel electrical device that will offer new insights into the physics
'/>"/>

Contact: Michael Patrick Rutter
mrutter@seas.harvard.edu
617-496-3815
Harvard University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Engineers develop method to disperse chemically modified graphene in organic solvents
2. 24-carat gold snowflakes improve graphenes electrical properties
3. Rice researchers make graphene hybrid
4. Graphene oxide gets green
5. First step toward electronic DNA sequencing: Translocation through graphene nanopores
6. White graphene to the rescue
7. Systems biology brings hope of speeding up drug development
8. Complete Genomics launches, becomes worlds first large-scale human genome sequencing company
9. UC San Diego and Genentech scientists develop potentially disruptive antibody sequencing technology
10. Sequencing of sorghum genome completed
11. Complete Genomics releases proof-of-concept data for its sequencing technology for the first time
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Graphene may hold key to speeding up DNA sequencing
(Date:1/22/2015)... 2015 , Europe,s ... The European Patent Office to present a video retrospective of the ... be featured: Christofer Toumazou and Sophie Wilson   ... winners of the Award   Starting on 22 January ...
(Date:12/24/2014)... NEW YORK , Dec. 23, 2014  Since its launch in ... of people to eliminate the pain of trying to remember ... their own biometrics fused to their smartphones. To assist people ... Labs , the company that created 1U and focuses on ...
(Date:12/19/2014)... 18, 2014 Research and Markets ( http://www.researchandmarkets.com/research/8kmfcn/iphone_5s ... 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - ... http://photos.prnewswire.com/prnh/20130307/600769 Following the ... fingerprint reading feature with the iPhone 5S. It is ...
Breaking Biology News(10 mins):Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 31U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2
... to rethink their fall tree plantings. Warming temperatures have ... planting guidelines obsolete, according to Dr. Nir Krakauer, assistant ... New York,s Grove School of Engineering. Professor ... in the United States that takes rapidly rising temperatures ...
... whales have the longest menopause of any non-human species - to ... and York and published in the journal Science (14 ... the death of his mother means an almost 14-fold-increase in the ... for the menopause remains one of nature,s great mysteries and very ...
... Research Careers) Program has announced the travel award recipients ... (ASBMR) Annual Meeting in Minneapolis, MN from October 12-16, ... entry of underrepresented minority students, postdoctorates and scientists into ... encourage the participation of young scientists at the 2012 ...
Cached Biology News:Warmer temperatures make new USDA plant zone map obsolete 2Long menopause allows killer whales to care for adult sons 2Long menopause allows killer whales to care for adult sons 3
(Date:1/22/2015)... The laboratory information management systems market is a rapidly ... advancements due to factors such as rising pressure to ... systems, and increasing government support for adoption of HCIT ... in the market focus on technological advancements to further ...
(Date:1/22/2015)... 22, 2015 zFlo Motion , a ... announce an exciting product from a new partner. STT-Systems ... over the past 15 years, with offerings in the optical-motion ... 3D IMU system (inertial measurement unit), iSen, is opening eyes ...
(Date:1/22/2015)... 22, 2015 Diagenode, Inc., a ... the Bioruptor® and complete solutions for epigenetics research, ... immunoprecipitation, alleviating the need for manual processing. The ... for ChIP of histones or transcription factors and ...
(Date:1/22/2015)... 22, 2015   GenoSpace , a precision medicine software company ... the broad use of genomic, imaging and other biomedical data ... Michelle Munson , CEO of Aspera, an IBM Company, ... - http://photos.prnewswire.com/prnh/20150122/170713 "We are pleased ...
Breaking Biology Technology:Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 2Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 3Laboratory Information Management Systems Market is Expected to Reach $1,323.6 Million by 2019 - New Research Report by MarketsandMarkets 43D Motion Capture Just Got Easy 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2GenoSpace Expands Board with Appointment of Michelle Munson 2
... Sept. 14 BioSpecifics Technologies Corp. (Nasdaq: ... collagenase-based products, today announced that BioSpecifics, President, Tom Wegman, ... Conference on Monday, September 20, 2010, at 7:30am ET ... City. A live webcast of the presentation ...
... a leading domain name development company, will release a list ... off on September 16, at 1:30 pm at the ... domain auction is part of the inaugural Epik.com Domain ... live auction event is open to the public. ...
... N.J., Sept. 14 Innophos Holdings, Inc. (Nasdaq: ... announced that Randy Gress, Chief Executive Officer, will address the ... 30, 2010 at 8:00 a.m. (Eastern Time).   ... please go to www.innophos.com Investor Relations Events section. ...
Cached Biology Technology:DNASequencing.com and a Portfolio of 318 'Genetic' Domain Names to be Auctioned Off at Epik.com Domain Development Conference 2
... in your 35mm dish without transferring ... Chamber has separate openings for solution ... fluctuations of the liquid level in ... from entering the chamber. An adjustable ...
... Five cells (BTI-TN-5B1-4) derived from Trichoplusia ... shown to be capable of expressing ... proteins compared to other insect cells. ... features:- -Rapid doubling time as adherent cultures- Quick ...
... steadylite plus assay system offers ... sensitivity, Designed for batch-processing systems, ... higher density microplates such as ... free, Convenient storage conditions ( ...
... This kit consists of universal lysis buffer, ... primers for 100 25 l volume PCR ... of Gram negative or positive rod and ... Pneumoniae, Bacillus Cereus, Staphylococcus Aureus, Streptococcus Agalactiae, ...
Biology Products: