Home > Press > Graphene and DNA team up to sense trouble
 |
| An illustration of how fluorescent-tagged DNA interacts with functionalized graphene. Both single-stranded DNA (A) and double-stranded DNA (B) are adsorbed onto a graphene surface, but the interaction is stronger with
ssDNA, causing the fluorescence on the ssDNA to darken more. C) A complementary DNA nears the ssDNA and causes the adsorbed ssDNA to detach from the graphene surface. D) DNA adsorbed onto graphene is protected from being broken down.
|
Abstract:
Just as in formulaic geek-tough guy buddy movies, nobody was convinced that delicate single-stranded DNA could work with graphene, a tough nanomaterial made of sheets of carbon atoms.
Graphene and DNA team up to sense trouble
Posted on June 23rd, 2010
However, scientists at DOE's Pacific Northwest National Laboratory and Princeton University believed the two would make a great team for detecting diseases using blood, saliva, and other biological fluids. And, just like in the movies, DNA and graphene really get the job done. Through a series of studies at DOE's EMSL, the team found that the single-stranded DNA picks out biomolecules that indicate disease with a high degree of specificity. The graphene protects the DNA from being broken down by enzymes while it works. This research could lead to stable biosensors that are more accurate than conventional sensors and for application in gene therapy. PNNL's Transformational Materials Science Initiative funded this study.
####
For more information, please click here
Contacts:
Kristin Manke
509.372.6011
Copyright © DOE Pulse
If you have a comment, please
Contact us.
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
News and information
Conference Scheduled June 5-7 on Safe Use of Nanotechnology in Environmental Remediation May 23rd, 2013
Heinrich Rohrer dies at 79; a father of nanotechnology: With IBM colleague Gerd Binnig, Rohrer invented the scanning tunneling microscope, which can show individual atoms on a surface and move them around May 23rd, 2013
Gold nanocrystal vibration captured on billion-frames-per-second film May 23rd, 2013
Glowing Plant Releases Maker Kit, Enabling Anyone to Make a Glowing Plant at Home: Glowing Plant seeks funds via crowdfunding and raises almost $400,000 May 23rd, 2013
Govt.-Legislation/Regulation/Funding/Policy
Gold nanocrystal vibration captured on billion-frames-per-second film May 23rd, 2013
Weird science: Crystals melt when they're cooled May 22nd, 2013
Whirlpools on the Nanoscale Could Multiply Magnetic Memory: At the Advanced Light Source, Berkeley Lab scientists join an international team to control spin orientation in magnetic nanodisks May 22nd, 2013
Atomic-Scale Investigations Solve Key Puzzle of LED Efficiency: MIT and Brookhaven Lab scientists use electron microscopy imaging techniques to settle a solid-state controversy and raise new experimental possibilities May 22nd, 2013
Possible Futures
Lifeboat publishes its first book: The Lifeboat Foundation has published its first book, "The Human Race to the Future: What Could Happen -- and What to Do" May 14th, 2013
UC Santa Barbara History Professor's Book Elucidates, Celebrates ‘Visioneers' May 14th, 2013
Conceptual Nanomedical Lipofuscin Removal Strategy April 29th, 2013
The Global Desalination Market 2013-2023 April 24th, 2013
Academic/Education
Inaugural Baccalaureate Class Among CNSE Graduates to Pursue Opportunities in New York: Half of undergrads from pioneering class to seek graduate degrees at CNSE; majority of master’s and doctoral degree recipients land high-tech jobs in state’s emerging nanotech industry May 16th, 2013
Anasys reports on University of Illinois study of near-field behavior of semiconductor plasmonic microparticles using AFM-IR published in APL May 14th, 2013
The University of Wyoming uses Nanoparticle Tracking Analysis to characterize nanoparticles in natural environments May 14th, 2013
Nanotechnology Pioneer Named 'Entrepreneur of the Year': Royal Society of Chemistry honors Chad Mirkin for commercializing innovations May 10th, 2013
Nanomedicine
UofL scientists uncover how grapefruits provide a secret weapon in medical drug delivery May 22nd, 2013
Single-Cell Transfection Tool Enables Added Control for Biological Studies: McCormick researchers develop method of delivering molecules into targeted cells May 22nd, 2013
How Gold Nanoparticles Can Help Fight Ovarian Cancer May 21st, 2013
MU Researchers Develop Radioactive Nanoparticles that Target Cancer Cells: This is an early step toward developing therapies for metastasized cancers, MU scientist says May 21st, 2013
Announcements
Conference Scheduled June 5-7 on Safe Use of Nanotechnology in Environmental Remediation May 23rd, 2013
Heinrich Rohrer dies at 79; a father of nanotechnology: With IBM colleague Gerd Binnig, Rohrer invented the scanning tunneling microscope, which can show individual atoms on a surface and move them around May 23rd, 2013
Gold nanocrystal vibration captured on billion-frames-per-second film May 23rd, 2013
Glowing Plant Releases Maker Kit, Enabling Anyone to Make a Glowing Plant at Home: Glowing Plant seeks funds via crowdfunding and raises almost $400,000 May 23rd, 2013
Nanobiotechnology
Bacterial spare parts filter antibiotic residue from groundwater May 22nd, 2013
Single-Cell Transfection Tool Enables Added Control for Biological Studies: McCormick researchers develop method of delivering molecules into targeted cells May 22nd, 2013
Researchers Perform Fastest Measurements Ever Made of Ion Channel Proteins May 20th, 2013
Artificial Forest for Solar Water-Splitting: Berkeley Lab Researchers Report First Fully Integrated Artificial Photosynthesis Nanosystem May 17th, 2013