Navigation Links
DNA technique yields 3-D crystalline organization of nanoparticles
Date:1/30/2008

UPTON, NY - In an achievement some see as the "holy grail" of nanoscience, researchers at the U.S. Department of Energy's Brookhaven National Laboratory have for the first time used DNA to guide the creation of three-dimensional, ordered, crystalline structures of nanoparticles (particles with dimensions measured in billionths of a meter). The ability to engineer such 3-D structures is essential to producing functional materials that take advantage of the unique properties that may exist at the nanoscale - for example, enhanced magnetism, improved catalytic activity, or new optical properties. The research will be published in the January 31, 2008, issue of the journal Nature.

"From previous research, we know that highly selective DNA binding can be used to program nanoparticle interactions," said Oleg Gang, a scientist at Brookhaven's Center for Functional Nanomaterials (CFN), who led the interdisciplinary research team, which includes Dmytro Nykypanchuk and Mathew Maye of the CFN, and Daniel van der Lelie of the Biology Department. "But while theory has intriguingly predicted that DNA can guide nanoparticles to form ordered, 3-D phases, no one has accomplished this experimentally, until now."

As with the group's previous work, the new assembly method relies on the attractive forces between complementary strands of DNA - the molecule made of pairing bases known by the letters A, T, G, and C that carries the genetic code of living things. First, the scientists attach to nanoparticles hair-like extensions of DNA with specific "recognition sequences" of complementary bases. Then they mix the DNA-covered particles in solution. When the recognition sequences find one another in solution, they bind together to link the nanoparticles.

This first binding is necessary, but not sufficient, to produce the organized structures the scientists are seeking. To achieve ordered crystals, the scientists alter the properties of DNA and borrow some tech
'/>"/>

Contact: Karen McNulty Walsh
kmcnulty@bnl.gov
631-344-8350
DOE/Brookhaven National Laboratory
Source:Eurekalert

0

GOOD

Page: 1 2 3

Related biology technology :

1. New technique producing small things in large quantities
2. New DNA-based technique for assembly of nano- and micro-sized particles
3. NIH Announces Advanced Cell Technologys Single Cell Embryo Biopsy Technique as a Means to Derive Embryonic Stem Cells to be Considered for Federal Funding
4. New technique can be breakthrough for early cancer diagnosis
5. University of Leicester scientists discover technique to help friendly bacteria
6. Glycominds Joins Biomolecular Photonic (BMP) Consortium to Develop New Molecular Imaging Technique
7. Doping technique brings nanomechanical devices into the semiconductor world
8. Cardica and Intuitive Surgical to Host Educational Symposium on Advanced Techniques and Technologies in Robotic Coronary Revascularization and Mitral Valve Repair
9. Collaboration yields the right glasses for observing mystery behavior in electrons
10. KAPE to Honor High-Performing Pennsylvania Organizations
11. Sunesis Pharmaceuticals Announces Reorganization to Focus Resources and Build Value in Clinical-Stage Programs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2008)... CARLOS, Calif., Dec. 2 SleepQuest...lued accreditation from the Joint Commission on th...HO) by demonstrating compliance,with national sta... "In becoming accredited, SleepQuest was evaluate...t Commission,s home care service survey team,",sa...
(Date:12/2/2008)...UMBIA, Md., Dec. 2 Marte...ced that it intends to release the results of its ..., 2008, at approximately 4:00 p.m. Eastern Time (E... will conduct a conference call to discuss these r... listen to the call live via webcast by visiting M...
(Date:12/2/2008)...Track to File NDA with FDA in Early to Mid-2009 ,...FirstCall/ -- Strativa Pharmaceuticals, the propri...anies, Inc. (NYSE: PRX ) today announced that it...ccessful completion of all pivotal bioequivalence .... The ondansetron thin film product is being devel...
(Date:12/2/2008)... DIEGO, Dec. 2 BrainCells Inc. (BC...tform technology to identify and,develop compound...reatment of,central nervous system (CNS) diseases...mpson to its board of directors. Thompson is a vet...ar tenure at Eli Lilly and Co. where he,focused o...
Breaking Biology Technology:SleepQuest Achieves Coveted Accreditation 2Strativa Pharmaceuticals Announces Successful Completion of Bioequivalence Studies for Ondansetron Thin Film 2Strativa Pharmaceuticals Announces Successful Completion of Bioequivalence Studies for Ondansetron Thin Film 3Strativa Pharmaceuticals Announces Successful Completion of Bioequivalence Studies for Ondansetron Thin Film 4BrainCells Inc. Appoints David E. Thompson to Its Board of Directors 2BrainCells Inc. Appoints David E. Thompson to Its Board of Directors 3
...W. Turek and Guy C. Le Breton, Department of Pharm...ege of Medicine, Chicago, IL 60612.,Address corr... Department,of Pharmacology M/C 868, University ...l: jturek1@icarus.uic.edu , , ...mboxane A 2 (TXA 2 ) receptor, in addition to its...
.... Crispin,* Ru Chen,* Michael B. Kimmey,** Teresa ...s of Pathology and , **Medicine, Divisio...eattle, , Washington. , , ...is the fourth leading cause of cancer death in the...he time of diagnosis, 9699% of , patients...
...ller and Theresa Redila-Flores , Bio-Rad... , Introduction , Denat...f several methods , that can be used to s..., point mutations. In DGGE, the denaturin... of uniform temperature and a linear denaturant ...
... Introduction , The macular region of t...r , vision and most of the high, ..., known as the macula , lutea, or yellow ...f two closely-related compounds, lutein and zeaxan... dihydroxy-a-carotenes which differ in the positi...
Other Biology Technology:Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 2Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 3Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 4Isolation of Low Molecular Weight Digestion Products of the Human Platelet Thromboxane A2 Receptor, Rev A 5Detection of Mutant K-ras in a Kindred With Hereditary Pancreatic Cancer by DGGE 2Detection of Mutant K-ras in a Kindred With Hereditary Pancreatic Cancer by DGGE 3DGGE Analysis Using the DCode System, Rev B 2DGGE Analysis Using the DCode System, Rev B 3Purification of the Components of Human Macular Carotenoid-Binding Complex, , Rev A 2Purification of the Components of Human Macular Carotenoid-Binding Complex, , Rev A 3
(Date:12/1/2008)...mber 2008 - The International Atomic Energy Agency... plant breeding technique that could bolster effor...hunger trap. , IAEA scientists use radiation to ...o harsh climate conditions such as drought or floo...nsect pests. Called mutation induction, the techni...
(Date:12/1/2008).... Scientists around the world may benefit from a ...that will help them to home in on the parts of pro... Sidow, PhD, associate professor of pathology and ...edicine, recently launched the novel bioinformatic...termining the role different proteins play in a wi...
(Date:12/1/2008)...la. The University of Florida, keeper of the worl... national records collection for another toothy ma... long rostrum or "saw" that makes it a popular cur...ome a historical and cultural icon that is rapidly...gist and curator of both the International Shark A...
(Date:12/1/2008)...if. For their landmark research leading to the de...farmers in flood-prone areas worldwide, Julia Bai... Davis and David Mackill of the International Ri...onored by the U.S. Department of Agriculture (USDA...Discovery Award. , The three scientists are, or ...
Breaking Biology News(10 mins):Nuclear science for food security 2Powerful online tool for protein analysis provided pro bono by Stanford geneticist 2Powerful online tool for protein analysis provided pro bono by Stanford geneticist 3Endangered sawfish focus of national collection and recovery efforts 2UC Riverside rice geneticist receives high honor from US Department of Agriculture 2UC Riverside rice geneticist receives high honor from US Department of Agriculture 3Lifespring Health Sponsors the 30th Annual Napa Valley Marathon in an Effort to Promote Health and Fitness in the Northern California Community 12776 1AUDIO from Medialink and Transitions 3A Understanding the Dangers of UV Rays 12772 1HIV Drug in Microbicide Gel Safe for Daily Use 12771 1HIV Drug in Microbicide Gel Safe for Daily Use 12771 2Health Groups Launch Ad Campaign Supporting 70 Cent Increase in Kentucky Cigarette Tax 12768 1Health Groups Launch Ad Campaign Supporting 70 Cent Increase in Kentucky Cigarette Tax 12768 2
...archers have developed a "biobullet" that could he...S. waterways for nearly two decades clogging water...pecies and causing billions of dollars in industri...xins that dissolve within a zebra mussel,s digesti...liminating one of the world,s "most important econ...
...vings from sawmills can be used to produce an orga...containers. Moreover, this substrate has the advan...than other, imported ones such as peat or coconut ... the Public University of Navarre who, jointly wit...veloped this substrate material. The product has a...
...t The University of Manchester have created a new ...ronment for culturing cells in 3D, as published in...e gel is the first pH neutral material made from c...o provide an environment in which cells can be cul... the gel mimics the properties of cell scaffolds w...
... of human DNA have different structures that are t...ern Medical Center researchers have found in a stu...e study ?published in the Feb. 3 issue of the jour...ich are capped by segments called telomeres. Each ... they become too short, the aging cell can no long...
Other Biology News:'Biobullets' fight harmful mussels 2New organic substrate 2Manchester scientists create new bio-gel for 3D cell culture 2DNA end caps may lead to cancer treatments, UT Southwestern researchers report 2
Adjustable tilt angle 0 to 20 Adjustable speed of 3-25 RPM Load capacity: 2.7 kg (6 lbs.) Ambient temperature range 4C to 65C Low voltage power is supplied by wall mount transformer
Collected from sexually mature rats.
Request Info
Zymoclean Gel DNA Recovery Kit from Zymo Research
Biology Products: