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

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:8/1/2014)... transport of light is the photonic analog of topological ... case, the current flows around the edge of the ... "topological" in that even if electrons encounter impurities in ... losing energy., In the ... regular material but in a meta-material consisting of an ...
(Date:8/1/2014)... , Aug. 1, 2014 Research ... "The World Market for Flow Cytometry in ... http://photos.prnewswire.com/prnh/20130307/600769 ... are now an important component of advanced IVD ... instruments for cancer diagnostics, but their newer clinical ...
(Date:8/1/2014)... One of the major revolutions taking place ... is the practice of using genomic and other molecular ... biology. Personalized diagnostics—laboratory analyses that inform the practice of ... future. This fall, AACC ,s first ever ... this exciting field and the novel technologies driving it ...
(Date:8/1/2014)... 2014 Once a decision has been ... webinar will discuss how to define your tolerance for ... Bob Allen, Senior Director of Facilities Integration at Fluor ... Fluor Industrial Services, and special guest Carrier Li, Director ... Amgen, as they provide an examination of the Conceptual ...
Breaking Biology Technology:On-chip topological light 2On-chip topological light 3The World Market for Flow Cytometry in IVD Applications 2First-Ever AACC Virtual Conference to Focus on Personalized Diagnostics 2Defining Low Cost in Your Solution for Future Facilities, New Webinar for Pharma, Biotech, Medical Device and Healthcare Companies, Hosted by Xtalks 2
... Solos Endoscopy, Inc. (Pink Sheets: SNDY) is pleased ... agreement with Lifeline Biotechnologies, Inc. (Pink Sheets: LLBO) ... to Lifeline Biotechnologies for a combination of stock, ... Endoscopy originally purchased the products from Lifeline Biotechnologies ...
... plc (LSE: SHP, NASDAQ: SHPGY ) announces ... Court of the Southern District of,New York against Mylan ... for infringement of Shire,s,patent: U.S. Patent No. 5,968,976 (",976 ... filed in response to an Abbreviated New Drug Application,("ANDA") ...
... 20 A new, innovative study,shows that a ... plus dexamethasone not only prevents chemotherapy-induced nausea,and vomiting ... oncology,patients. Data presented today at the ESMO Symposium ... New data presented today at ...
Cached Biology Technology:Solos Endoscopy, Inc. Sells Ovascope and Mastascope Product Line to Lifeline Biotechnologies, Inc. 2Shire Files Lawsuit Against Mylan for Infringement of FOSRENOL(R) (Lanthanum Carbonate) Patent 2Shire Files Lawsuit Against Mylan for Infringement of FOSRENOL(R) (Lanthanum Carbonate) Patent 3Palonosetron Warrants Adequate Caloric Intake in Oncology Patients Receiving High Emetogenic Chemotherapy 2Palonosetron Warrants Adequate Caloric Intake in Oncology Patients Receiving High Emetogenic Chemotherapy 3Palonosetron Warrants Adequate Caloric Intake in Oncology Patients Receiving High Emetogenic Chemotherapy 4
(Date:7/31/2014)... available in German . ... gases similar to a sponge that soaks up liquids. ... hydrogen or greenhouse gases. However, loading of many MOFs ... Technology (KIT) now report in Nature Communications ... MOF surface. This can be prevented by water-free synthesis ...
(Date:7/31/2014)... the photovoltaic effect in 1839, humankind has sought to ... its own purposes. In a new research report published ... FASEB Journal , scientists may have uncovered a ... focusing on a naturally occurring combination of lipids that ... over time and across speciessuggests that this specific natural ...
(Date:7/31/2014)... Professor of Clinical Surgery at LSU Health Sciences Center ... team of plastic and reconstructive surgeons who report a ... select patients for a specific surgical migraine treatment technique. ... surgery to decompress the nerves that trigger migraines experienced ... The study, which confirms the benefit of surgical treatment ...
Breaking Biology News(10 mins):Free pores for molecule transport 2Scientists shine bright new light on how living things capture energy from the sun 2Surgeons report significant migraine relief from cosmetic eyelid surgery technique 2
... disease ever eradicated. In two studies in the Dec. 15 ... scientists are working to ensure that once it is gone, ... immune systems were weakened by HIV would re-introduce poliovirus into ... switching forms of vaccine from a live, attenuated vaccine to ...
... for millennia, but there has been great controversy about ... Proceedings of the National Academies of Sciences, a team ... University of Wisconsin-Madison has for the first time demonstrated ... potato. , The scientists analyzed DNA markers in 261 ...
... Pumps implanted into the chest to maintain circulation can ... end-stage heart failure who are not candidates for heart ... led by Duke University Medical Center cardiologists. , The ... employed when the heart's left ventricle ?the chamber of ...
Cached Biology News:Polio vaccination strategies assessed as eradication nears 2Polio vaccination strategies assessed as eradication nears 3Finding rewrites the evolutionary history of the origin of potatoes 2Implantable pumps extend lives of patients too sick for transplant 2Implantable pumps extend lives of patients too sick for transplant 3
... Thermo has established an expertise in ... both for solid support synthesis and synthesis ... controlled by Mass Spectrometry and analytical HPLC ... provide products that meet the highest quality ...
The Wellwash 4 Mk 2 microplate washer combines flexibility, simplicity and ease of use. This reliable microplate washer meets the exacting standards of today's ELISA assay requirements....
... These handy dispensers save space and ... and other garb. They are the ... parts used in labs, processing and ... charges and the particles they attract. ...
... dispensers save space and organize ... and other garb. They are ... for small parts used in ... acrylic. Many other sizes and ...
Biology Products: