Navigation Links
Researchers find best routes to self-assembling 3-D shapes
Date:12/7/2011

embly of proteins and viruses and these polyhedra, which could provide insight into naturally occurring self-assembling processes and is a step toward the development of self-assembly as a viable manufacturing paradigm."

"This is about creating basic tools in nanotechnology," said Menon, co-corresponding author on the paper. "It's important to explore what shapes you can build. The bigger your toolbox, the better off you are."

While the approach has been used elsewhere to create smaller particles at the nanoscale, the researchers at Brown and Johns Hopkins used larger sizes to better understand the principles that govern self-folding polyhedra.

The researchers sought to figure out how to self-assemble structures that resemble the protein shells viruses use to protect their genetic material. As it turns out, the shells used by many viruses are shaped like dodecahedra (a simplified version of a geodesic dome like the Epcot Center at Disney World). But even a dodecahedron can be cut into 43,380 planar nets. The trick is to find the nets that yield the best self-assembly. Menon, with the help of Brown undergraduate students Margaret Ewing and Andrew "Drew" Kunas, sought to winnow the possibilities. The group built models and developed a computer code to seek out the optimal nets, finding just six that seemed to fit the algorithmic bill.

The students got acquainted with their assignment by playing with a set of children's toys in various geometric shapes. They progressed quickly into more serious analysis. "We started randomly generating nets, trying to get all of them. It was like going fishing in a lake and trying to count all the species of fish," said Kunas, whose concentration is in applied mathematics. After tabulating the nets and establishing metrics for the most successful folding maneuvers, "we got lists of nets with the best radius of gyration and vertex connections, discovering which nets would be the best for production fo
'/>"/>

Contact: Richard Lewis
Richard_Lewis@brown.edu
401-863-3766
Brown University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Researchers assess radioactivity released to the ocean from the Fukushima nuclear facility
2. Researchers reveal SBP8a configurations
3. Winning early-career researchers excel in entrepreneurship
4. Fraunhofer researchers receive the Franco-German Business Award 2011
5. Marine predators in trouble: UBC researchers
6. Researchers at GIS develop systematic approach for accurate DNA sequence reconstruction
7. 2 top biological imaging centers offer powerful free online tool to researchers and public
8. Adult stem cells use special pathways to repair damaged muscle, MU researchers find
9. Medical researchers in Canada and the US discover hidden side of prion diseases
10. Yale researchers develop a way to monitor engineered blood vessels as they grow in patients
11. NJIT researchers publish news of success with robots as learning tool
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Researchers find best routes to self-assembling 3-D shapes
(Date:9/1/2014)... has improved steadily in recent yearsspurred in large part ... poor and disparities continue to widen among socioeconomic and ... School of Public Health (HSPH). , "The study provides ... efforts by many groups and individuals to improve U.S. ... indicates that these efforts need to be expanded," said ...
(Date:9/1/2014)... that corals whose calcium-carbonate skeletons form the ... that rely entirely on ocean currents to deliver ... now scientists at MIT and the Weizmann Institute ... they are far from passive, engineering their environment ... enhance their ability to exchange nutrients and dissolved ...
(Date:9/1/2014)... It may be possible to train the brain ... according to new research by scientists at the Jean ... HNRCA) at Tufts University and at Massachusetts General Hospital. ... Diabetes , a brain scan study in adult men ... the addictive power of unhealthy food while also increasing ...
Breaking Biology News(10 mins):Quality of US diet shows modest improvement, but overall remains poor 2Quality of US diet shows modest improvement, but overall remains poor 3Nature's tiny engineers 2Nature's tiny engineers 3Training your brain to prefer healthy foods 2
... forces laboratory leukemia cells to commit cell suicide, according ... that within 24 hours, 76 percent of leukemia cells ... The investigators, who report their findings in the January ... a journal of the American Association for Cancer Research, ...
... who took beta carotene or vitamin C or E or ... cancer as women who did not take the supplements, according ... 30 online issue of the Journal of the National ... whose diets are high in fruits and vegetables, and thus ...
... new clinical trial suggests that long-term use of candesartan, ... reduce the symptoms of genetic heart disease. The ... candesartan on left ventricular hypertrophy and function in non-obstructive ... January issue of The Journal of Molecular Diagnostics ...
Cached Biology News:Grape-seed extract kills laboratory leukemia cells, proving value of natural compounds 2Vitamins C and E and beta carotene again fail to reduce cancer risk in randomized controlled trial 2
(Date:8/28/2014)... 28, 2014 “This kit has an improved ... from 0 to 150 ppb,” said Mark Tess, PhD, Mycotoxin ... benefit to plant owners and USDA-GIPSA inspection agencies that have ... Testing can take place in a matter of minutes with ... plant test the feed and grain before accepting it, but ...
(Date:8/28/2014)... Spin-charge converters are important devices in spintronics, an ... charge of electrons but also on their spin ... transformation of electric into magnetic signals and vice ... Sinova from the Institute of Physics at Johannes ... the UK, Prague, and Japan, has for the ...
(Date:8/28/2014)... The ability for organizations to attract top ... individuals to perform at the highest of levels, are ... to compete in this post–recession era. The pharmaceutical ... the sector increasingly focuses on the importance of employee-fit ... real results on the organization's development and the innovation ...
(Date:8/28/2014)...   SunTrust Robinson Humphrey (STRH) today ... its equity research team in biotechnology and oilfield ... equity research demonstrates our commitment to providing our ... their investment decision making," said Biff Woodruff ... to make significant investments in differentiated content at ...
Breaking Biology Technology:A new, tunable device for spintronics 2A new, tunable device for spintronics 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... - Listed companies to present at Therapeutic ... 2 Elsevier Business Intelligence and Windhover ... list. The list delivers projects and companies with high-value assets for ... in deals. This year,s list includes a Top 10 ...
... significantly improve the efficiency at which gallium nitride ... The devices are believed to be the first ... creation of an electrical charge in a piezoelectric ... mechanical strain to the microwires, researchers at the ...
... Oct. 31, 2011 Neurocrine Biosciences, Inc. (NASDAQ: NBIX ... 30, 2011. For the third quarter of 2011, ... fully diluted share outstanding, compared to net income of $3.3 million, ... in 2010. For the nine months ended September 30, 2011, the ...
Cached Biology Technology:Windhover Announces the "Top Biopharma Projects to Watch" 2Windhover Announces the "Top Biopharma Projects to Watch" 3Zinc oxide microwires improve the performance of light-emitting diodes 2Zinc oxide microwires improve the performance of light-emitting diodes 3Neurocrine Biosciences Reports Third Quarter 2011 Results 2Neurocrine Biosciences Reports Third Quarter 2011 Results 3Neurocrine Biosciences Reports Third Quarter 2011 Results 4Neurocrine Biosciences Reports Third Quarter 2011 Results 5Neurocrine Biosciences Reports Third Quarter 2011 Results 6Neurocrine Biosciences Reports Third Quarter 2011 Results 7Neurocrine Biosciences Reports Third Quarter 2011 Results 8
Multi-enzyme complex containing a wide range of carbohydrases, including arabanase, cellulase,b-glucanase, hemi-cellulase and xylanase Patent/trademark/license (electronic): A product of Novozyme Cor...
... The CopyControl™ vector can be induced ... These vectors provide the stability of single-copy ... cosmids or other cloning vectors. The kits ... (ligation reagents, insert size screening system) necessary ...
Screening test for the detection of Salmonella sp. by means of DNA amplification, subsequent molecular hybridization and detection on a microtitre plate....
... patented MasterAmp™ 10X PCR Enhancer (with ... allows improved sensitivity and specificity for ... MasterAmp PCR Enhancer in PCR eliminates ... melting, increases enzyme?s thermal stability, suppresses ...
Biology Products: