Navigation Links
Capping a two-faced particle gives duke engineers complete control
Date:8/11/2009

authors of a paper appearing online in the journal Advanced Materials. "We have created a novel Janus particle that can be manipulated or constrained with six degrees of freedom."

The researchers have dubbed the unique particles they created "dot-Janus" particles.

Using optical traps on dot-Janus particles, researchers controlled three degrees of movement up and down, left and right, forward and backward, while constraining one degree of rotation - side-to-side tilting. Using magnetic fields, they controlled the remaining two degrees of rotation - forward and backward tilting, and left and right turning.

"The solution was to create a particle with a small cap of cobalt that covers about a quarter of the particle," Erb said. He and Jenness conducted their research in the laboratory of Benjamin Yellen, Duke assistant professor of Mechanical Engineering and Materials Science. "This gave the particle just enough of a magnetic handle to allow it to be manipulated by magnetism without interfering with the optical tweezers."

The researchers said that the fabrication of these unique dot-Janus particles combined with the ability to control their orientation will have important ramifications in the burgeoning field of nanoengineering.

"Being able to more completely control these particles affords us a greater ability to measure the mechanical properties of biomolecules, including DNA," Yellen said. "It may also be possible to control the behavior of cells by manipulating dot-Janus particles attached to cell surfaces. These biological applications, as well as the ability to control the assembly of nanostructures, establish the broad scientific value of these findings."


'/>"/>

Contact: Richard Merritt
richard.merritt@duke.edu
919-660-8414
Duke University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Spectrum Announces New Distribution of AC-Powered Tool for Crimping and Decapping of Laboratory Vials - The CRIMPenstein™
2. Two-faced miniatures
3. Two-Faced Particles Act Like Tiny Submarines
4. Anesiva Grants Specific-Use License of Its Needle-Free Drug Delivery Technology to Particle Therapeutics for Diabetes Drug
5. Anthrax vaccine produces immunity with nanoparticles, not needles
6. CeloNova BioSciences Announces Worlds First Line of Fully Color-Coded Embolic Particles at CIRSE: Embozene(TM) Color-Advanced Microspheres
7. New DNA-based technique for assembly of nano- and micro-sized particles
8. New nanoparticle vaccine is more effective but less expensive
9. Anthrax vaccine produces immunity with nanoparticles, not needles
10. Sigma-Aldrich Introduces N-TER Nanoparticle siRNA Transfection System for Delivery of siRNA Into Difficult-to-Transfect Cell Types
11. Researchers outline structure of largest nonvirus particle ever crystallized
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Capping a two-faced particle gives duke engineers complete control
(Date:8/29/2014)... Livermore, California (PRWEB) August 29, 2014 ... Department of Energy's 2014 Hydrogen Production R&D ... photoelectrochemically -- by splitting water using sunlight. , ... Laboratory (NREL) and the University of Nevada, Las ... its work developing models of photoelectrochemical solar-hydrogen production ...
(Date:8/29/2014)... A major challenge before new biotechnology start-up ... of Boston-Cambridge, is gaining visibility that can lead to ... Director of Boston’s Adult Stem Cell Technology Center, LLC ... of his company an important priority since he started ... a social media marketing campaign launched earlier ...
(Date:8/28/2014)... 2014 SPIE Fellow Glenn Boreman, Professor ... Science and Director of the Center for Optoelectronics and ... Charlotte, and co-founder and Chairman of the Board of ... 2015 Vice President of SPIE, the international society for ... announced recent election results at the Annual General Meeting ...
(Date:8/28/2014)... Best Sanitizers, Inc., the first company ... sanitizer, asks food processors and food handling professionals to ... they’re currently using to Best Sanitizers’ Alpet® E3 ... to fighting cross-contamination and the spread of pathogens in ... are key criteria that make a hand sanitizer most ...
Breaking Biology Technology:Livermore Team Awarded for Hydrogen Production Research 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 2The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 3The Adult Stem Cell Technology Center, LLC Participates in Multiple Stem Cell and Regenerative Medicine Conferences Before Year End 4Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3
... Wisconsin landed a federal research laboratory too long, many observers might ... Madison in 1910 when Gifford Pinchot, the first chief of the ... National Wildlife Health Center , established in Madison in 1975, has ... race against bird flu. , ,The latest addition is the ...
... NimbleGen Systems scientist Thomas Albert will lead a ... microarray technology in DNA sequence analysis, the company announced. ... be the lead investigator on a two-year, $415,000 grant ... million Cancer Genome Atlas pilot project. , ,His work ...
... the scandals of WorldCom, ENRON, and TYCO were heartless and greedy, ... on this video make them look like saints. Why? Because the ... make a living to support their families. , ,Think about all ... of years that have not been able to find a good ...
Cached Biology Technology:Federal bioenergy lab will give Wisconsin a chance to shine 2Federal bioenergy lab will give Wisconsin a chance to shine 3Federal bioenergy lab will give Wisconsin a chance to shine 4A disgusting video: U.S. companies sell out Americans 2A disgusting video: U.S. companies sell out Americans 3A disgusting video: U.S. companies sell out Americans 4
(Date:9/2/2014)... When you accidentally touch a hot oven, you rapidly ... neural circuits involved in sensing and responding to such ... players. , Duke researchers have made a surprising discovery ... pain in worms, and have built a structural model ... Nature Communications , may help direct new strategies ...
(Date:9/1/2014)... the U.S. diet showed some modest improvement in the ... in the consumption of unhealthy trans fats, but the ... and the poor. , , An unhealthy diet is ... Eating a healthy diet is an important part of ... trends in diet quality is important because it can ...
(Date:9/1/2014)... the alteration of a single nucleotidethe basic building block of DNAcould ... disability. The study appears in The Journal of Cell ... by a defect in a gene on the X chromosome called ... 230 women and 1 in 360 men carry a so-called premutation, ... the FMR1 gene is slightly longer than normal. These ...
Breaking Biology News(10 mins):Surprising new role for calcium in sensing pain 2Surprising new role for calcium in sensing pain 3Quality of US diet improves, gap widens for quality between rich and poor 2Quality of US diet improves, gap widens for quality between rich and poor 3A nucleotide change could initiate fragile X syndrome 2
... University today announced a partnership to advance the use ... alternative energy source. The effort involves entrepreneurs John ... biodiesel in Afghanistan as a means to achieve multiple ... a new, sustainable economy in the country. ...
... understand the effects of climate change on the microbial ... and the tundra in Alaska, a University of Oklahoma ... of Energy grant. According to Jizhong Zhou, OU ... Institute for Environmental Genomics, the results of these studies ...
... demand for naturally raised beef continues to increase, researchers ... raised beef can be produced effectively for this niche ... to cover additional production and transportation costs. Naturally ... traditional systems take advantage of technologies the industry offers ...
Cached Biology News:Syracuse University partners with Arden-Fox to advance DOD's Net Zero Energy Initiative 2Syracuse University partners with Arden-Fox to advance DOD's Net Zero Energy Initiative 3Can naturally raised beef find its place in the industry? 2
... The product contains 5 ... coated with the monoclonal BerEP4 ... EpCAM (epithelial cell adhesion molecule). ... samples of 2 x 10e7 ...
albumin from bovine serum (BSA), BODIPY® FL conjugate...
GFX PCR DNA,Gel Band Purif,100, 1 EA. Category: Nucleotide Sample Handling....
... Services are uniquely positioned to ... current competitive environment. Invitrogens experts ... express, purify, and characterize proteins ... Studies, Activity Assays, X-ray Crystallography, ...
Biology Products: