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

DURHAM, N.C. Scientists drew fittingly from Roman mythology when they named a unique class of miniscule particles after the god Janus, who is usually depicted as having two faces looking in opposite directions.

For years, scientists have been fascinated by the tantalizing possibilities of these particles for their potential applications in electronic display devices, sensors and many other devices. However, realizing these applications requires precise control over the positions and orientation of the particles, something which has until now eluded scientists.

Duke University engineers say they can for the first time control all the degrees of the particle's motion, opening up broad possibilities for nanotechnology and device applications. Their unique technology should make it more likely that Janus particles can be used as the building blocks for a myriad of applications, including such new technologies as electronic paper and self-propelling micromachines.

Typical Janus particles consist of miniscule spherical beads that have one hemisphere coated with a magnetic or metallic material. External magnetic or electric fields can then be used to control the orientation of the particles. However, this coating interferes with optical beams, or traps, another tool scientists use to control positioning.

The breakthrough of Duke engineers was to devise a fabrication strategy to coat the particle with a much smaller fraction of material. This discovery allows these particles to be compatible with optical traps and external magnetic fields, allowing for total control over the particles' positions and orientations.

"Past experiments have only been able to achieve four degrees of control using a combination of magnetic and optical techniques," said Nathan Jenness, a graduate student who completed his studies this year from Duke's Pratt School of Engineering. He and co-author Randall Erb, also a graduate student, were first
'/>"/>

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:10/22/2014)... North American crystal oscillator market report defines and segments ... of revenue. This market was valued at $531.4 million ... by 2018, at a CAGR of 3.3% from 2013 ... North American crystal oscillator market report, to get an ... a glimpse of the segmentation of the market, and ...
(Date:10/22/2014)... Currently offering a comprehensive portfolio ... Weighing, Rice Lake, and Ohaus, Pipette.com has added ... Sartorius CPA Semi-Micro Balance is ideal for lab ... user-friendly laboratory balance. , Sartorius is a global ... balances are well known for their high performance, ...
(Date:10/22/2014)... ROCKVILLE, Md. , Oct. 22, 2014   ... company developing novel pathogen-specific therapies for serious infections and ... Office has issued a Notice of Allowance for a ... product in its C. difficile program, SYN-004. This ... to SYN-004 in the U.S. and adds to the ...
(Date:10/22/2014)... HONG KONG , Oct. 22, 2014 ... enterprise, announced today that rare disease expert John ... president, research. Dr. McKew brings more than two decades ... at the National Institutes of Health, Wyeth Research and ... McKew will lead aTyr,s efforts to expand and translate ...
Breaking Biology Technology:The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 2The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 3The North American crystal oscillator market is expected to reach $623.6 million by 2018 - New Report by MicroMarket Monitor 4Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 2Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 2Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 3Synthetic Biologics Announces Allowance of Key U.S. Composition of Matter Patent for C. difficile Program 4aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3
... DIEGO, Jan . 8 Arena Pharmaceuticals, Inc. (Nasdaq: ... to present at the 27th Annual J.P. Morgan Healthcare Conference ... p.m. Eastern Time) at the Westin St. Francis Hotel in ... is scheduled to provide an overview of the company, including ...
... 8 Palomar Medical Technologies, Inc. (Nasdaq: ... of light-based systems for cosmetic treatments, today announced ... the Swedish company Q-MED AB (OMX Nordic Exchange, ... based in Uppsala, Sweden. The international distribution ...
... SAN DIEGO, Jan. 7 Volcano Corporation,(Nasdaq: ... sales of,products for the diagnosis and treatment of coronary ... its previously announced acquisition of,Axsun Technologies, Inc. , ... manufacturer of lasers and optical,engines used in medical Optical ...
Cached Biology Technology:Arena Pharmaceuticals to Present at the 27th Annual J.P. Morgan Healthcare Conference 2Arena Pharmaceuticals to Present at the 27th Annual J.P. Morgan Healthcare Conference 3Palomar and Q-MED AB Terminate International Distribution Agreement 2Palomar and Q-MED AB Terminate International Distribution Agreement 3Palomar and Q-MED AB Terminate International Distribution Agreement 4Palomar and Q-MED AB Terminate International Distribution Agreement 5Volcano Announces Closing of Axsun Technologies Acquisition 2
(Date:10/22/2014)... Inc. (NASDAQ: AWRE ), a leading supplier of ... third quarter ended September 30, 2014. Revenue for ... of 40% compared to $4.3 million in the same quarter ... was $4.1 million compared to $1.0 million in the third ... month period was primarily due to: i) a $1.0 million ...
(Date:10/18/2014)... genetic conditions, a certain type of exome sequencing method ... traditional molecular diagnostic methods, according to a study appearing ... to coincide with the American Society of Human Genetics ... region of the genome (the complete set of genes ... has been rapidly applied in research settings and recent ...
(Date:10/17/2014)... available in German . ... few drugs. When treating overdoses, doctors are often limited to ... if there is a combination of drugs involved. So what ... swallows his grandmother,s pills? ETH professor Jean-Christophe Leroux from the ... an answer to this question. "The task was to develop ...
Breaking Biology News(10 mins):Aware, Inc. Reports Third Quarter 2014 Financial Results 2Aware, Inc. Reports Third Quarter 2014 Financial Results 3Aware, Inc. Reports Third Quarter 2014 Financial Results 4Aware, Inc. Reports Third Quarter 2014 Financial Results 5Aware, Inc. Reports Third Quarter 2014 Financial Results 6Aware, Inc. Reports Third Quarter 2014 Financial Results 7Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Emergency aid for overdoses 2Emergency aid for overdoses 3
... better understanding of brain injury, a way to rejuvenate ... monitor their glaucoma at home, number among this years ... What surprises me every time I walk through ... involving so many NJIT graduate and undergraduate students, said ...
... French . , A new brain-imaging study by ... ghrelin - a stomach hormone, acts on specific regions of ... and eating for pleasure. This study, published in the ... understanding and treating obesity, a condition affecting millions world-wide. ...
... The potential of no-tillage (NT) soils for increasing the soil ... Most of the previous studies about SOC accrual in NT ... depth), and not for the whole soil profile. The lack ... to conclusively ascertain the effects of NT farming on SOC ...
Cached Biology News:NJIT applauds students for studies on brain injury, glaucoma and more 2Hunger hormone: Makes food more attractive 2Finding the real potential of no-till farming for sequestering carbon 2
MAb to Hu-IFN-Gamma RC2 (CD118), NON-Neutralizing, Clone MMHGR-2 Binds to but does not neutralize human interferon gamma receptor...
Recombinant Rat CINC-2 beta, CF...
SHEEP ANTI FLECAINIDE...
RAT ANTI MOUSE F4/80 ANTIGEN:BIOTIN Immunogen: Thioglycollate stimulated peritoneal macrophages from C57/BL mice...
Biology Products: