Navigation Links
Mixing nanoparticles to make multifunctional materials
Date:10/20/2013

.

For the particular composite of gold and magnetic nanoparticles they created, the scientists discovered that applying an external magnetic field could "switch" the material's phase and affect the ordering of the particles. "This was just a demonstration that it can be done, but it could have an application-perhaps magnetic switches, or materials that might be able to change shape on demand," said Zhang.

The third fundamental factor the scientists explored was how the particles were ordered in the superlattice arrays: Does one type of particle always occupy the same position relative to the other type-like boys and girls sitting in alternating seats in a movie theater-or are they interspersed more randomly? "This is what we call a compositional order, which is important for example for quantum dots because their optical properties-e.g., their ability to glow-depend on how many gold nanoparticles are in the surrounding environment," said Gang. "If you have compositional disorder, the optical properties would be different." In the experiments, increasing the thickness of the soft DNA shells around the particles increased compositional disorder.

These fundamental principles give scientists a framework for designing new materials. The specific conditions required for a particular application will be dependent on the particles being used, Zhang emphasized, but the general assembly approach would be the same.

Said Gang, "We can vary the lengths of the DNA strands to change the distance between particles from about 10 nanometers to under 100 nanometers-which is important for applications because many optical, magnetic, and other properties of nanoparticles depend on the positioning at this scale. We are excited by the avenues this research opens up in terms of future directions for engineering novel classes of materials that exploit collective effects and multifunctionality."


'/>"/>

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

Page: 1 2 3

Related biology technology :

1. Researchers use nanoparticles to deliver vaccines to lungs
2. UCLA researchers smartphone microscope can detect a single virus, nanoparticles
3. New nanoparticles make solar cells cheaper to manufacture
4. Gold nanoparticles improve photodetector performance
5. Penn researchers develop protein passport that help nanoparticles get past immune system
6. Widely used nanoparticles enter soybean plants from farm soil
7. Nanoparticles digging the worlds smallest tunnels
8. Lung mucus gel scaffold prevents nanoparticles from getting through
9. New imaging technique homes in on electrocatalysis of nanoparticles
10. New structural information on functionalization of gold nanoparticles
11. Gold nanoparticles could treat prostate cancer with fewer side effects than chemotherapy
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mixing nanoparticles to make multifunctional materials
(Date:12/19/2014)... BioPlus Specialty Pharmacy ... has an expanded team of Regional Pharmaceutical Care ... prescriber offices in their regions, with specific areas ... a variety of Regional Pharmaceutical Care Liaisons specializing ... hepatitis C help prescribers understand all the new ...
(Date:12/19/2014)... Reports from CDC show ... from one or more chronic health conditions - including ... address some of these diseases, but may not eliminate ... face. While implanted nerve stimulation devices today offer relief, ... which can induce side effects. , To eliminate ...
(Date:12/19/2014)... 18, 2014 With only 2 weeks ... special on Sartorius Biohit products . The product specials ... Picus Electronic Pipette Trade-in Program, and free pipette tips. ... officers around the world. They are ideal for lab ... include:, ,     Full volume range of 0.1 ...
(Date:12/19/2014)... NEW YORK , Dec. 18, 2014 ... novel therapies for the treatment of chronic pain, announced ... held today. "This was a transformational year ... a promising future for our company," said Sergio ... past year, we have executed on key financial, human ...
Breaking Biology Technology:BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 2BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 3Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2
... Switzerland, December 19 An exclusive license,for the ... for,lung infections in Cystic Fibrosis patients was signed ... Japan transferred relevant,rights to Axentis Pharma AG of ... to the licensed technology and a phase II ...
... . , By means of X-ray interferometers, lengths ... resolution of less than one nm. The low translation velocity ... difficult, could now be increased by a factor of 100 ... , X-ray interferometers can measure lengths in the mm range ...
... DuPont today congratulated,growers planting Pioneer(R) brand sorghum hybrids ... in the 2007 National Sorghum Producers, (NSP),Yield and ... Pioneer sorghum,hybrid 84G62., Farmers growing Pioneer sorghum ... segments. First-, second- and third-place national,honors were awarded ...
Cached Biology Technology:Cystic Fibrosis: License Agreement Boosts Development of Therapy Against Lung Infections 2Cystic Fibrosis: License Agreement Boosts Development of Therapy Against Lung Infections 3Faster X-ray interferometers due to single-photon interference 2DuPont Congratulates Growers Planting Pioneer(R) Brand Sorghum Hybrids in Winning Majority of National Categories in Yield Contest 2
(Date:12/10/2014)... RALEIGH, N.C. , Dec. 9, 2014  Valencell, ... announced it is seeing a staggering demand from its ... demand, the Company revealed, is not solely coming from ... industries as well. "A wearable is only ... a result, accuracy is the ultimate driver in long-term ...
(Date:12/10/2014)... December 9, 2014   ... Platform   Jifflenow, ... scheduling solutions for business-to-business (B2B) events, today announced ... in mobile near-field communication (NFC), Bluetooth low energy ... (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will integrate ...
(Date:12/3/2014)... IRVINE, Calif. , Dec. 2, 2014 /PRNewswire/ ... of globally deployed, innovative test solutions for military, ... the newest version of its successful TS-900 ... the performance and features of high-end systems to ... with outstanding value compared to traditional ATE. ...
Breaking Biology News(10 mins):Wearable Technology Products Demand Highly Accurate Biometric Technology 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3
... jaw of a 120 million year old marine reptile suggest that ... The healed bite wounds were probably made by a member of ... behaviour of extinct sea creatures from the time of dinosaurs. The ... Polonica . Found in the remote desert near the town ...
... when cosmetics, shampoos, skin creams, and other personal care ... to plant-derived extracts and other natural ingredients government ... the silicone-based ingredients long used in these products. That,s ... of Chemical & Engineering News (C&EN), ACS, weekly newsmagazine. ...
... providing the inspiration for University of Adelaide computer science ... increase wind farm productivity. Senior Lecturer Dr Frank ... a "selection of the fittest" step-by-step approach called "evolutionary ... account wake effects, the minimum amount of land needed, ...
Cached Biology News:Battle scars found on an ancient sea monster 2Evolutionary lessons for wind farm efficiency 2
...
MOUSE ANTI S. NEWPORT SALMONELLA HADAR...
MAb to Hu-IFN-Gamma RC2 (CD118), NON-Neutralizing, Clone MMHGR-2 Binds to but does not neutralize human interferon gamma receptor...
Secure-Seal™ hybridization chamber gasket, eight chambers, 9 mm diameter, 0.8 mm deep *set of 20*...
Biology Products: