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

or the fabrication of new materials with combined, enhanced, or even brand new functions."

Future applications could include quantum dots whose glowing fluorescence can be controlled by an external magnetic field for new kinds of switches or sensors; gold nanoparticles that synergistically enhance the brightness of quantum dots' fluorescent glow; or catalytic nanomaterials that absorb the "poisons" that normally degrade their performance, Gang said.

"Modern nano-synthesis methods provide scientists with diverse types of nanoparticles from a wide range of atomic elements," said Yugang Zhang, first author of the paper. "With our approach, scientists can explore pairings of these particles in a rational way."

Pairing up dissimilar particles presents many challenges the scientists investigated in the work leading to this paper. To understand the fundamental aspects of various newly formed materials they used a wide range of techniques, including x-ray scattering studies at Brookhaven's National Synchrotron Light Source (NSLS) and spectroscopy and electron microcopy at the CFN.

For example, the scientists explored the effect of particle shape. "In principle, differently shaped particles don't want to coexist in one lattice," said Gang. "They either tend to separate into different phases like oil and water refusing to mix or form disordered structures." The scientists discovered that DNA not only helps the particles mix, but it can also improve order for such systems when a thicker DNA shell around the particles is used.

They also investigated how the DNA-pairing mechanism and other intrinsic physical forces, such as magnetic attraction among particles, might compete during the assembly process. For example, magnetic particles tend to clump to form aggregates that can hinder the binding of DNA from another type of particle. "We show that shorter DNA strands are more effective at competing against magnetic attraction," Gang said
'/>"/>

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:10/22/2014)... October 21, 2014 The Americas ... inorganic refrigerants market in Americas with analysis and ... of the Americas Inorganic Refrigerants Market report, to ... This also provides a glimpse of the segmentation ... supported by various tables and figures. , ...
(Date:10/22/2014)... NJ (PRWEB) October 22, 2014 ... and services – has been working with a team ... and New Haven Farms Community Farming Collaborative to provide ... ePRO solution. The study, which started in May, ... program that provides participants weekly exposure to and participation ...
(Date:10/22/2014)... According to new market research report ... Integration, Deployment & Support), by Service Model (SaaS, ... Others (Hybrid & Community)) - Global Forecast to ... Cloud Professional Services Market into various sub-segments with ... also identifies the drivers and restraints for this ...
(Date:10/22/2014)... 2014 Research and Markets  has announced ... Material, by Application, Geography - Global Analysis and Forecast ... Organic electronics, also called as polymer electronics ... which deals with small conductive molecules and electrically conductive ... and polymers are carbon based, made using synthetic strategies ...
Breaking Biology Technology:The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 2myPROpad™ Topic of Panel Discussion at the Yale Food Systems Symposium 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 2Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 3Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 4Cloud Professional Services Market by Public, Private, Hybrid & Community Expected to Reach $34.41 Billion by 2019 - New Report by MarketsandMarkets 5Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 2Global Organic Electronics (Semiconductor, Conductive, Dielectric and Substrate) Market - Analysis and Forecast (2014 - 2020) 3
... , , , , Which of the following statements best describes your , ... , , ... , , , ... <a , href="http://www.roche-applied-science.com/pcr/product_find_PCR01a.htm">I , ...
... , for one-step RT-PCR amplification of up to , ... Cat. No. 1 855 476100 reactions , Cat. No. 1 ... Description , , , Components of the Titan ... reaction. The system , includes the following components: , ...
... , , for amplification of GC-rich targets (up to , ... , , , , , , ... Unique enzyme blend of Taq DNA Polymerase and , Pwo DNA Polymerase[a ... The GC-RICH PCR System also includes: , ...
Cached Biology Technology:Find the optimal product for your PCR application 2Titan One Tube RT-PCR System / Kit 2GC-RICH PCR System 2
(Date:10/18/2014)... suspected genetic conditions, a certain type of exome sequencing ... than traditional molecular diagnostic methods, according to a study ... released to coincide with the American Society of Human ... protein­coding region of the genome (the complete set of ... organism), has been rapidly applied in research settings and ...
(Date:10/17/2014)... news release is available in German . ... millions of sperms every day in order to reproduce? And ... are the topic of the latest issue of the research ... 2014). The evolutionary biologist Steven Ramm from Bielefeld University Bielefeld ... it is not unusual for a female to copulate with ...
(Date:10/17/2014)... in German . ... drugs. When treating overdoses, doctors are often limited to supportive ... there is a combination of drugs involved. So what can ... his grandmother,s pills? ETH professor Jean-Christophe Leroux from the Institute ... answer to this question. "The task was to develop an ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Sperm wars 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... a way to accurately predict the impact of climate ... in better management strategies. The findings, among ... and salmon mortality rate, are published in the current ... . While climate change and rising river temperatures ...
... Health has renewed a five-year research grant for a ... lead by David G.I. Kingston, University Distinguished Professor of ... internationally for his work in biodiversity and development of ... Biological Diversity, he will share a portion of any ...
... HARBOR, N.Y. (Nov. 12, 2008) For medical ... written exams on theoretical concepts, it can be rather ... used in the clinic. The third edition of ... these daunting practical-skills tests, Clinical Skills for OSCEs ...
Cached Biology News:UBC study establishes formula for predicting climate change impact on salmon stocks 2Chemist to donate potential pharmaceutical royalties to Madagascar 2New book helps medical students master clinical skills 2
... in two product models - the 5000AT+ and ... that the 6000AT+ includes a membrane desolvation unit ... improved detection limits and reduced oxides. The Ultrasonic ... elements by 10-40 times. Note that with ICP-MS ...
...
... in two product models - the 5000AT+ and ... that the 6000AT+ includes a membrane desolvation unit ... improved detection limits and reduced oxides. The Ultrasonic ... elements by 10-40 times. Note that with ICP-MS ...
... Ligands\n\nReceptor-related research has long been enabled by ... selected to keep pace with new discoveries. ... and services for receptor research and drug ... you do not find exactly what you ...
Biology Products: