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:9/19/2014)... , September 19, 2014 Biotech ... development of emerging drug systems and advanced Laboratory Instrumentation. ... and Company (NYSE: BDX ), Thermo Fisher ... Inc. (NASDAQ: RGDO ), Sangamo Biosciences Inc. ... HOLX) Pressure BioSciences, Inc. (OTCQB: PBIO) ("PBI" ...
(Date:9/19/2014)... 2014 Barnhardt Manufacturing Company ... its Organic Cotton . The USDA Certified Biobased ... biobased ingredients meets or exceeds levels set by USDA. ... whole or in significant part of agricultural, forestry, or ... Organic cotton to be immediately identified as a USDA ...
(Date:9/19/2014)... 19, 2014 The new , Healthcare ... , available today on PharmaBoardroom.com for free ... that rocked the Spanish economy in 2009, and the austerity ... has remained pragmatic in times of trouble. "Despite ... fifth biggest European market, and the general conditions to invest ...
(Date:9/18/2014)... Sept. 18, 2014 /PRNewswire-iReach/ -- DeepResearchReports.com adds "2014 ... Acid Industry" and "2014 Deep Research Report on ... its research database. Photo - ... Report on Global and China Acetic Acid Industry" ... China and Global Acetic ...
Breaking Biology Technology:Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 2Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 3Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 4Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 5Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 6Medical Instrumentation Automation Advances for Biological Sample Preparation - Company Expects Q4 Revenue Impact from Newest Instrument Systems 7Barnhardt Manufacturing Company Earns USDA Certified Biobased Product Certification and Label for Organic Cotton 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 2Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 3Acetic Acid Market & Sodium Stannate Industry (China, Global) Research Report 4
... are used in a wide variety of applications ... and aerospace applications. Thermal analysis is routinely used ... growing trend to use nanostructured materials has made ... an atomic force microscope-based technique called nanoscale thermal ...
... laboratory has found a way to turn common carbon ... with properties expected to prove useful in electronic, optical ... scientist Pulickel Ajayan, in collaboration with colleagues in China, ... one-step chemical process that is markedly simpler than established ...
... cell therapy manufacturing division, Progenitor Cell Therapy ("PCT"), ... NBS ) ("NeoStem" or the "Company"), announced today ... and regulatory services related to the development of ... injectable suspension of microencapsulated insulin-producing, pancreatic islet cells ...
Cached Biology Technology:Magnetic actuation enables nanoscale thermal analysis 2Graphene quantum dots: The next big small thing 2Graphene quantum dots: The next big small thing 3Islet Sciences, Inc. Selects NeoStem's Manufacturing Subsidiary Progenitor Cell Therapy for Product Manufacturing 2Islet Sciences, Inc. Selects NeoStem's Manufacturing Subsidiary Progenitor Cell Therapy for Product Manufacturing 3Islet Sciences, Inc. Selects NeoStem's Manufacturing Subsidiary Progenitor Cell Therapy for Product Manufacturing 4
(Date:9/18/2014)... small, icy moon of Uranus, is one of the ... system. Despite its relatively small size, Miranda appears to ... in the formation of at least three remarkable and ... , These coronae are visible in Miranda,s southern hemisphere, ... Arden corona, the largest, has ridges and troughs with ...
(Date:9/18/2014)... the International Space Station ever starts a "frequent flyers" ... status. Recently the orbiting laboratory has hosted increasing numbers ... returned from the space station in April, and another ... third experiment is planned to launch in December. , ... around the world-- and in space. Model organisms can ...
(Date:9/18/2014)... information is stored in DNA, tiny strands of nucleic ... bodies. To express this genetic data, our DNA is ... into proteins that perform tasks in our cells. ... of RNA molecule. Unlike all other known RNAs, this ... circRNA molecules are abundant, little has been known about ...
Breaking Biology News(10 mins):Miranda: An icy moon deformed by tidal heating 2Miranda: An icy moon deformed by tidal heating 3Miranda: An icy moon deformed by tidal heating 4Miranda: An icy moon deformed by tidal heating 5Miranda: An icy moon deformed by tidal heating 6Miranda: An icy moon deformed by tidal heating 7Buzzing with activity: Fruit flies orbit Earth for science 2Buzzing with activity: Fruit flies orbit Earth for science 3Buzzing with activity: Fruit flies orbit Earth for science 4Scientists find how mysterious 'circular RNA' is formed, claim muscular dystrophy link 2
... aquatic organisms by the discharge of certain steroids and pharmaceutical ... as the compounds degrade, the ecological risks naturally decline. ... of these bioactive organic compounds may transform in a way ... study led by the University of Iowa and published online ...
... of Health (NIH) has launched the first phase of the ... that aims to improve access to and analysis of data ... of genetic information on the microbes that naturally colonize our ... available as a free public dataset , allowing users ...
... SANTA MONICA, CA -- A new urine test for ... now commercially available to men nationwide through the University ... utility of the PSA blood test, increases physicians, ability ... in patients, and may help tens of thousands of ...
Cached Biology News:Study finds steroids may persist longer in the environment than expected 2Study finds steroids may persist longer in the environment than expected 3NIH launches first phase of microbiome cloud project 2Prostate Cancer Foundation announces new urine test for prostate cancer available 2Prostate Cancer Foundation announces new urine test for prostate cancer available 3
...
...
... isomers are predominantly used for labeling proteins, ... labeling peptides and nucleotides because they give ... often required in the conjugation processes. 5-TAMRA ... labeling peptides and proteins. 6-TAMRA is predominately ...
Rabbit polyclonal to GPCR G2A ( Abpromise for all tested applications). entrezGeneID: 29933 SwissProtID: Q9UNW8...
Biology Products: