Navigation Links
2 for 1: Simultaneous size and electrochemical measurement of nanomaterials
Date:3/7/2012

Researchers at the National Institute of Standards and Technology (NIST) have done a mash-up of two very different experimental techniquesneutron scattering and electrochemical measurementsto enable them to observe structural changes in nanoparticles as they undergo an important type of chemical reaction. Their recently published technique* allows them to directly match up particle size, shape and agglomeration with the "redox" chemical properties of the particles. The measurements are important both for the design of nanoparticles for particular applications and for toxicology studies.

Nanoparticles present unique engineering challengesand opportunitiesbecause their extremely small size can give them physical properties quite unlike those they have in bulk quantities. The challenge for materials scientists is to determine just what those changes are and how they relate to particle size and structure.

The NIST team was interested in the oxidation-reductionredox properties of zinc oxide nanoparticles, which are used or being considered for a wide variety of applications ranging from sunscreens and antibacterial coatings to semiconductor and photoelectronic devices.

Redox reactions are one of the major divisions of chemical reactions, those that involve a transfer of electrons from one atom or molecule to another. Redox properties determine the path a chemical reaction will take. "They are the drivers of many biological processes," explains NIST materials researcher Vivek Prabhu. "There are many biochemical reactions that are well-defined oxidation-reduction reactions. There are tables of these. But there are no such tables that we know of on how nanoparticles can affect those reactions."

The NIST team knew they could monitor the size, shape and dispersion of nanoparticles in solution using SANSsmall-angle neutron scattering. The scattering patterns from a SANS instrument, says Prabhu, give you not only those details but st
'/>"/>

Contact: Michael Baum
michael.baum@nist.gov
301-975-2763
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. New technique allows simultaneous tracking of gene expression and movement
2. Cepheid Receives FDA Clearance for Xpert Flu, Delivering Simultaneous Detection and Differentiation of Flu A, Flu B, and 2009 H1N1 Strain
3. Using lasers to vaporize tissue at multiple points simultaneously
4. The Modern DeBakey VAD™ To Be Introduced For the First Time in the U.S. : HeartAssist 5™ Pediatric VAD Features Industry Exclusive Direct Blood Flow Measurement System
5. GEMS Introduces Ultrasonic Continuous Liquid Level Sensor for Challenging Fluid Measurement
6. Atherotech Receives Patent for ApoB Measurement
7. NISTs LIDAR may offer peerless precision in remote measurements
8. Nano measurement in the third dimension
9. deCODE Finds Genetic Factors Impacting Key Clinical Measurements of Heart Activity and Disease Risk
10. Computerized IVF Follicle Measurements are Faster and Give High Success Rates, Says Research from Chicago Fertility Doctors Richard Sherbahn and Todd Deutch
11. New measurement into biological polymer networks
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
2 for 1: Simultaneous size and electrochemical measurement of nanomaterials
(Date:9/19/2014)... 2014 Cereal grain scientists, quality ... gather October 5–8, 2014, for the AACC International ... Center in Providence, Rhode Island. The comprehensive scientific ... food scientists, chemists, microbiologists, nutritionists, and those interested ... management. To date, 1,000 attendees have registered for ...
(Date:9/18/2014)... 2014 Bipartisan passage this week by ... to stimulate development and commercialization of new technologies and ... leaders of SPIE, the international society for optics ... and Innovation (RAMI) Act, now moves to the full ... they are optimistic that it will win passage there ...
(Date:9/18/2014)... 18, 2014 A novel robotic system ... scanner is currently being tested as part of a ... in Boston with the aim of determining if the ... prostate cancer biopsies faster, more accurate, less costly, and ... has the potential to deliver prostate cancer therapies with ...
(Date:9/18/2014)... 2014 On Tuesday, Secretary of Energy ... Risch for National Lab Day on the Hill. The ... national laboratory system. Durbin and Risch also formally launched ... awareness of the reach of the national labs as ... address some of our nation's most pressing challenges. , ...
Breaking Biology Technology:Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... Reportlinker.com announces that a new ... its catalogue. , Worldwide ... Electron Microscope Market Shares, Strategies, and ... , http://www.reportlinker.com/p0153912/Worldwide-Optical-Transmission-TEM-and-Scanning-SEM-Electron-Microscope-Market-Shares-Strategies-and-Forecasts-2009-to-2015.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=prnewswire ...
... (Nasdaq: DNDN ) today announced that management will present at the following ... New York City, Tuesday, November 10, 2009, ... Phoenix, Arizona, Friday, November 13, 2009, ... Healthcare Conference, New York City, Tuesday, November ...
... NeurogesX, Inc. (Nasdaq: NGSX ), a biopharmaceutical ... therapies, announced today that Anthony DiTonno, President and Chief ... conferences in New York City: the Oppenheimer & Co. ... 2009 and the Lazard Capital Markets 6th Annual Healthcare ...
Cached Biology Technology:Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 2Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 3Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 4Reportlinker Adds Worldwide Optical, Transmission TEM, and Scanning SEM Electron Microscope Market Shares, Strategies, and Forecasts, 2009 to 2015 5NeurogesX to Present at Two November Conferences 2NeurogesX to Present at Two November Conferences 3
(Date:9/18/2014)... BUFFALO, N.Y. A sleep-promoting circuit located deep in ... deep sleep. Discovered by researchers at Harvard School of ... and Biomedical Sciences, this is only the second "sleep ... to be both necessary and sufficient to produce deep ... Neuroscience , the study demonstrates that fully half of ...
(Date:9/18/2014)... "frequent flyers" program, fruit flies surely would be eligible ... increasing numbers of fruit fly research studies. One fruit ... and another is scheduled launch to the station Sept. ... December. , Fruit flies are biomedical research models studied ... organisms can reveal the basis for health and disease ...
(Date:9/18/2014)... built the first smartphone app that automatically reveals ... In other words, your smartphone knows your state ... and how that affects you. , The StudentLife ... loneliness to their academic performance, also may be ... to monitor mental health, trigger intervention and improve ...
Breaking Biology News(10 mins):No sedative necessary: Scientists discover new 'sleep node' in the brain 2Buzzing 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 4New Dartmouth smartphone app reveals users' mental health, performance, behavior 2New Dartmouth smartphone app reveals users' mental health, performance, behavior 3New Dartmouth smartphone app reveals users' mental health, performance, behavior 4
... , JUPITER, FL Sathyanaryanan Puthanveettil, an assistant professor ... has been awarded a pair of notable grants to ... Puthanveettil will receive $225,000 over three years from ... long-term memory of a motor protein called kinesin. In ...
... didn,t have enough to worry about from dodging poachers, ... a population of endangered markhora majestic wild goat specieshas ... Wildlife Conservation Society and partners in Tajikistan and France. ... that can reach nearly five feet in length, and ...
... melanoma, the most aggressive skin cancer, is critical because ... of Missouri researchers are one step closer to melanoma ... have a chance to form. Commercial production of a ... will soon be available to scientists and academia for ...
Cached Biology News:Scripps Research Scientist wins pair of grants to study critical component of memory 2Wildlife Conservation Society documents pneumonia outbreak in endangered markhor 2MU researcher's photoacoustic device finds cancer cells before they become tumors 2
Request Info...
... LXQ linear ion trap mass spectrometer enables ... laboratory., The LXQ linear ion trap mass ... proteomic applications, delivering the fast cycle time ... ion trap at an attractive price. ...
... gel stain was developed specifically for reduced mutagenicity ... staining DNA in agarose or acrylamide gels. SYBR ... ethidium bromide but SYBR Safe stain's detection sensitivity ... Safe stain comes as a premixed solution that ...
... are just some the things youll be telling ... Interactions, edited by Erica Golemis, One look at ... compilation of topics in protein interaction will tell ... must be a part of your personal protein ...
Biology Products: