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:12/24/2014)... LOUIS , Dec. 23, 2014 ... today that the waiting period under the Hart-Scott-Rodino ... the acquisition expired on December 22, 2014, thereby ... review requirement for the acquisition of the Company ... U.S. antitrust clearance satisfies another condition to closing ...
(Date:12/22/2014)... 22, 2014   Synthetic Biologics, Inc. ... pathogen-specific therapies for serious infections and diseases, ... today announced positive topline safety and tolerability ... of SYN-004, the Company,s investigational oral beta-lactamase ... difficile (C. difficile) infection, antibiotic-associated diarrhea ...
(Date:12/22/2014)... , Dec. 22, 2014  ( www.competitivehealth.com ) ... an online medical bill review and advocacy service, has ... the FREE WellCard Savings discount health services marketplace. ... that was more than they expected to pay. As ... health care costs, WellCard Savings is pleased to offer ...
(Date:12/19/2014)... 19, 2014 Bioject Medical Technologies ... manufacturer of needle-free injection technology, today announced that ... Therapeutics, Inc. (“ITI”) for ITI to use the ... LAMP™ vaccine platform. , In the agreement, ... license to the Biojector®-2000 that triggers based on ...
Breaking Biology Technology:Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 2Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 3Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 4Synthetic Biologics Announces Positive Topline Results from Phase 1a Trial of SYN-004 for the Prevention of C. difficile Infection 5WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 2Bioject and Immunomic Therapeutics Enter into an Agreement for License of Needle-Free Technology for LAMP-vax Vaccines 3
... , , , ALBANY, Ore., ... financial results for the first quarter of fiscal 2010, which ended ... a 5% decrease compared to revenue of $4.9 million in the ... quarter was $1.0 million, compared to operating income of $314,000 for ...
... Md., Aug. 6 GenVec, Inc. (Nasdaq: GNVC ) today ... , , (Logo: http://www.newscom.com/cgi-bin/prnh/20081205/DC50112LOGO ... net loss of $4.8 million ($0.05 per share) for the three months ... ($0.08 per share) in the comparable quarter of 2008. For the six ...
... 6 Novavax, Inc. (Nasdaq: NVAX ) announced ... Chief Financial Officer and treasurer. Mr. Driscoll will report ... , , Previously Mr. Driscoll served as ... Genelabs Technologies, Inc. Prior to his position at Genelabs, ...
Cached Biology Technology:Synthetech Reports First Quarter Fiscal 2010 Results 2Synthetech Reports First Quarter Fiscal 2010 Results 3Synthetech Reports First Quarter Fiscal 2010 Results 4Synthetech Reports First Quarter Fiscal 2010 Results 5Synthetech Reports First Quarter Fiscal 2010 Results 6GenVec Reports Second Quarter 2009 Financial Results 2GenVec Reports Second Quarter 2009 Financial Results 3GenVec Reports Second Quarter 2009 Financial Results 4GenVec Reports Second Quarter 2009 Financial Results 5GenVec Reports Second Quarter 2009 Financial Results 6GenVec Reports Second Quarter 2009 Financial Results 7Novavax Announces Appointment of Frederick W. Driscoll as Vice President, Chief Financial Officer and Treasurer 2
(Date:12/17/2014)... , Dec. 16, 2014  Automation is ... this more evident than at international borders. Over ... document scanners have allowed veteran travelers to self ... Passport Control (APC) Kiosks at an increasing number ... globe. According to Maxine ...
(Date:12/11/2014)... 2014  That blood pressure plays a role in human ... the medical term for high blood pressure – was first ... inflatable cuff that,s used in measuring blood pressure was invented ... new about hypertension, its triggers and its effects. In fact, ... and the best ways to treat it. For ...
(Date:12/10/2014)... Forest Baptist Medical Center today announced plans for a ... Funding for this $50 million capital project is part ... launched next summer. The medical education ... R.J. Reynolds Tobacco Company complex, adjacent to 525@vine in ... plans to be ready to welcome medical students in ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... consider giving thanks for the bacteria-busting ability of cranberry ... beverage holds important clues for preventing cavities. , ... D.D.S., Ph.D., at the University of Rochester Medical Center ... juice a powerful weapon against bladder infections also hold ...
... : It makes me sad when an article that should ... webpage of the student's group in the iGEM competition , ... for their bacterial 'camera'. , Using Petri dishes full ... at The University of Texas at Austin and UCSF successfully ...
... College of Medicine and the German Cancer Research Institute ... regions of a cell--a process crucial for the cellular ... metastasis. Their study appears in the November 24 issue ... Singer and Dr Stefan Huettelmaier, the research team focused ...
Cached Biology News:Give thanks for the cranberry, say dental researchers 2Give thanks for the cranberry, say dental researchers 3Student scientists create living bacterial photographs 2Student scientists create living bacterial photographs 3Einstein scientists discover how protein crucial for motion is synthesised at the right place in the cell 2
Anti Autotaxin /ENPP2 , - (Rabbit)...
Mouse polyclonal antibody to TNPO2 - transportin 2 (importin 3, karyopherin beta 2b)...
...
Mouse monoclonal antibody to ALAS2 - aminolevulinate, delta-, synthase 2 (sideroblastic/hypochromic anemia)...
Biology Products: