Navigation Links
Nanoparticles and their size may not be big issues
Date:10/24/2011

EUGENE, Ore. -- If you've ever eaten from silverware or worn copper jewelry, you've been in a perfect storm in which nanoparticles were dropped into the environment, say scientists at the University of Oregon.

Since the emergence of nanotechnology, researchers, regulators and the public have been concerned that the potential toxicity of nano-sized products might threaten human health by way of environmental exposure.

Now, with the help of high-powered transmission electron microscopes, chemists captured never-before-seen views of miniscule metal nanoparticles naturally being created by silver articles such as wire, jewelry and eating utensils in contact with other surfaces. It turns out, researchers say, nanoparticles have been in contact with humans for a long, long time.

The project involved researchers in the UO's Materials Science Institute and the Safer Nanomaterials and Nanomanufacturing Initiative (SNNI), in collaboration with UO technology spinoff Dune Sciences Inc. SNNI is an initiative of the Oregon Nanoscience and Microtechnologies Institute (ONAMI), a state signature research center dedicated to research, job growth and commercialization in the areas of nanoscale science and microtechnologies.

The research -- detailed in a paper placed online in advance of regular publication in the American Chemistry Society's journal ACS Nano -- focused on understanding the dynamic behavior of silver nanoparticles on surfaces when exposed to a variety of environmental conditions.

Using a new approach developed at UO that allows for the direct observation of microscopic changes in nanoparticles over time, researchers found that silver nanoparticles deposited on the surface of their SMART Grids electron microscope slides began to transform in size, shape and particle populations within a few hours, especially when exposed to humid air, water and light. Similar dynamic behavior and new nanoparticle formation was
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert

Page: 1 2

Related biology news :

1. MU scientists go green with gold, distribute environmentally friendly nanoparticles
2. Workshop on environmental nanoparticles at UD, Nov. 10-11
3. UD researchers show that plants can accumulate nanoparticles in tissues
4. Nanoparticles in the home: More and smaller than previously detected
5. The gold standard: Biodesign Institute researchers use nanoparticles to make 3-D DNA nanotubes
6. Magnetic nanoparticles navigate therapeutic genes through the body
7. To fight drug addiction, UB researchers target the brain with nanoparticles
8. Shape matters in the case of cobalt nanoparticles
9. New nanoparticles could revolutionize therapeutic drug discovery
10. University of Leicester researchers discover new fluorescent silicon nanoparticles
11. Facile synthesis of nanoparticles with multiple functions advanced in Singapore
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/15/2014)... -- While we may still be a few years away from ... to gain instant access to all that ailed his patients, ... tablets for monitoring and measuring our health are cropping up ... a tad Orwellian to some, but a new survey suggests ... opportunities into their healthcare regime. These are some ...
(Date:11/10/2014)... detergent pods began appearing on U.S. store shelves in ... numbers ever since. The small packets can be tossed ... out a liquid or powder. The convenience, though, has ... study from researchers at Nationwide Children,s Hospital found that ... reports of 17,230 children younger than 6 years of ...
(Date:11/7/2014)... Florida , November 6, 2014 ... authentication for better mobile security revolutionizing online transactions.  Companies in ... Alibaba Holdings Ltd. (NYSE: BABA ), Google Inc. ... MSFT ), eBay Inc. (NASDAQ: EBAY ) and ... NXTD and NXTDW), a biometric authentication company focused ...
Breaking Biology News(10 mins):Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4Study finds laundry detergent pods, serious poisoning risk for children 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6
... $50 billion in manufactured goods last year, according to ... $2.6 trillion. By 2011, over $15 billion in nano-enabled ... $3 billion in 2006. And industry experts project that ... consumer food products by 2010. Yet, ...
... Artificial teeth and crowns made of ceramic material are ... but that may change because of a technique that ... Oak Ridge National Laboratorys Materials Science and Technology Division has ... ceramics alters the surface structure. Nowadays, cracks begin at the ...
... Brussels & Leuven, Belgium As the most common ... carries enormous implications for our ageing society. It is ... peptide (A -peptide) protofibrils. Until now, the conditions under ... to the disease remained unknown. VIB researchers have now ...
Cached Biology News:FDLI, PEN co-sponsor major conference on nanotechnology 2FDLI, PEN co-sponsor major conference on nanotechnology 3Story tips from the Department of Energy's Oak Ridge National Laboratory, December 2007 2Story tips from the Department of Energy's Oak Ridge National Laboratory, December 2007 3Lipids in the brain an important factor for Alzheimer's disease? 2
(Date:11/24/2014)... Calif. , Nov. 24, 2014   Veracyte, Inc. ... Bonnie H. Anderson , president and chief executive officer, will ... 26 th Annual Healthcare Conference on Tuesday, December 2, ... . The live audio webcast and subsequent ... http://investor.veracyte.com . Please connect to the website at least 15 ...
(Date:11/24/2014)... 2014  Spherix Incorporated (Nasdaq: SPEX ... fostering and monetization of intellectual property, today provided ...  Case No. 3:13-cv-03494-M and  Spherix v. Uniden Corporation ... the United States District Court for the Northern ... On November 21, 2014 the Markman ...
(Date:11/22/2014)... (PRWEB) November 21, 2014 Prominent ... investors will gather on December 3rd at Genetic ... Conferences series. GeneticRx will take place at the ... School and will discuss the present and future ... exon skipping, and gene editing—as well as the ...
(Date:11/22/2014)... Rapids, MI (PRWEB) November 22, 2014 ... opportunity to simulate the proper management of life-like ... and test lung devices . Grand Rapids-based, Michigan ... plans to donate two of the respiratory simulation ... to $15,000 each. Grand Valley and Muskegon Community ...
Breaking Biology Technology:Veracyte to Present at the Piper Jaffray 26th Annual Healthcare Conference 2Markman Hearing Held as Scheduled in VTech and Uniden Cases 2Pioneering Academics and Key Industry Leaders to Discuss Rare Diseases and the Emergence of New Genetic Medicines at Genetic Rx on December 3rd 2Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 2Michigan Instruments Donates Two Respiratory Simulation Training and Test Lung (TTL) Devices to Grand Valley State University 3
... Sept. 16 Metamark Genetics, Inc., a privately held ... optimize cancer care, announced today the appointment ... Dr. Blume-Jensen joins Metamark with over 20 ... discovery. From 2001 to 2008 Dr. Blume-Jensen was department ...
... Sept. 15 CryoLife, Inc. (NYSE: ... processing company, announced today that it will participate in the ... in New York City. D. Ashley Lee, executive ... CryoLife, Inc., will present a corporate overview on Tuesday, September ...
... 14, 2010 -- As industries and consumers increasingly seek ... Department of Energy,s Oak Ridge National Laboratory is providing ... A research team led by ORNL,s Nina Balke, ... type of scanning probe microscopy called electrochemical strain microscopy ...
Cached Biology Technology:Metamark Genetics, Inc. Announces New Chief Scientific Officer 2CryoLife to Present at UBS Global Life Sciences Conference 2ORNL scientists reveal battery behavior at the nanoscale 2
RABBIT ANTI HALOPERIDOL...
Form: Ready to use Applications: Western Blot, ELISA...
... Analyzer for General Chemistries, Specialty Chemistries, QC, Reagent Development, Pharmaceutical Development, Physician Owned Labs, Drugs ... user-selectable wavelengths. ... ... ...
2,4,6, Trinitrophenyl hapten is conjugated to lipopolysaccharide (LPS)....
Biology Products: