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

observed when the study was extended to look at macro-sized silver objects such as wire or jewelry.

"Our findings show that nanoparticle 'size' may not be static, especially when particles are on surfaces. For this reason, we believe that environmental health and safety concerns should not be defined -- or regulated -- based upon size," said James E. Hutchison, who holds the Lokey-Harrington Chair in Chemistry. "In addition, the generation of nanoparticles from objects that humans have contacted for millennia suggests that humans have been exposed to these nanoparticles throughout time. Rather than raise concern, I think this suggests that we would have already linked exposure to these materials to health hazards if there were any."

Any potential federal regulatory policies, the research team concluded, should allow for the presence of background levels of nanoparticles and their dynamic behavior in the environment.

Because copper behaved similarly, the researchers theorize that their findings represent a general phenomenon for metals readily oxidized and reduced under certain environmental conditions. "These findings," they wrote, "challenge conventional thinking about nanoparticle reactivity and imply that the production of new nanoparticles is an intrinsic property of the material that is now strongly size dependent."

While not addressed directly, Hutchison said, the naturally occurring and spontaneous activity seen in the research suggests that exposure to toxic metal ions, for example, might not be reduced simply by using larger particles in the presence of living tissue or organisms.


'/>"/>
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:5/5/2015)... Conn. , May 5, 2015, NXT-ID, Inc. ... authentication company focused on the growing mobile commerce market, reminds ... Company,s Chief Technology Officer, is presenting  at CARTES SECURE CONNEXIONS ... May 5-7, 2015. The three-day conference is ... David is speaking in is themed Global Fraud: Where ...
(Date:4/27/2015)... Conn. , Apr. 27, 2015 NXT-ID, ... a biometric authentication company focused on the growing mobile ... commence shipping to pre-order customers the first week of ... through the month of May. ... a significant milestone for the company as Wocket® enters ...
(Date:4/21/2015)... , April 21, 2015 ... government policies are boosting access control systems market in ... According to a recently published report by TechSci Research ... ", the access control systems market in ... billion by 2020.The access control systems market in the ...
Breaking Biology News(10 mins):NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 2NXT-ID, Inc.'s CTO, David Tunnell, Presents at CARTES SECURE CONNEXIONS AMERICA 2015 Today in Washington DC. 3Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3
... and commercial systems, BANNOCKBURN, Ill., Oct. 9 ... received a Notice of Allowance,from the U.S. Patent ... that allows,users to remotely manage networked systems through ... patent consists of 16 method and system,claims for ...
... fascinating new study is the first outside of North ... Supporting a growing body of research, the study reveals ... and provide minimal parenting have much lower testosterone levels ... issue of Current Anthropology, Peter B. Gray (University of ...
... cancer (CRC) is currently one of the three ... the 5-year survival rate for patients with early ... is dramatically decreased by local recurrence and the ... liver, which are the predominant cause of CRC-related ...
Cached Biology News:Parus Interactive Awarded Patent for Speech-Activated Remote System Management 2Study finds that even aloof husbands have lower testosterone levels than unmarried men 2Interleukin-8, key marker for colorectal cancer treatment 2
(Date:5/27/2015)... May 27, 2015 RXi Pharmaceuticals Corporation ... on discovering and developing innovative therapies primarily in ... it has commenced a public offering of shares ... of its common stock and overallotment purchase rights ... shares of common stock, warrants and overallotment purchase ...
(Date:5/27/2015)... May 26, 2015 Research and Markets( ... "Global Breast Cancer Monoclonal Antibodies Market Outlook ... Globally, Roche seems to dominate the breast cancer ... block buster molecule, Herceptin has been able to ... found that breast cancer cells become recalcitrant and ...
(Date:5/27/2015)... Expanding in a big way into the ... Inc. recently inked a deal with Arthur Mokuda, ... , the largest endodontic distributor in Japan. The move ... Avalon Biomed, which manufactures Grey MTA Plus® and the ... that have won renown from dentists around the world. ...
(Date:5/27/2015)... May 27, 2015  Tikcro Technologies Ltd. (OTCQB: TIKRF) ... 31, 2015. Aviv Boim , ... pre-clinical work to generate functional specific antibodies, targeting identified ... we are encouraged by the development progress. We are ... antibodies which modulate immune checkpoints gain clinical acceptance for ...
Breaking Biology Technology:RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 2RXi Pharmaceuticals Announces Proposed Public Offering of Common Stock and Warrants 3Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 2Global Breast Cancer Monoclonal Antibodies Market Outlook 2020 3Dental Manufacturer Avalon Biomed Inks Major Deal with Japanese Distributor 2Dental Manufacturer Avalon Biomed Inks Major Deal with Japanese Distributor 3Tikcro Technologies Reports First Quarter 2015 Results 2Tikcro Technologies Reports First Quarter 2015 Results 3
... all the talk-show chatter about cutting government spending and holding ... the people they represent really want to bite the bullet? ... Assembly, and what is likely to happen this week in ... ,Perhaps ambivalence in the Capitol accurately reflects the mood of ...
... Three Wisconsin businesses will receive funding for technology ... under the Technology Assistance Grant program. , ,The ... to early-stage Wisconsin high-tech companies to offset the ... grant recipients are: Automated Notification Systems, Inc. ...
... Household planning will accomplish more in preparing for ... flu than will any reliance on information technology, attendees ... told. , ,Panelists talked about being three years late ... the effects of a flu pandemic, which would cause ...
Cached Biology Technology:In public attitudes about taxes and spending, Wisconsin is Jekyll and Hyde 2In public attitudes about taxes and spending, Wisconsin is Jekyll and Hyde 3IT may take a back seat in fighting avian flu 2IT may take a back seat in fighting avian flu 3IT may take a back seat in fighting avian flu 4
... microPET R4 is the lowest priced, ... in the world. Despite the microPET ... competing systems in all performance categories; count ... feature set., microPET is a dedicated small ...
... has been developed to significantly increase the ... Stability is increased at room temperature ... This product is subjected to 0.45 ... azide. This formulation insures consistently high ...
... Stabilizing Diluent (MOPS Buffered) has been developed ... conjugates in solution. HRP Stabilizer prevents ... the conformation of the antibody or protein ... is filtered at 0.2 microns., ,Contents: ...
... is a powerful tool for sample purification ... are DNA/RNA or protein purification as well ... fully automated on the Genesis Series of ... ,In combination with the RoMa arm and ...
Biology Products: