Navigation Links
NIST/UMass study finds evidence nanoparticles may increase plant DNA damage
Date:4/18/2012

igger than 100 nanometers) as well as to simple copper ions. They then used a pair of highly sensitive spectrographic techniques** to evaluate the formation and accumulation of DNA base lesions and to determine if and how much copper was taken up by the plants.

For the radishes, twice as many lesions were induced in plants exposed to nanoparticles as were in those exposed to the larger particles. Additionally, the cellular uptake of copper from the nanoparticles was significantly greater than the uptake of copper from the larger particles. The DNA damage profiles for the ryegrasses differed from the radish profiles, indicating that nanoparticle-induced DNA damage is dependent on the plant species and on the nanoparticle concentration.

Finally, the researchers showed that cupric oxide nanoparticles had a significant effect on growth, stunting the development of both roots and shoots in all three plant species tested. The nanoparticle concentrations used in this study were higher than those likely to be encountered by plants under a typical soil exposure scenario.

"To our knowledge, this is first evidence that there could be a 'nano-based effect' for cupric oxide in the environment where size plays a role in the increased generation and accumulation of numerous mutagenic DNA lesions in plants," Nelson says.

Next up for Nelson and his colleagues is a similar study looking at the impact of titanium dioxide nanoparticlessuch as those used in many sunscreenson rice plants.


'/>"/>

Contact: Michael E. Newman
michael.newman@nist.gov
301-975-3025
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Long-term study shows effect of climate change on animal diversity
2. £2 million study to reveal workings of dementia genes
3. New study looks to define evangelicals and how they affect polling
4. CU-Boulder study suggests air quality regulations miss key pollutants
5. Researchers study acoustic communication in deep-sea fish
6. Study reveals homeowner perceptions in fire-prone areas
7. Researchers study how pistachios may improve heart health
8. Study: urban black bears live fast, die young
9. New study indicates link between weight gains during pregnancy and dieting history
10. Study reveals specific gene in adolescent men with delinquent peers
11. Sweat it out: UH study examines ability of sweat patches to monitor bone loss
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NIST/UMass study finds evidence nanoparticles may increase plant DNA damage
(Date:8/20/2015)... Aug. 20, 2015 NXT-ID, Inc. (NASDAQ: ... company focused on the growing mobile commerce market and ... joined The Smart Card Alliance and the EMV Migration ... and the Smart Card Alliance Latin America (SCALA) Chapter ... peers and thought leaders promoting adoption of smart card ...
(Date:8/12/2015)... Aug. 12, 2015   MedNet Solutions , an ... spectrum of clinical research, is proud to announce that ... comprehensive SaaS-based eClinical technology platform, has led the way ... two quarters of 2015.   Q2 2015 and Q1 ... measured by contract value sold in the company,s 15 ...
(Date:8/10/2015)... Germany , August 10, 2015 /PRNewswire/ ... world leader in Eye Tracking Technology for more than ... Eye Tracking Platform for integration into all consumer display ... designs for seamless integration of eye tracking into consumer ... and augmented reality smart glasses. Omnivision,s leading sensor technology ...
Breaking Biology News(10 mins):NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 2NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 3NXT-ID, Inc. Joins Smart Card Alliance and EMV Migration Forum 4MedNet Solutions Experiences Explosive Corporate Growth 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 2SMI Completes OEM Eye Tracking Platform to Cover All Consumer Displays 3
... milk is the best source of food for infants. University ... second bestformula made from hazelnut oil. Casimir Akoh, ... in the College of Agricultural and Environmental Sciences, developed a ... structure of mother,s milk, which makes it better suited to ...
... helped biologists figure out why platelets, the cells that ... they are. Because platelets are important both for healing ... understanding of how they form and behave could have ... specific for blood clotting," said Alex Mogilner, professor of ...
... FRANCISCO May 25, 2012 -- Wells Fargo (NYSE:WFC) has ... Program a grant for $40,000 in support of marine ... the lack of engaging science education opportunities that inspire ... skills and adopt conservation attitudes and behaviors, and a ...
Cached Biology News:Hazelnuts improve infant formula 2Wells Fargo fosters environmental conservation through University of Miami's RJD program 2
(Date:9/3/2015)... REDWOOD CITY, Calif. , Sept. 3, 2015 ... announced today that five abstracts highlighting the performance ... patients have been accepted for oral and poster ... of Lung Cancer,s 16th World Conference on Lung ... Cancer Center; the University of California, Davis; the ...
(Date:9/3/2015)... , Sept. 3, 2015  StemProtein LLC, ... a recent spinout of Stemedica Cell Technologies Inc., ... Silberg as CEO of StemProtein. Silberg will ... producing and preserving Stem Cell Factors (SCFs), a ... professional in the pharmaceutical and biopharmaceutical industries with ...
(Date:9/3/2015)... ... September 03, 2015 , ... Michigan-based technology startup ... early 2016. , The device, called the Halo H1, is a wearable ... sensing technology. These sensors track trending interstitial fluid levels in the body, in ...
(Date:9/2/2015)... Sept. 2, 2015 Research and ... addition of Jain PharmaBiotech,s new report ... their offering. An increasing ... biotechnology industries is anticipated. Nanotechnology will be ... - from formulations for optimal delivery to ...
Breaking Biology Technology:Leading Cancer Centers to Present Clinical Utility Data For Guardant360 At IASLC's 16th World Conference on Lung Cancer in Denver Sept. 6-9 2Leading Cancer Centers to Present Clinical Utility Data For Guardant360 At IASLC's 16th World Conference on Lung Cancer in Denver Sept. 6-9 3Leading Cancer Centers to Present Clinical Utility Data For Guardant360 At IASLC's 16th World Conference on Lung Cancer in Denver Sept. 6-9 4StemProtein Names Thomas H. Silberg As CEO, To Focus On Stem Cell Secreted Proteins Addresing A Variety Of Health And Beauty Related Needs 2StemProtein Names Thomas H. Silberg As CEO, To Focus On Stem Cell Secreted Proteins Addresing A Variety Of Health And Beauty Related Needs 3Technology Startup Halo Wearables to Unveil Non-Invasive Hydration Monitoring Device Early 2016 2Global Nanobiotechnology Applications, Markets and Companies Report 2015-2024 2Global Nanobiotechnology Applications, Markets and Companies Report 2015-2024 3
... A team led by Johns Hopkins researchers has solved ... of bacteria, discoveries that could lead to a new ... in the journal Current Biology, the scientists reported how ... a rod-shaped bacterium to produce two offspring, can be ...
... Colo., April 8, 2008 HemoGenix(R),Inc., a privately-held ... USPTO has issued the first two of several ... the 21st,century answer and the only alternative to, ... first described in 1966., HALO(R) was developed ...
... ShapeGrabber and Nikon,Instruments Inc. today announced ... a,sales distribution channel in the United States ... inspection systems. This arrangement will,increase ShapeGrabber,s current ... Nikon to provide customers with,additional non-contact solutions ...
Cached Biology Technology:Solving the Z ring's mysteries may lead to new antibiotics 2Solving the Z ring's mysteries may lead to new antibiotics 3HemoGenix(R), Inc. Receives Issued Patent for its HALO(R) Technology Platform From the United States Patent and Trademark Office (USPTO). 2HemoGenix(R), Inc. Receives Issued Patent for its HALO(R) Technology Platform From the United States Patent and Trademark Office (USPTO). 3ShapeGrabber and Nikon Instruments Inc. Announce Distribution Agreement 2
HLA II DG+DR+DP Monoclonal Antibody, Purified, Unconjugated, Clone: IQU9 This antibody is specific for the monomorphic determinant of the HLA Class II beta chains of the human MHC (28 kDa)....
100 g monoclonal antibody which can immunocapture ~10 g of Complex IV from heart mitochondria. Also included are 2 mg of bovine heart mitochondria for control immunocapture....
Vascular Endothelial Growth Factor C Class: Antibody Product Group: Angiogensis...
Annexin V Binding Buffer, 10X Concentrate Buffer , 50 ml Consult technical datasheet for details....
Biology Products: