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

Researchers at the National Institute of Standards and Technology (NIST) and the University of Massachusetts Amherst (UMass) have provided the first evidence that engineered nanoparticles are able to accumulate within plants and damage their DNA. In a recent paper,* the team led by NIST chemist Bryant C. Nelson showed that under laboratory conditions, cupric oxide nanoparticles have the capacity to enter plant root cells and generate many mutagenic DNA base lesions.

The team tested the man-made, ultrafine particles between 1 and 100 nanometers in size on a human food crop, the radish, and two species of common groundcovers used by grazing animals, perennial and annual ryegrass. This research is part of NIST's work to help characterize the potential environmental, health and safety (EHS) risks of nanomaterials, and develop methods for identifying and measuring them.

Cupric oxide (also known as copper (II) oxide or CuO) is a compound that has been used for many years as a pigment for coloring glass and ceramics, as a polish for optics, and as a catalyst in the manufacture of rayon. Cupric oxide also is a strong conductor of electric current, a property enhanced at the nanoscale level, which makes the nanoparticle form useful to semiconductor manufacturers.

Because cupric oxide is an oxidizing agenta reactive chemical that removes electrons from other compoundsit may pose a risk. Oxidation caused by metal oxides has been shown to induce DNA damage in certain organisms. What Nelson and his colleagues wanted to learn was whether nanosizing cupric oxide made the generation and accumulation of DNA lesions more or less likely in plants. If the former, the researchers also wanted to find out if nanosizing had any substantial effects on plant growth and health.

To obtain the answers, the NIST/UMass researchers first exposed radishes and the two ryegrasses to both cupric oxide nanoparticles and larger sized cupric oxide particles (b
'/>"/>

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:4/2/2015)... , April 2, 2015 ... tests DERMALOG by far outperforms the strongest competitors, ... maintaining high accuracy, the system is capable of ... the speed proves up to be ten times ... than its runner-up performance.      (Photo: ...
(Date:4/2/2015)... According to preliminary estimates Fingerprint ... higher than 125 MSEK. This exceeds the guidance provided ... revenues for Q1 2015 would be in line with ... 2014. The operating result for the first quarter is ... report will as previously communicated be published on May ...
(Date:4/1/2015)... Apr. 1, 2015  NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market, announces the ... wallets is underway to early access pre-order customers. ... usage at retail outlets including Walmart, Target, AT&T, Dunkin, ... Wocket was accepted at all outlets and very easy ...
Breaking Biology News(10 mins):DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Fingerprint Cards Revises Revenues for Q1 2015 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 2NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 3NXT-ID Reports Second Shipment of Wocket Smart Wallets Underway to Early Access Pre-order Customers and Provides User Feedback 4
... in which babies are born can have a dramatic ... That is the conclusion of a new study published ... Neuroscience . The experiment provides the first evidence for ... conducted by Professor of Biological Sciences Douglas McMahon, graduate ...
... for the first time that exactly how we see our environment ... We are all familiar with the idea that our thoughts ... assume that how we perceive the visual world is usually very ... the area at the back of the brain responsible for processing ...
... reversed by activating stem cells that can repair injury in ... from the Universities of Cambridge and Edinburgh have identified a ... sheaths that protect nerve fibres in the brain. ... can be exploited to make the brain,s own stem cells ...
Cached Biology News:Babies' biological clocks dramatically affected by birth light cycle 2Babies' biological clocks dramatically affected by birth light cycle 3Babies' biological clocks dramatically affected by birth light cycle 4Babies' biological clocks dramatically affected by birth light cycle 5Seeing the world differently 2Study reveals new possibility of reversing damage caused by MS 2
(Date:4/20/2015)... -- Eli Lilly and Company (NYSE: LLY ) will ... reflecting Lilly,s diverse oncology pipeline, during the American Association ... 18-22 in Philadelphia , Pa.  ... theme of this year,s AACR meeting and one that ... of therapies that accelerate the pace and progress of ...
(Date:4/20/2015)... NEW DELHI , April 20, 2015 ... a PI3K Targeting Supramolecular Therapeutic Using the VOLVOX Platform ... AM EST  -  Supramolecular Assembly of ... as Cytotoxic Payload - Presented on Sunday, Apr 19, ... a leader in supramolecular therapeutic program, today announced that ...
(Date:4/20/2015)... -- Sinovac Biotech Ltd. (Nasdaq: SVA), a leading provider ... financial results for the fourth quarter and full year ... Financial Highlights(Compared to the fourth quarter 2013) , ... 11.4% from $22.9 million in the prior year period. ... influenza vaccine of $0.1 million in the fourth quarter ...
(Date:4/20/2015)... April 20, 2015 Global Stem ... Aesthetic Meeting 2015, an annual gathering of aesthetic medicine ... M.D., is scheduled to introduce the company’s brand new ... with adipose-derived stem cell techniques. , The course ... patients in the aesthetic field, including facial aging caused ...
Breaking Biology Technology:Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 2Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 3Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 4Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 5Lilly Releases Early-Stage Pipeline Data at AACR Annual Meeting 2015 6Invictus Oncology Announces Two Posters to be Presented Describing its Platform Technology on Supramolecular Therapeutics at the American Association for Cancer Research Annual Meeting, 2015 2Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 2Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 3Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 4Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 5Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 6Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 7Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 8Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 9Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 10Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 11Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 12Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 13Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 14Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 15Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 16Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 17Sinovac Reports Unaudited Fourth Quarter and Full Year 2014 Financial Results 18Global Stem Cells Group to Host Featured Speaker at The Aesthetic Meeting 2015 in Montreal 2Global Stem Cells Group to Host Featured Speaker at The Aesthetic Meeting 2015 in Montreal 3
... are not teaching skills needed for the Information Age. Their ... that we are way beyond the Industrial Age. , ... Rs. I am not talking about reading, writing and `rithmetic; ... these add up to regimentation, which is what was needed ...
... CleanTech Partners will receive $1.5 million from the ... attempt to produce cellulosic ethanol at paper mills by extracting ... paper making. , ,Masood Akhtar, president of CleanTech Partners and ... for the grant. Other participants included the United ...
... Wis. - The origins of Madison's technology industry can ... pretty isolated when he opened DNASTAR, Inc . that year. ... Promega - and a few more, the producer of DNA ... an era where it was considered bad form - even a ...
Cached Biology Technology:Rote education fails the Information Age 2Rote education fails the Information Age 3Rote education fails the Information Age 4DNASTAR catches second wave of sequencing 2DNASTAR catches second wave of sequencing 3DNASTAR catches second wave of sequencing 4
Antibody specific for trimethyl-Lys27 of histone H3. Mouse monoclonal. Antigen: Synthetic peptide derived from histone H3, trimethylated at lysine 27...
...
...
...
Biology Products: