Navigation Links
NIST study suggests carbon nanotubes may protect DNA from oxidation
Date:11/15/2012

technique that uses high-frequency sound waves to mix solutions, break open cells or process slurries. The process can break water molecules into highly reactive agents such as hydroxyl radicals and hydrogen peroxide that are similar to the oxidative chemicals that commonly threaten mammalian cell DNA, although the experimental levels from sonication are much greater than those found naturally within cells. "In our experiment, we were looking to see if the nanotubes enhanced or deterred oxidative damage to DNA," Petersen says.

Contrary to the expectation that carbon nanotubes will damage biomolecules they contact, the researchers found that overall levels of accumulated DNA damage were significantly reduced in the solutions with nanotubes present. "This suggests that the nanotubes may provide a protective effect against oxidative damage to DNA," Petersen says.

A possible explanation for the surprising result, Petersen says, is that the carbon nanotubes may act as scavengers, binding up the oxidative species in solution and preventing them from interacting with DNA. "We also saw a decrease in DNA damage when we did ultrasonication in the presence of dimethyl sulfoxide (DMSO), a chemical compound known to be a hydroxyl radical scavenger," Petersen says.

Petersen says that a third experiment where ultrasonication was performed in the presence of DMSO and SWCNTs at the same time produced an additive effect, reducing the DNA damage levels more significantly than either treatment alone.


'/>"/>

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. New study finds milk-drinking kids reap physical benefits later in life
2. New brain gene gives us edge over apes, study suggests
3. Study investigates headshaking in horses
4. New study reveals more inspiring reasons to serve veggies at dinner
5. Nature study reveals loss of essential blood cell gene leads to anemia
6. Study sheds light on genetic clock in embryonic cells
7. Study offers new tool for incorporating water impacts into policy decisions
8. Study provides recipe for supercharging atoms with X-ray laser
9. Study documents eating of soil, raw starch in Madagascar
10. UH Case Medical Center leads international study
11. Researchers to study impacts of pollutant nitrogen on plant species diversity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NIST study suggests carbon nanotubes may protect DNA from oxidation
(Date:7/7/2015)... , June 30, 2015 ... announced the addition of the "Capacitive Fingerprint ... To this date, fingerprint sensing technology ... and fingerprint sensors are well developed. This patent ... technology. The domain of capacitive fingerprint ...
(Date:7/2/2015)... , June 25, 2015 ... of the "Next Generation Biometrics Market by Application, ... report to their offering. The next ... by 2020, at a CAGR of 17.9% between 2015 ... leading application for the market. Safran SA ...
(Date:6/29/2015)... , June 24, 2015 ... of the "Latin America Biomedical Sensors Market - ... offering. The Latin America Biomedical Sensors market ... CAGR of 2.04% over the period 2014-2020 ... adaptable to the genetic formulation of each individual. These ...
Breaking Biology News(10 mins):Worldwide Capacitive Fingerprint Sensors Patent Landscape Market Report 2015-2020 - Main IP Holders include Seiko Epson, AuthenTec, Sony and STMicroelectronics 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 2Next Generation Biometrics Market 2015 - Global Forecast to 2020 with Safran, NEC, 3M Cogent, Fujitsu & Suprema Dominating the $24 Billion Market 3Latin America Biomedical Sensors Market Report 2015-2020 2
... When we absorb new information, the human brain reshapes itself ... new knowledge kept, and how does that capacity to adapt ... senile dementia later in our lives? Dr. Yaniv Assaf ... new way to track the effect of memory on brain ...
... Arizona researchers have added another piece to the ... to treat patients in cardiac arrest, "passive ventilation" significantly ... ventilation." The study, published in an online edition ... patients who had suffered a cardiac arrest outside a ...
... Jerusalem have succeeded for the first time in devising ... mechanism that enables networks of neurons to efficiently decode ... lead to the upgrading of computer algorithms for faster ... the development of innovative treatments for auditory problems among ...
Cached Biology News:A window into the brain 2Cardiac arrest resuscitation: Passive oxygen flow better than assisted ventilation 2Hebrew U. researchers shed light on the brain mechanism responsible for processing of speech 2
(Date:7/30/2015)... DIEGO, July 30, 2015   Senomyx , Inc. ... taste science technologies to discover, develop, and commercialize novel ... industries, today reported financial results for the second quarter ... of 2015, we remain on track to achieve our ... Chief Executive Officer of the Company. "Since our last ...
(Date:7/30/2015)... ... ... As part of its 2015 growth plan and as a follow up to the recently ... Whitehouse Laboratories is pleased to announce that it has begun construction on a new Microbiological ... will be strictly dedicated to basic USP 51, USP 61, and USP 62 testing specific ...
(Date:7/29/2015)... , July 29, 2015 US-Australian drug ... ) today confirmed it is committed to progressing its ... soon as practicable and to ensure the Company delivers ... Executive Officer, Iain Ross , said the Company ... the lead pre-clinical programs, discovery programs and academic partnerships ...
(Date:7/29/2015)... ... July 29, 2015 , ... G-CON ... the launch of their 2nd generation cell therapy POD® design. The 2nd generation ... it also represents a new POD® design. , “G-CON first offered our ...
Breaking Biology Technology:SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 2SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 3SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 4SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 5SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 6SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 7SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 8SENOMYX ANNOUNCES SECOND QUARTER 2015 FINANCIAL RESULTS 9Whitehouse Labs Formally Announces Plans to Open a Microbiological Laboratory 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 2Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 3Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 4Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 5Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 6Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 7Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 8Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 9Newly Appointed Acting CEO Outlines Immediate Plans for Novogen 10G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 2G-CON Manufacturing Launches Their 2nd Generation Cell Therapy Cleanroom POD® 3
... (PDL) (Nasdaq: PDLI ) today announced that it ... $0.50 per share to all stockholders owning shares of PDL ... As previously announced, the conversion rate for the Company,s ... to 140.571 shares of common stock per $1,000 principal amount ...
... 1 Maven Biotechnologies today announced that the company ... for Allergy and Infectious Disease (NIAID), part of the ... imaging technology for label-free protein microarrays and cell-based ... through the federal stimulus package initiative for Biomedical Research, ...
... The Culex quinquefasciatus mosquito poses a significant ... elephantiasis-causing worms and encephalitis-inducing viruses. An international team of ... the SIB Swiss Institute of Bioinformatics sequenced its genome ... published in today,s issue of Science, describe results from ...
Cached Biology Technology:Maven Biotechnologies Receives $1.96 Million From the National Institutes of Health (NIH) to Develop Their LFIRE™ Label-Free Detection Technology for Proteomics 2Major disease-vector mosquito reveals the secrets of its immune system 2
... ovens are designed to create the ideal environment ... (ambient to 99.9C) , Variable speed control ... samples, whether it be for washing or hybridizing ... current temperature inside the chamber, ,is situated above ...
... magnetic particle based purification systems provide high ... any sample. They offer increased throughput and ... systems- KingFisher, KingFisher mL and KingFisher 96, ... l. Each system consists of an instrument, ...
... is the latest edition to the famous ... an extra large diameter exhaust port for ... panel allows precise setting and control of ... handling large quantities and samples , ...
... Thermo Savant SpeedVac Concentrators set the standard ... SC110A SpeedVac uses a combination of centrifugal force, ... a single run., SC110A comes equipped with:, , ... chemical compatibility , ...
Biology Products: