Navigation Links
Carbon nanostructures -- elixir or poison?
Date:3/31/2010

ain buckyball.

The researchers found that cells exposed to the tris configuration underwent premature senescencewhat might be described as a state of suspended animation. In other words, the cells did not die as cells normally should, nor did they divide or grow. This arrest of the natural cellular life cycle after exposure to the tris-configured buckyballs may compromise normal organ development, leading to disease within a living organism. In short, the tris buckyballs were toxic to human skin cells.

Moreover, the cells exposed to the tris arrangement caused unique molecular level responses suggesting that tris-fullerenes may potentially interfere with normal immune responses induced by viruses. The team is now pursuing research to determine if cells exposed to this form of fullerenes may be more susceptible to viral infections.

Ironically, the discovery could also lead to a novel treatment strategy for combating several debilitating diseases. In diseases like Parkinson's or Alzheimer's, nerve cells die or degenerate to a nonfunctional state. A mechanism to induce senescence in specific nerve cells could delay or eliminate onset of the diseases. Similarly, a disease like cancer, which spreads and thrives through unregulated replication of cancer cells, might be fought through induced senescence. This strategy could stop the cells from dividing and provide doctors with more time to kill the abnormal cells.

Because of the minute size of nanomaterials, the primary hazard associated with them has been potential inhalationsimilar to the concern over asbestos exposure.

"Already, from a toxicological point of view, this research is useful because it shows that if you have the choice to use a tris- or a hexa-arrangement for an application involving buckyballs, the hexa-arrangement is probably the better choice," said Iyer. "These studies may provide guidance for new nanomaterial design and development."

These result
'/>"/>

Contact: James E. Rickman
jamesr@lanl.gov
505-665-9203
DOE/Los Alamos National Laboratory
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. New study warns limited carbon market puts 20 percent of tropical forest at risk
2. Mice use specialized neurons to detect carbon dioxide in the air
3. Researchers find new taste in fruit flies: carbonated water
4. Studying component parts of living cells with carbon nanotube cellular probes
5. New membrane strips carbon dioxide from natural gas faster and better
6. Green alga genome project catalogs carbon capture machinery
7. Hungry microbes share out the carbon in the roots of plants
8. Decline in uptake of carbon emissions confirmed
9. Study reveals that nitrogen fertilizers deplete soil organic carbon
10. US fires release large amounts of carbon dioxide
11. Wildfire drives carbon levels in northern forests
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/17/2015)... , March 17, 2015  MecklerMedia Corporation (OTCQX: ... exhibition for service robots ever held in ... place on May 11-13, 2015 at the Javits ... for the event include: Acorn Product Development; Axis ... Infranor; Kinova Robotics; Littler; NewBotic Corporation; Neya Systems ...
(Date:3/12/2015)... , March 12, 2015 IriTech, a ... a member of the Texas Instruments Design Network, announced ... has demonstrated its IriShield USB MK2120U device during ... facility for pension distribution. The iris ... to be marketed in India ...
(Date:3/12/2015)... , March 12, 2015 ... standardized identity and access management (IAM) solution for ... schedule. With Beta System,s new IAM package, customers ... practices gleaned from multiple IAM implementations across different ... software as well as any necessary services and ...
Breaking Biology News(10 mins):MecklerMedia's RoboUniverse New York Announces Sponsors and Exhibitors, May 11-13, 2015 2Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 2Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 3Beta Systems Fast Forward IAM Available Now: a Standardized IAM Package at a Fixed Price 2
... (Aug. 8, 2013) Female mice who were growth restricted in ... less active and prone to obesity as adults, said researchers from ... Nutrition Research Center (CNRC) at BCM and Texas Children,s ... International Journal of Obesity . "Given that ...
... In a world full of hungry predators, prey animals ... face a particular challenge when it comes to defending themselves. ... interesting is that they can,t run away," says John Orrock, ... run, you can,t necessarily hide, so what can you do? ...
... recovery efforts following the devastating effects of the 2011 tsunami ... within the reactor,s core. A study in the journal ... Alamos National Laboratory (LANL) shows that muon imaging may offer ... and locating the melted fuel. Muon imaging, which utilizes ...
Cached Biology News:Kids born small should get moving 2Eavesdropping plants prepare to be attacked 2Getting to the core of Fukushima 2
(Date:3/25/2015)... SHANGHAI , CAMBRIDGE, Mass. and ... -- WuXi NextCODE, which provides comprehensive capabilities for using the ... deCODE genetics on their publication of the largest studies of ... published today online in Nature Genetics ... date of sequence variation, authored by a team of deCODE ...
(Date:3/25/2015)... Fla. , March 25, 2015  Point-of-Care ... and management consulting firm, has launched the ePrescribing ... to simplify tracking of ePrescribing regulatory requirements in ... "The ePrescribing regulatory landscape continues to change rapidly, ... deliver what the industry, and ultimately patients, need," ...
(Date:3/25/2015)... (PRWEB) March 25, 2015 Having added ... the latter part of 2014, ITRA Global proudly announced ... the International Tenant Representative Alliance, based in the United ... representing tenants and occupiers of commercial real estate. , ... advisory firm in Poland that exclusively advises occupiers of ...
(Date:3/25/2015)... HAGUE, Netherlands , March 25, 2015  EndoStim ... for chronic gastro-esophageal reflux disease (GERD) in the March ... Surgery . 2015; 157(3):556-567 ], establishing the long term ... The study included 25 patients with severe GERD ... prescribed daily proton pump inhibitor (PPI) medication for an ...
Breaking Biology Technology:Landmark deCODE Studies Demonstrate the Power of Truly Big Genomics for Improving Medicine Worldwide 2Point-of-Care Partners Launches the ePrescribing State Law Capsule 2International Organization Expands its Global Reach to Warsaw, Poland 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 2EndoStim LES Stimulation therapy demonstrates long term safety and efficacy results in treating reflux patients 3
... got turned on its head again last week, as British ... aircraft. For the vast majority of U.S. travelers, new regulations ... have toothpaste and shampoo when they arrive at their destinations ... at airport arrivals terminals). For the sake of security, well ...
... according to schedule, the newest multimillion-dollar research institution at ... sometime after 2010. , ,But even as architects design ... leaders are busy forging its identity. , ,Marsha Seltzer, ... as interim director of WID, a $375 million multidisciplinary ...
... After months of speculation, North Prairie Productions, LLC , ... site for a biodiesel plant that will produce 45 million ... construction on the $42 million facility next spring on about ... it will relocate its Waterloo offices. , ,The site ...
Cached Biology Technology:Opportunities rise from travel chaos 2Waisman director leading early stages of the Wisconsin Institutes for Discovery 2Waisman director leading early stages of the Wisconsin Institutes for Discovery 3Evansville site chosen for biodiesel plant 2
... shaker flask clips, purpose-designed to firmly retain ... clips are equipped with a top retainer ... a bottom retainer spring, and silicon tubing ... glassware. Clips include the required mounting ...
RABBIT ANTI HUMAN ALPHA-2-ANTIPLASMIN...
... Bullseye Red Taq DNA Polymerase ... exhibits very high activity in primer extension ... contains a red dye which provides easy ... enzyme was added and allows confirmation of ...
RNA oligomers from 10 to 50 bases purified by PAGE and MS-checked. RNAs are supplied dried and fully deprotected....
Biology Products: