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

A Los Alamos National Laboratory toxicologist and a multidisciplinary team of researchers have documented potential cellular damage from "fullerenes"soccer-ball-shaped, cage-like molecules composed of 60 carbon atoms. The team also noted that this particular type of damage might hold hope for treatment of Parkinson's disease, Alzheimer's disease, or even cancer.

The research recently appeared in Toxicology and Applied Pharmacology and represents the first-ever observation of this kind for spherical fullerenes, also known as buckyballs, which take their names from the late Buckminster Fuller because they resemble the geodesic dome concept that he popularized.

Engineered carbon nanoparticles, which include fullerenes, are increasing in use worldwide. Each buckyball is a skeletal cage of carbon about the size of a virus. They show potential for creating stronger, lighter structures or acting as tiny delivery mechanisms for designer drugs or antibiotics, among other uses. About four to five tons of carbon nanoparticles are manufactured annually.

"Nanomaterials are the 21st century revolution," said Los Alamos toxicologist Rashi Iyer, the principal research lead and coauthor of the paper. "We are going to have to live with them and deal with them, and the question becomes, 'How are we going to maximize our use of these materials and minimize their impact on us and the environment?'"

Iyer and lead author Jun Gao, also a Los Alamos toxicologist, exposed cultured human skin cells to several distinct types of buckyballs. The differences in the buckyballs lay in the spatial arrangement of short branches of molecules coming off of the main buckyball structure. One buckyball variation, called the "tris" configuration, had three molecular branches off the main structure on one hemisphere; another variation, called the "hexa" configuration, had six branches off the main structure in a roughly symmetrical arrangement; the last type was a pl
'/>"/>

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:9/18/2014)... are the ideal animal in which to study the ... ocean into tens of thousands of freshwater streams and ... to adapt to the new environment. , Breeding studies ... turned up one of the genes that controls tooth ... gene,s regulation in a freshwater population is associated with ...
(Date:9/17/2014)... creation of the Santa Ana Wildfire Threat Index ... of the powerful, hot, dry Santa Ana wind, which ... was introduced Sept. 17 by the U.S. Forest Service, ... Electric. , The index includes four classification levels ranging ... help fire agencies and other emergency responders, the media ...
(Date:9/17/2014)... USA -- "Nature has developed, very cleverly, some lessons ... in optical design," said Joseph Shaw, director of the ... explore surfaces and structures at the nanoscale, we,ll discover ... San Diego in August during a conference called "The ... and Rongguang Liang of the University of Arizona College ...
Breaking Biology News(10 mins):Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 2Counting fish teeth reveals regulatory DNA changes behind rapid evolution, adaptation 3UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2Nature's designs inspire research into new light-based technologies 2Nature's designs inspire research into new light-based technologies 3
... LA Research led by Lauren Cole, a public ... of Public Health and Director of the Epidemiology Program ... the incidence of head and neck cancer has risen ... with the greatest increase among middle-aged white men. At ...
... gene called XRCC2 cause increased breast cancer risk, according to ... Human Genetics . The study looked at families that have ... in the currently known breast cancer susceptibility genes. Sean ... professor in the Department of Oncological Sciences at the University ...
... such as the Iberian lynx, are under an increasingly serious ... that can even survive in extremely arid environments. A study ... to adapt according to climate. The life cycle of ... patterns of people and goods. These parasites and the pathogens ...
Cached Biology News:LSUHSC research finds HPV-related head & neck cancers rising, highest in middle-aged white men 2A new breast cancer susceptibility gene 2Ticks can adapt to the Spain's climatic diversity 2
(Date:9/18/2014)... Sept. 18, 2014 Research and Markets ... Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market ... their offering. The global companion diagnostics ... 22.7% from 2014 to 2019. Factors such as rising ... of companion diagnostics by the pharmaceutical industry, support from ...
(Date:9/18/2014)... 18, 2014  MEI Pharma, Inc. (Nasdaq: MEIP ... novel therapies for cancer, announced today that Daniel P. ... at BioCentury,s NewsMakers in the Biotech Industry conference ... from the Millennium Broadway Hotel & Conference Center in ... presentation can be accessed at www.meipharma.com . A replay ...
(Date:9/18/2014)... 18 septembre 2014 Mapi, société créée ... 1974, a été depuis 40 ans l,un ... cliniques traditionnelles par des évaluations recentrées sur ... les impacts économiques des traitements. ... A cours d,une récente conférence téléphonique ...
(Date:9/18/2014)... SeqLL Inc., the owner of the ... the closing of a $1M Series-A funding round. ... Technologies, will increase the power of tSMS™ technology ... March 2013 by Daniel Jones, a former Field ... SeqLL has continued to offer Helicos’ sequencing technology, ...
Breaking Biology Technology:Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 2Global Companion Diagnostics (Polymerase Chain Reaction, In-situ hybridization, Immunohistochemistry) Market - Trends & Forecasts to 2019 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 31974 - 2014 - Mapi fête ses 40 ans 2SeqLL Closes Series-A Funding Round for Expansion of Single Molecule Sequencing 2
... University of Wisconsin Medical Foundation is initiating ... Foundation's clinical data and to improve the reliability of ... QDX Platform V Integration Services from Quovadx, ... in Englewood, Colorado. , ,The Medical Foundations growth ...
... of single-molecule DNA analysis technology, announced Thursday it has commenced ... tumor, known as oligodendroglioma. OpGen, based in Madison, is working ... of genetics and chemistry at the University of Wisconsin-Madison and ... mapping, invented by Schwartz, will enable researchers to determine how ...
... weeks ago, I referred to offshore outsourcing as an ... an issue de lannee (an election year at that ... questions about the economic future of the U.S. Prominent ... the contenders for the Democratic presidential nomination to the ...
Cached Biology Technology:UW Medical Foundation Integrates Medical Records 2OpGen joins UW, Henry Ford Heath in Improving Brain Tumor Treatment 2The Great Offshore Outsourcing Debate 2
Hybridizer (220 V) For more information, please visit Dako' web-site. EU regulatory status: CE US regulatory status: IVD...
... The involvement of integrins in vascular proliferation, ... The integrin family of cell adhesion receptors ... composed of an a and b subunit ... structure and functional diversity of the integrin ...
... exchange media are rigid macroporous hydrophilic media. ... rates at moderate pressures, while the macroporous ... the hydrophilic matrix reduces nonspecific binding. Macro-Prep ... anion exchanger with very high flow rates ...
... siRNA --- a cocktail of 3 siRNAs ... interestis our most popular product. The siTrio ... knockdown of your target gene when used ... transfection and confirmation of optimal transfection with ...
Biology Products: