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:10/18/2014)... In a sample of patients with undiagnosed, suspected genetic ... associated with a higher molecular diagnostic yield than traditional ... JAMA . The study is being released to ... meeting. , Exome sequencing, which sequences the protein­coding region ... genetic material present in a cell or organism), has ...
(Date:10/17/2014)... . Why do ... to reproduce? And why are there two sexes anyway? These ... of the research journal Molecular Human Reproduction published ... Bielefeld University Bielefeld has compiled this special issue on sperm ... to copulate with several males in quick succession – chimpanzees ...
(Date:10/17/2014)... available in German . ... few drugs. When treating overdoses, doctors are often limited to ... if there is a combination of drugs involved. So what ... swallows his grandmother,s pills? ETH professor Jean-Christophe Leroux from the ... an answer to this question. "The task was to develop ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Sperm wars 2Emergency aid for overdoses 2Emergency aid for overdoses 3
... (Santa Barbara, Calif.) Viruses fill the ocean ... marine microbiology, according to a professor of biology at ... Carlson, professor with UCSB,s Department of Ecology, Evolution, and ... of marine viruses published this week by the ...
... transport system inside living cells is a well-oiled machine with ... around the cell. These molecular motors are responsible for a ... on the go. They can put themselves into "energy save ... what gets moved around the cell, and when. ...
... is available in Spanish . A ... what is causing the decline in bumble bee populations and ... the next generation of greenhouse pollinators. Bumble bees, like ... used to pollinate greenhouse crops like peppers and tomatoes. But ...
Cached Biology News:Decade-long study reveals recurring patterns of viruses in the open ocean 2Decade-long study reveals recurring patterns of viruses in the open ocean 3Carnegie Mellon scientists discover how molecular motors go into 'energy save mode' 2Carnegie Mellon scientists discover how molecular motors go into 'energy save mode' 3The flight of the bumble bee: Why are they disappearing? 2
(Date:10/20/2014)... 20, 2014 Convey Computer , ... team from Iowa State University won first place in ... a Convey HC-2ex, the team’s solution achieved the highest ... than the second place finisher. , Experts from all ... the month long challenge, using a variety of design ...
(Date:10/20/2014)... GUELPH, ON , Oct. 20, 2014 /PRNewswire/ - BIOREM Inc. ... totalling $1.7 million which brings Q3 orders to $5.8 million and ... odour control projects in North America and ... "We continue to bid new projects at record levels," said ... values were higher at the end of Q3 than they have ...
(Date:10/20/2014)... 2014  GenVec, Inc. (NASDAQ: GNVC ) today ... from its board of directors effective on October 24, 2014.  ... served as its chairman from June 2006 to November 2013.  ... Corporate Governance and Audit Committees of the board.  ... of dedicated service to GenVec, and its stockholders," said ...
(Date:10/20/2014)... OncLive® is pleased ... at Thomas Jefferson University has joined its Strategic ... Alliance Partnership program, the Sidney Kimmel Cancer Center ... awareness of the Center’s cutting-edge research programs, comprehensive ... and other health care professionals from the Sidney ...
Breaking Biology Technology:Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Zola P. Horovitz To Retire From GenVec Board 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
... Another Key Regulatory MilestoneLONDON, March 10 Monsanto,s historic ... and biotechnology has contributed to a 24 percent compound ... segment since 2001. This is one of the ... Commercial, will tell investors today as part of a ...
... has long been known for its world-record-breaking carbon ... have discovered new uses by spinning carbon nanotubes ... , Breakthroughs Without Broken Threads ... to grow carbon nanotubes of world-record breaking lengths, ...
... American Pacific Corporation (Nasdaq: APFC ) is ... Chemicals LLC (AFC), located near Sacramento California, recently inaugurated ... The new facility can accommodate either batch reactors (20 ... using up to 7 reactors from 0.25 to 1 ...
Cached Biology Technology:Monsanto's Historic R&D Investment has Contributed to Mid-20s Gross Profit Growth for Its Seeds and Genomics Segment 2Monsanto's Historic R&D Investment has Contributed to Mid-20s Gross Profit Growth for Its Seeds and Genomics Segment 3Spinning carbon nanotubes spawns new wireless applications 2AMPAC Fine Chemicals Announces the Inauguration of the New cGMP Continuous Processing Development Facility 2
... is an evolutionarily conserved form of cell ... The central component of this process ... caspases. These enzymes participate in a ... response to pro-apoptotic signals and result in ...
... is manufactured for DNA purification from agarose ... UV light. The Purification of DNA from ... DNA-cloning work. The conventional method of visualizing ... UV light damages DNA and significantly decreases ...
...
CleanBox DNA workstation with two 254nm UV lambs & 12-hr timer, 90cm (36-inch)width, single door, 115V (w/crating)...
Biology Products: