Navigation Links
Pitt researchers create nontoxic clean-up method for potentially toxic nano materials
Date:12/17/2008

PITTSBURGHUniversity of Pittsburgh researchers have developed the first natural, nontoxic method for biodegrading carbon nanotubes, a finding that could help diminish the environmental and health concerns that mar the otherwise bright prospects of the super-strong materials commonly used in products, from electronics to plastics.

A Pitt research team has found that carbon nanotubes deteriorate when exposed to the natural enzyme horseradish peroxidase (HRP), according to a report published recently in Nano Letters coauthored by Alexander Star, an assistant professor of chemistry in Pitt's School of Arts and Sciences, and Valerian Kagan, a professor and vice chair of the Department of Environmental and Occupational Health in Pitt's Graduate School of Public Health. These results open the door to further development of safe and natural methodswith HRP or other enzymesof cleaning up carbon nanotube spills in the environment and the industrial or laboratory setting.

Carbon nanotubes are one-atom thick rolls of graphite 100,000 times smaller than a human hair yet stronger than steel and excellent conductors of electricity and heat. They reinforce plastics, ceramics, or concrete; conduct electricity in electronics or energy-conversion devices; and are sensitive chemical sensors, Star said. (Star created an early-detection device for asthma attacks wherein carbon nanotubes detect minute amounts of nitric oxide preceding an attack.)

"The many applications of nanotubes have resulted in greater production of them, but their toxicity remains controversial," Star said. "Accidental spills of nanotubes are inevitable during their production, and the massive use of nanotube-based materials could lead to increased environmental pollution. We have demonstrated a nontoxic approach to successfully degrade carbon nanotubes in environmentally relevant conditions."

The team's work focused on nanotubes in their raw form as a fine, graphite-li
'/>"/>

Contact: Morgan Kelly
mekelly@pitt.edu
412-624-4356
University of Pittsburgh
Source:Eurekalert

Page: 1 2

Related biology technology :

1. USC researchers print dense lattice of transparent nanotube transistors on flexible base
2. J. Craig Venter Institute Researchers Publish Significant Advance in Genome Assembly Technology
3. Virginia Tech researchers discover how mosquitoes avoid succumbing to viruses they transmit
4. Alfred Mann Foundation for Biomedical Engineering Launches New Web Site Designed to Help University Researchers Bring Biomedical Advances to Market
5. 2010 Japan Prize to Honor Scientists and Researchers in Industrial Production/Production Technology and Biological Production/Environment Fields
6. Clemson researchers advance nanoscale electromechanical sensors
7. Researchers discover method for mass production of nanomaterial graphene
8. VAP(R) Cholesterol Test Helps Researchers Identify Treatment Effects of Combination Therapy
9. Ultrafast lasers give CU-Boulder researchers a snapshot of electrons in action
10. The Lancets New Online Medical Journal Helps Clinicians and Medical Researchers Find Practice-Changing Evidence Quickly and Easily
11. Researchers show how to stamp nanodevices with rubber molds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/23/2014)... July 23, 2014 Shimadzu Scientific ... amino acid analysis system developed jointly with Ajinomoto ... Station can analyze 38 amino acids in nine ... Station achieves high-speed analysis utilizing a fast application-specific ... provides accurate analytical results even under conditions with ...
(Date:7/23/2014)... , July 23, 2014 ... portfolio company of Trendlines Agtech , announced ... Israel,s leading agricultural thermoplastics ... Valentis,s technology combines nanocrystalline cellulose (NCC), ... waste, with additional nanoparticles to produce highly improved ...
(Date:7/23/2014)... , July 23, 2014  GrowBLOX Sciences, Inc. (OTCQB: ... that it is filing for two medical marijuana dispensary locations ... are in addition to the Clark County, Nevada ... special use permit, as previously announced.  GrowBLOX Sciences, ... be submitting two new applications for dispensaries in the ...
(Date:7/23/2014)... a2z Inc. announces that AACC will include ChirpE ... its 2014 Annual Meeting & Clinical Lab Expo ... July 29-31, 2014 in Chicago, IL at McCormick Place, ... global leaders in clinical chemistry, molecular diagnostics, mass spectrometry, ... science in laboratory medicine. , ChirpE Photo Booth and ...
Breaking Biology Technology:Shimadzu's New UF-Amino Station Provides High-Speed, Multi-Component Analysis of Amino Acids in Food & Beverage and Pharmaceutical Testing 2Valentis Nanotech Signs MOU to Integrate Technology in Thermoplastics Production 2GrowBLOX Sciences, Inc. Files for Two Additional Medical Marijuana Dispensaries in Las Vegas 2GrowBLOX Sciences, Inc. Files for Two Additional Medical Marijuana Dispensaries in Las Vegas 3AACC Enhances Attendee Experience at Its 2014 Annual Meeting & Clinical Lab Expo with a2z-Powered ChirpE Photo Booth and Mobile App 2AACC Enhances Attendee Experience at Its 2014 Annual Meeting & Clinical Lab Expo with a2z-Powered ChirpE Photo Booth and Mobile App 3
... Kan., April 11, 2011 Leading experts from around the ... at the 6th Canine Vector Borne Disease (CVBD) forum in ... posed to animals and humans by these increasingly important diseases. ... suffering and even death in dogs, and many CVBDs represent ...
... Holdings, Inc. ("Bacterin") (NYSE Amex: BONE ), ... 2010 Annual Report on SEC Form 10-K today.  Included ... the fourth quarter results ended  December 31, 2010, which ... the financial results reported by the Company on SEC ...
... N.J., April 8, 2011 BioNeutral Group, Inc. (OTCBB: BONU), ... of Michael D. Francis, J.D., as a new member to ... a graduate of the Wharton School of Business, University of ... of Law. He has been an attorney in the state ...
Cached Biology Technology:Veterinarians and Pet Owners Urged to Act Upon Evolving Dangers Posed by CVBDs as New Research Underlines Threats to Animals and Humans 2Veterinarians and Pet Owners Urged to Act Upon Evolving Dangers Posed by CVBDs as New Research Underlines Threats to Animals and Humans 3Veterinarians and Pet Owners Urged to Act Upon Evolving Dangers Posed by CVBDs as New Research Underlines Threats to Animals and Humans 4Bacterin International Updates Fourth Quarter and Full Year 2010 Financial Results 2Bacterin International Updates Fourth Quarter and Full Year 2010 Financial Results 3BioNeutral Appoints Michael D. Francis, J.D. as Director to the Board 2BioNeutral Appoints Michael D. Francis, J.D. as Director to the Board 3
(Date:7/23/2014)... of the movements of satellite-tagged blue whales off the ... favored feeding areas are bisected by heavily used shipping ... The researchers note that moving the shipping lanes off ... at least, during summer and fall when blue ... probability of ships striking the whales. A similar relocation ...
(Date:7/23/2014)... are disappearing, and though conservationists are examining several possible ... rain and light pollution, a key piece of the ... once they leave their breeding sites, and what threats ... answer this question, a team of researchers out of ... map produced for a songbird, using tracking from both ...
(Date:7/23/2014)... Non-biting blow fly Chrysomya megacephala is commonly ... investigations to determine the time of death, referred to ... derived form of C. megacephala from Tamil ... morphological features and molecular characterization through generation of DNA ... in the open access Biodiversity Data Journal . ...
Breaking Biology News(10 mins):15-year analysis of blue whale range off California finds conflict with shipping lanes 215-year analysis of blue whale range off California finds conflict with shipping lanes 315-year analysis of blue whale range off California finds conflict with shipping lanes 4York University researchers use bird 'backpacks' to put wood thrushes migration on the map 2Dead body feeding larvae useful in forensic investigations 2
... salamander,s natural ability to grow back severed appendages lead to ... With the help of a $6.25 million U.S. Department of ... and Mary Wright Ebaugh chair in science and engineering, will ... - Irvine and the University of Kentucky to identify the ...
... carried out by the teams of Jordi Surralls, Universitat ... Raya, Centre for Regenerative Medicine of Barcelona (CMRB); and ... Research (CIEMAT), has resulted in the generation of blood ... disease known as Fanconi anemia. The process is based ...
... underrepresented in the applicant pool for faculty positions in math, ... apply are interviewed and hired at rates equal to or ... the National Research Council. Similarly, women are underrepresented among ... tenure at the same or higher rates than men. ...
Cached Biology News:Tulane receives grant to study limb regeneration 2Genetically corrected blood cells obtained from skin cells from Fanconi anemia patients 2Women faring well in hiring process for science faculty jobs at research universities 2Women faring well in hiring process for science faculty jobs at research universities 3Women faring well in hiring process for science faculty jobs at research universities 4
Indoleamine 2,3-dioxygenase [IDO]...
E2F-5...
Mouse monoclonal [SH-A1] to S100 alpha ( Abpromise for all tested applications). entrezGeneID: 6271 SwissProtID: P23297...
Acid phosphatase (Potato). Monospecific by IEP. Some cross reactivity between Acid phosphatases of other species may occur....
Biology Products: