Navigation Links
Brightening prospects of using fluorescent nanotubes in medical applications

In a way, nanotubes are nature’s smallest candles.

These tiny tubes are constructed from carbon atoms and they are so small that it takes about 100,000 laid side-by-side to span the width of a single human hair. In the last five years, scientists have discovered that some individual nanotubes are fluorescent. That is, they glow when they are bathed in light. Some glow brightly. Others glow dimly. Some glow in spots. Others glow all over.

Until now, this property has been largely academic. But researchers from the Vanderbilt Institute of Nanoscale Science and Engineering (VINSE) have removed an obstacle that has restricted fluorescent nanotubes from a variety of medical applications, including anti-cancer treatments. In a paper published online in the Journal of the American Chemical Society on June 7, they describe a method that can successfully produce large batches of highly fluorescent nanotubes.

“Nanotubes have a number of characteristics that make them particularly suitable for use as contrast agents in cells and tissues,” says Tobias Hertel, the associate professor of physics who headed the research. “Now that we know how to separate out the brightest ones, I hope that researchers will begin considering ways to use them in clinical applications.”

The figure of merit for fluorescence is quantum efficiency: the ratio of the number of photons of light that a device emits to the number of photons it absorbs in the process. The VINSE team reports that they can produce populations containing trillions of nanotubes with a quantum efficiency of 1 percent, a factor of 100 better than previous ensemble measurements and close to the best quantum efficiencies reported for individual nanotubes.

The methods researchers use to produce nanotubes creates soot that contains a number of different types of nanotubes: metallic, semiconducting, double-walled, single-walled, etc. Of these, only the single-walled semiconducting nanotubes
'"/>

Source:Vanderbilt University


Page: 1 2 3

Related biology news :

1. Therapeutic prospects beyond Vioxx
2. University of Manchester makes made-to-measure skin and bones a reality using inkjet printers
3. Purdue proves concept of using nano-materials for drug discovery
4. An entropy-based gene selection method for cancer classification using microarray data
5. Newly Discovered Compound Blocks Known Cancer-Causing Protein
6. New methods of gene delivery using lasers
7. Doctors closer to using gene analysis to help trauma patients
8. PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information
9. Researchers pioneer new gene therapy technique using natural repair process
10. New technique rapidly detects illness-causing bacteria
11. Researchers at UGA provide first look at protein expression in Chagas disease-causing parasites
Post Your Comments:
(Date:8/21/2014)... American singles found that during sex with a ... On average, men experience orgasm 85.1 percent of ... difference. For women, however, orgasm occurrence is less ... of the time during sex with a familiar ... sexual orientation, with lesbian women experiencing orgasm more ...
(Date:8/21/2014)... 2014 /PRNewswire-iReach/ -- LiveScan Service Provider  Binary ... a partnership with Gabriel Health Institute, one of ... Certified Nursing Assistant preparatory schools. The agreement ... member of Binary,s LiveScan service provider,s owner/operator team; ... its service capabilities by widening the service ...
(Date:8/21/2014)... window? It consists of radiations in the 3.3 to ... water in biological tissues. New theoretical findings show that ... water window. These could be the basis of an ... biological samples or to be used in high-precision spectroscopy. ... needed to efficiently generate the harmonic radiationswhich are multiples ...
Breaking Biology News(10 mins):Orgasm rates for single women less predictable than men's, vary by sexual orientation 2Orgasm rates for single women less predictable than men's, vary by sexual orientation 3Orgasm rates for single women less predictable than men's, vary by sexual orientation 4LiveScan Provider Binary Biometrics Announces Partnership with Preeminent CNA School, Gabriel Health Institute to Expand Services in Orlando Region 2LiveScan Provider Binary Biometrics Announces Partnership with Preeminent CNA School, Gabriel Health Institute to Expand Services in Orlando Region 3Water window imaging opportunity 2
... dynamic world of the developing brain, neural stem cells give ... newborn neurons then migrate along the stem cell fibers up ... scientists have discovered a key mechanism of this migration ... developmental processes and diseases, including cancer. The finding, ...
... the much larger marsupial thylacine by being better built ... large prey, say Australian scientists. Despite being armed ... larger energy needs than the dingo, the thylacine was ... stronger head and neck anatomy allowed it to subdue ...
... BOSTON (Sept. 5, 2007) Steady increases in ... decades, as well as rates of Type 2 ... Mayer USDA Human Nutrition Research Center on Aging ... explore the relationship between sugar-sweetened beverage consumption and ...
Cached Biology News:Neural stem cell study reveals mechanism that may play role in cancer 2Neural stem cell study reveals mechanism that may play role in cancer 3Neural stem cell study reveals mechanism that may play role in cancer 4Tassie tiger no match for dingo 2Sugary drinks, not fruit juice, may be linked to insulin 2Sugary drinks, not fruit juice, may be linked to insulin 3
(Date:8/21/2014)... , Aug. 21, 2014  China Cord Blood Corporation (NYSE: ... plan to release financial results for the first quarter ... after market close in the US.  ... a.m. ET on Friday, August 29, 2014 to discuss ... the Company,s recent developments, followed by a question and ...
(Date:8/21/2014)... August 21, 2014 Gallus ... contract development and manufacturing organization (CMO) announced today ... Inc., an oncology company focused on the development ... to manufacture the anti-prostate specific membrane antigen (PSMA) ... candidate. Under the agreement the antibody will ...
(Date:8/20/2014)... patented university inventions licensed to biotechnology firms has ... To open these roadblocks, the researchers suggest that ... discovery stage could lead to faster commercialization down ... from discoveries made in university laboratories and licensed ... clinical trials, which have a high failure rate. ...
(Date:8/20/2014)... (PRWEB) August 20, 2014 High ... and apply the most complete climate and Earth ... demanding climate change issues. , Eight national laboratories, ... with the National Center for Atmospheric Research, four ... new effort. Other participating national laboratories include Argonne, ...
Breaking Biology Technology:China Cord Blood Corporation to Report First Quarter of Fiscal 2015 Financial Results 2Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 2Gallus Enters Agreement with Progenics Pharmaceuticals, Inc. for Manufacture of Anti-PSMA Monoclonal Antibody 3Early bottlenecks in developing biopharmaceutical products delay commercialization 2Early bottlenecks in developing biopharmaceutical products delay commercialization 3New Project Is the ACME of Addressing Climate Change 2New Project Is the ACME of Addressing Climate Change 3
... Systems, Inc (OTC: OMCM.OB) today announced that it ranked ... of 500 of the fastest growing technology, media, telecommunications, ... Rankings are based on the percentage of fiscal year ... 445 percent during this period. OmniComm,s CEO, ...
... Beating the flu is already tough, but it has become even ... so that two antiviral drugs don,t slow it down anymore. ... Florida State and Brigham Young move closer to understanding why not, ... how it changes. The two drugs, amantadine and rimantadine, are ...
... and existing in the limbo between a solid and a ... efficiency of chemical catalysts that can create better nanoparticles or ... transitional state, a catalyst can achieve its utmost potential with ... to a pair of Duke University researchers. A catalyst is ...
Cached Biology Technology:OmniComm Ranks Number 220 on Deloitte's 2010 Technology Fast 500 for Fastest Growing Companies in North America 2OmniComm Ranks Number 220 on Deloitte's 2010 Technology Fast 500 for Fastest Growing Companies in North America 3Putting a bull's-eye on the flu: Detailing influenza's structure for drug targeting 2Smaller is better in the viscous zone 2