HOME >> BIOLOGY >> NEWS
Nanotubes glow, even within biological cells

HOUSTON, Dec. 8, 2004 -- In some of the first work documenting the uptake of carbon nanotubes by living cells, a team of chemists and life scientists from Rice University, the University of Texas Health Science Center at Houston and the Texas Heart Institute have selectively detected low concentrations of nanotubes in laboratory cell cultures.

The research appears in the Dec. 8 issue of the Journal of the American Chemical Society. It suggests that the white blood cells, which were incubated in dilute solutions of nanotubes, treated the nanotubes as they would other extracellular particles actively ingesting them and sealing them off inside chambers known as phagosomes.

"Our goal in doing the experiment was both to learn how the biological function of the cells was affected by the nanotubes and to see if the fluorescent properties of the nanotubes would change inside a living cell," said lead researcher Bruce Weisman, professor of chemistry at Rice. "On the first point, we found no adverse effects on the cells, and on the second, we found that the nanotubes retained their unique optical properties, which allowed us to use a specialized microscope tuned to the near-infrared to pinpoint their locations within the cells."

The research builds upon Weisman's groundbreaking 2002 discovery that each of the dozens of varieties of semiconducting, single-walled carbon nanotubes (SWNTs) emits its own unique fluorescent signature.

The new findings suggest that SWNTs might be valuable biological imaging agents, in part because SWNTs fluoresce in the near-infrared portion of the spectrum, at wavelengths not normally emitted by biological tissues. This may allow light from even a handful of nanotubes to be selectively detected from within the body.

Carbon nanotubes are cylinders of carbon atoms that measure about one nanometer, or one-billionth of a meter, in diameter. They are larger than a molecule of water, but are about
'"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
9-Dec-2004


Page: 1 2

Related biology news :

1. Nanotubes used for first time to send signals to nerve cells
2. Nanotubes inspire new technique for healing broken bones
3. Gut check: Tracking the ecosystem within us
4. Study provides first genetic evidence of long-lived African presence within Britain
5. How are phenotypic differences between sexes related to phenotypic variation within sexes?
6. Antarctic research within the International Polar Year IPY 2007/08
7. Nerve fibers need specific growth factor chemical to form connections within the brain
8. Scientists discover a genetic code for organizing DNA within the nucleus
9. Drug dials down the energy within cells, UM researchers find
10. Rockefeller researchers discover a biological clock within a clock
11. Duke scientists explain gaps in nutrient availability within North Atlantic

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Nanotubes glow even within biological cells

(Date:6/29/2015)... Research and Markets( http://www.researchandmarkets.com/research/zj7h4f/latin_america ) has ... Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... Biomedical Sensors market is estimated at $0.65 billion by ... 2014-2020 The near future will bring Biomedical ... each individual. These sensors can be set to trigger ...
(Date:6/24/2015)... June 24, 2015 The biologics safety testing ... drivers for the market include growth of the pharmaceutical ... drug launches. Over the years, the number of drug ... and 2010, the FDA approved 225 drug applications and ... Europe accounted for 3,822 of ...
(Date:6/23/2015)... MINNETONKA, Minn. , June 23, 2015 /PRNewswire/ ... technology company that supports the entire spectrum of ... iMedNet ™ , the company,s ... has been awarded a Silver 2015 Stevie® Award ... the Health Products & Services Website category.  The ...
Breaking Biology News(10 mins):Latin America Biomedical Sensors Market Report 2015-2020 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2
(Date:7/1/2015)... BANGALORE, India , July 1, 2015 ... that uses next generation sequencing technology to empower cancer ... Storrer as chief executive officer. In his expanded ... responsible for all strategy, business expansion and worldwide operations ... served as Strand,s chairman and CEO since its founding ...
(Date:7/1/2015)... -- InferMed , s ... will augment ... olutions suite   Elsevier , a ... services, announced today the acquisition of  InferMed , a ... InferMed,s Arezzo technology supports clinicians in choosing the ...
(Date:6/30/2015)... ... June 30, 2015 , ... Students and ... in the first half of “Integrative Biotechnology,” an applied biotechnology course team-taught by ... 2014, this course combines students from both universities and is taught on both ...
(Date:6/30/2015)... -- Today, Americord Registry, one of the fastest growing cord blood ... partner at Kirkland & Ellis LLP, as the newest member ... http://photos.prnewswire.com/prnh/20150630/226958LOGO   "We are thrilled about Andrew ... Smithmyer , CEO of Americord. "He brings a wealth of ... Americord,s growth and vision." Andrew Horne ...
Breaking Biology Technology:Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 2Strand Life Sciences Names Scott A. Storrer CEO as Company Continues Global Expansion with Focus on Precision Medicine Product 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4Rivier University and Beijing City University Academic and Cultural Exchanges Begin 2Americord Registry Announces Andrew Horne as Advisory Board Member 2
Cached News: