Navigation Links
LLNL researchers peer into water in carbon nanotubes

LIVERMORE, Calif. - Researchers have identified a signature for water inside single-walled carbon nanotubes, helping them understand how water is structured and how it moves within these tiny channels.

This is the first time researchers were able to get a snapshot of the water inside the carbon nanotubes.

Single-walled carbon nanotubes (SWCNTs) offer the potential to act as a unique nanofiltration system. While experiments have demonstrated extremely fast flow in these channels, it is still unclear why, and few studies have experimentally probed the detailed structure and movement of the water within nanotubes.

That's where Lawrence Livermore scientists Jason Holt, Julie Herberg, and University of North Carolina's, Yue Wu and colleagues come in.

As described in an article appearing in the July edition of Nanoletters, they used a technique called Nuclear Magnetic Resonance (NMR) to get a glimpse of the water confined inside one-nanometer diameter SWCNTs.

The nanotubes, special molecules made of carbon atoms in a unique arrangement, are hollow and more than 50,000 times thinner than a human hair. The confined water exhibited very different properties from that of bulk water, and this allowed it to be distinguished in the NMR spectrum.

Carbon nanotubes have long been touted for their superior thermal, mechanical and electrical properties, but recent work suggests they can be used as nanoscale filters.

Earlier Livermore studies have suggested that carbon nanotubes may be used for desalination and demineralization because of their small pore size and enhanced flow properties. Conventional desalination membranes are typically much less permeable and require large pressures, entailing high energy costs. However, these more permeable nanotube membranes could reduce the energy costs of desalination significantly.

While the technology offers great promise, there still are important unanswered scientific questions.

"There have been many predictions about how water behaves within carbon nanotubes," said Holt, the principal investigator of the project, which is funded through LLNL's Laboratory Directed Research and Development (LDRD). "With experiments like these, we can directly probe that water and determine how close those predictions were."


Contact: Anne Stark
DOE/Lawrence Livermore National Laboratory

Related biology technology :

1. HistoRx Announces Expanded Access of AQUA(R) Technology to 900+ Researchers at Dana-Farber/Harvard Cancer Center
2. First Annual Autism Conference at Packard Childrens and Stanford Brings Parents and Researchers Together
3. Researchers bring new meaning to the term computer bug
4. By adding graphene, researchers create superior polymer
5. Researchers Document Rapid, Dramatic Reverse Evolution in the Threespine Stickleback Fish
6. Glowing zebrafish help researchers track role of sugars in the cell
7. Researchers develop method for transmitting medical images via cell phones
8. Researchers create the first thermal nanomotor in the world
9. U-Md. Researchers Report Advance in Biological Microfactories for Drug Research
10. Boston College, MIT researchers achieve dramatic increase in thermoelectric efficiency
11. Iowa State researchers developing system to efficiently convert biomass to ethanol
Post Your Comments:
(Date:11/26/2015)... MUMBAI , November 26, 2015 ... --> Accutest Research ... accredited Contract Research Organization (CRO), has ... Chase Cancer Center - Temple Health ... ,     (Photo: ) ...
(Date:11/25/2015)... BRUSSELS , November 25, 2015 ... in cat and human plaque and pave the way for ... health problems in cats     ... the most commonly diagnosed health problems in cats, yet relatively ... until now. Two collaborative studies have been conducted by researchers ...
(Date:11/25/2015)... Orexigen® Therapeutics, Inc. (Nasdaq: OREX ) ... chat discussion at the Piper Jaffray 27th Annual Healthcare ... discussion is scheduled for Wednesday, December 2, at 8:00 ... replay will be available for 14 days after the ... NormartVP, Corporate Communications and Business Development , BrewLife(858) 875-8629 ...
(Date:11/24/2015)... Calif. , Nov. 24, 2015 Cepheid ... will be speaking at the following conference, and invited ... New York, NY      Tuesday, December 1, 2015 ... New York, NY      Tuesday, December 1, 2015 ... Jaffray Healthcare Conference, New York, NY ...
Breaking Biology Technology:
(Date:10/27/2015)... , Oct. 27, 2015 Synaptics Inc. (NASDAQ: ... today announced that Google has adopted the Synaptics ® ... controller solutions to power its newest flagship smartphones, the ... Huawei. --> --> ... Google to provide strategic collaboration in the joint development ...
(Date:10/26/2015)... LAS VEGAS , Oct. 26, 2015 ... an innovator in modern authentication and a founding member ... launch of its latest version of the Nok Nok™ ... to use standards-based authentication that supports existing and emerging ... Suite is ideal for organizations deploying customer-facing applications that ...
(Date:10/23/2015)... DUBLIN , Oct. 23, 2015 Research ... of the "Global Voice Recognition Biometrics Market 2015-2019" ... --> --> The global voice recognition ... during 2014-2019. --> ... 2015-2019, has been prepared based on an in-depth market ...
Breaking Biology News(10 mins):