Navigation Links
'Sifting' liquid at the molecular level
Date:7/17/2012

Drexel University engineers continue to drive research into the use of carbon nanotubes, straw-like structures that are more than 1,000 times thinner than a single human hair. Their most recent development uses the tiny tubes to separate liquids within a solution.

The researchers have shown that individual carbon nanotubes can act as a separation channel that would force two differing molecules to separate as easily as oil and water. For example, the molecules that comprise two chemically distinct liquids will interact differently with the walls of the nanotube as the liquids flow through it. This will cause one of the liquids to drain through the nanoscale straw faster than the other, thus forcing a separation between the two liquids.

This technology could prove useful in a number of applications, including forensic studies with very small sample sizes and studying molecules extracted from individual cells. Forensic experts would be able to analyze trace evidence, even down to a single cell or invisible stains.

"We believe that this research will lead to development of tools for analysis on single living cells and push the limits of analytical chemistry to even smaller scales and to single organelle columns," said Dr. Yury Gogotsi, director of the A.J. Drexel Nanotechnology Institute.

Gogotsi and Dr. Gary Friedman, director of the Drexel Plasma Medicine Lab and a professor of electrical and computer engineering, were the lead researchers on a study about applications of nanotubes for cellular chromatography that was recently published in Nature Publishing Group's Scientific Reports. The research was funded by a grant from W.M. Keck Foundation and the National Science Foundation's National Interdisciplinary Research Teams program.

The carbon nanotubes used in this study measure as small as 70 nanometers in outer diameter and are currently the smallest chromatography columns ever made. The carbon nanotube columns are mechanically robust and are able to withstand repeated bending and compression. These characteristics are vital for applications at the cellular level, as the tiny tubes' durability allows them to penetrate cell membranes.

Continued nanotube research by Drexel engineers will examine the development of electrochemical and optical tools.


'/>"/>

Contact: Britt Faulstick
bef29@drexel.edu
215-895-2617
Drexel University
Source:Eurekalert

Related biology technology :

1. First atomic-scale real-time movies of platinum nanocrystal growth in liquids
2. Are those liquids explosive?
3. Liquid, Ammonium Ion-Free Glutathione Reductase Enzyme Introduced by Bio-Research Products
4. Neogen launches the fastest molecular pathogen test
5. Strange cousins: Molecular alternatives to DNA, RNA offer new insight into lifes origins
6. GenScript Rush Gene Synthesis - Driving Molecular Biology Research Faster
7. Molecular graphene heralds new era of designer electrons
8. Molecular Detection Inc. Completes $1.5 Million Financing to Advance New Tests for Sepsis and GI Disorders
9. New England Biolabs Signs Agreement with Synthetic Genomics Inc. to Launch Gibson Assembly™ Master Mix for Molecular and Synthetic Biology Applications
10. Accelerate Brain Cancer Cure and Exosome Diagnostics Collaborate to Advance Clinical Studies of Exosome Biofluid Molecular Diagnostics Technology in Brain Cancer
11. Life Technologies Partners With DaAn Gene to Develop and Commercialize Molecular Diagnostic Assays in China
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/11/2017)... ... October 11, 2017 , ... ComplianceOnline’s Medical Device Summit is ... and 8th June 2018 in San Francisco, CA. The Summit brings together current and ... distinguished CEOs, board directors and government officials from around the world to address key ...
(Date:10/11/2017)... ... October 11, 2017 , ... A new study published in ... and fresh in vitro fertilization (IVF) transfer cycles. The multi-center matched ... , After comparing the results from the fresh and frozen transfer cohorts, the ...
(Date:10/10/2017)... ... ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. ... event entitled “Stem Cells and Their Regenerative Powers,” was held on August 31st, ... was joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic Surgery, ...
(Date:10/9/2017)... , Oct. 9, 2017  BioTech Holdings announced ... by which its ProCell stem cell therapy prevents ... ischemia.  The Company, demonstrated that treatment with ProCell ... limbs saved as compared to standard bone marrow ... HGF resulted in reduction of therapeutic effect.  ...
Breaking Biology Technology:
(Date:4/24/2017)... -- Janice Kephart , former 9/11 Commission ... LLP (IdSP) , today issues the following statement: ... 6, 2017 Executive Order: Protecting the Nation ... instilled with greater confidence, enabling the reactivation of ... are suspended by until at least July 2017). ...
(Date:4/18/2017)... , April 18, 2017  Socionext Inc., a global expert ... a media edge server, the M820, which features the company,s hybrid ... software provided by Tera Probe, Inc., will be showcased during the ... the NAB show at the Las Vegas ... ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
Breaking Biology News(10 mins):