Corporate Banner
Satellite Banner
Automation & Microfluidics
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Research Shows Promise of New Device to Detect Disease with Drop of Blood

Published: Wednesday, June 26, 2013
Last Updated: Wednesday, June 26, 2013
Bookmark and Share
An NJIT professor is overseeing the manufacture of a prototype lab-on-a-chip that would someday enable a physician to detect disease or virus from just one drop of liquid.

“Scalable nano-bioprobes with sub-cellular resolution for cell detection,” Biosensors and Bioelectronics, (Elsevier, Vol. 45), which will publish on July 15, 2013 but is available now online, describes how NJIT research professors Reginald Farrow and Alokik Kanwal, his former postdoctoral fellow, and their team have created a carbon nanotube-based device to noninvasively and quickly detect mobile single cells with the potential to maintain a high degree of spatial resolution.

“Using sensors, we created a device that will allow medical personnel to put a tiny drop of liquid on the active area of the device and measure the cells’ electrical properties,” said Farrow, the recipient of NJIT’s highest research honor, the NJIT Board of Overseers Excellence in Research Prize and Medal.  “Although we are not the only people by any means doing this kind of work, what we think is unique is how we measure the electrical properties or patterns of cells and how those properties differ between cell types.”

In the article, the NJIT researchers evaluated three different types of cells using three different electrical probes.  “It was an exploratory study and we don’t want to say that we have a signature,” Farrow added.  “What we do say here is that these cells differ based on electrical properties.  Establishing a signature, however, will take time, although we know that the distribution of electrical charges in a healthy cell changes markedly when it becomes sick.”

This research was originally funded by the military as a means to identify biological warfare agents.  However, Farrow believes that usage can go much further and potentially detect viruses, bacteria, even cancer.  The research may also someday even assess the health of good cells, such as brain neurons.  Since 2010, three U.S. patents, “Method of forming nanotube vertical field effect transistor,” #7,736,979 (2010); “Nanotube device and method of fabrication” #7,964,143 (2011); “Nanotube device and method of fabrication” #8,257,566 (2012) were awarded for this device.  In addition, more patents have been filed.

The device (shown in photo) utilizes standard complementary metal oxide semiconductor (CMOS) technologies for fabrication, allowing it to be easily scalable (down to a few nanometers).  Nanotubes are deposited using electrophoresis after fabrication in order to maintain CMOS compatibility.

The devices are spaced by six microns which is the same size or smaller than a single cell.  To demonstrate its capability to detect cells, the researchers performed impedance spectroscopy on mobile human embryonic kidney (HEK) cells, neurons from mice, and yeast cells.  Measurements were performed with and without cells and with and without nanotubes. Nanotubes were found to be crucial to successfully detect the presence of cells.

Carbon nanotubes are very strong, electrically conductive structures a single nanometer in diameter.  That’s one-billionth of a meter, or approximately ten hydrogen atoms in a row. Farrow’s breakthrough is a controlled method for firmly bonding one of these submicroscopic, crystalline electrical wires to a specific location on a substrate.  His method also introduces the option of simultaneously bonding an array of millions of nanotubes and efficiently manufacturing many devices at the same time.

Being able to position single carbon nanotubes that have specific properties opens the door to further significant advances.  Other possibilities include an artificial pancreas, three-dimensional electronic circuits and nanoscale fuel cells with unparalleled energy density.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 4,000+ scientific posters on ePosters
  • More than 5,300+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Automated Low Volume Dispensing Trends
Gain a better understanding of the current and future market requirements for fully automated LVD systems.
Blood-brain Barrier on a Chip
Researchers from Vanderbilt University have developed a microfluidic device to study the blood-brain barrier.
'Lab on the Skin' for Sweat Analysis
Northwestern University researchers develop a low-cost wearable electronic device that collects and analyzes sweat for health monitoring.
Peer Review is in Crisis, But Should be Fixed, Not Abolished
After the time to get the science done, peer review has become the slowest step in the process of sharing studies, and some scientists have had enough.
Making Every Cell Matter
New method for encapsulating single cells within microgels could boost efficacy of cell-based therapies and tissue engineering.
Modelling Cigarette Effects with Airway-on-a-Chip
An instrument that smokes cigarettes like a human, and delivers whole smoke to the air space of microfluidic human airway chips, enables new insights into how non-smokers and COPD patients respond to smoke.
Robotic Cleaning Technique Could Automate Neuroscience Research
New robotic cleaning technique allows pipettes used in patch-clamping to be re-used up to 11 or more times.
Lab-on-a-Chip to Help Detect Cancer
In this podcast, we speak to Gustavo Stolovitsky to learn about his career and the work he is doing at IBM Research.
First Entirely 3D-printed Organ-on-a-Chip with Integrated Sensors
New approach to manufacturing may allow researchers to rapidly design organs-on-chips that match the properties of a specific disease or individual patient's cells.
3D-Printing in Science: Conference Co-Staged with LABVOLUTION
LABVOLUTION 2017 will have an added highlight of a simultaneous conference, "3D-Printing in Science".
Scroll Up
Scroll Down
Skyscraper Banner

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
4,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,300+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!