Navigation Links
Neural networking nanotubes

New implantable biomedical devices that can act as artificial nerve cells, control severe pain, or allow otherwise paralyzed muscles to be moved might one day be possible thanks to developments in materials science. Writing today in Advanced Materials, Nicholas Kotov of the University of Michigan, USA, and colleagues describe how they have used hollow, submicroscopic strands of carbon, carbon nanotubes, to connect an integrated circuit to nerve cells. The new technology offers the possibility of building an interface between biology and electronics.

Kotov and colleagues at Oklahoma State University and the University of Texas Medical Branch have explored the properties of single-walled nanotubes (SWNTs) with a view to developing these materials as biologically compatible components of medical devices, sensors, and prosthetics. SWNTs are formed from carbon atoms by various techniques including deposition and resemble a rolled up sheet of chicken wire, but on a tiny scale. They are usually just a few nanometers across and up to several micrometers in length.

The researchers built up layers of their SWNTs to produce a film that is electrically conducting even at a thickness of just a few nanometers. They next grew neuron precursor cells on this film. These precursor cells successfully differentiated into highly branched neurons. A voltage could then be applied, lateral to the SWNT film layer, and a so-called whole cell patch clamp used to measure any electrical effect on the nerve cells. When a lateral voltage is applied, a relatively large current is carried along the surface but only a very small current, in the region of billionths of an amp, is passed across the film to the nerve cells. The net effect is a kind of reverse amplification of the applied voltage that stimulates the nerve cells without damaging them.

Kotov and his colleagues report that such devices might find use in pain management, for instance, where nerve cells involved in the pain response might be controlled by reducing the activity of those cells. An analogous device might be used conversely to stimulate failed motor neurons, nerve cells that control muscle contraction. The researchers also suggest that stimulation could be applied to heart muscle cells to stimulate the heart.

They caution that a great deal of work is yet to be carried out before such devices become available to the medical profession.
'"/>

Source:John Wiley & Sons, Inc.


Related biology news :

1. Neural stem cell gene plays crucial role in eye development
2. Neural stem cells lend the brain a surprising capacity for self-repair
3. Neural bottleneck found that thwarts multi-tasking
4. Motorola researchers develop selective sensors based on carbon nanotubes
5. Cells selectively absorb short nanotubes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... May 16, 2017  Veratad Technologies, LLC ( www.veratad.com ... age and identity verification solutions, announced today they will ... 2017, May 15 thru May 17, 2017, in ... International Trade Center. Identity impacts the ... in today,s quickly evolving digital world, defining identity is ...
(Date:4/18/2017)...  Socionext Inc., a global expert in SoC-based imaging and computing ... M820, which features the company,s hybrid codec technology. A demonstration utilizing ... Inc., will be showcased during the upcoming Medtec Japan at Tokyo ... Las Vegas Convention Center April 24-27. ... Click here for an image ...
(Date:4/11/2017)... DUBLIN , Apr. 11, 2017 Research ... Tracking Market 2017-2021" report to their offering. ... The global eye tracking market to grow at ... The report, Global Eye Tracking Market 2017-2021, has been prepared based ... report covers the market landscape and its growth prospects over the ...
Breaking Biology News(10 mins):
(Date:7/27/2017)... ... July 27, 2017 , ... Margot Connor, CEO ... on Baltimore Business Journal’s 2017 Tech 10 List of “outstanding professionals in the ... for contributions to the technology industry within their local community. Honorees are “CEOs ...
(Date:7/26/2017)... (PRWEB) , ... July 26, 2017 , ... ... (AI) and leading supplier of Semantic Graph Database technology for Knowledge Graphs, today ... and discovering connections within data. Gruff provides novice users and graph experts the ...
(Date:7/26/2017)... , ... July 25, 2017 , ... ... proud to announce that its regenerative stem cell therapy has been used on ... a successful treatment for horses with potentially fatal injuries to tendons and ligaments. ...
(Date:7/26/2017)... Minneapolis, MN (PRWEB) , ... July 26, 2017 ... ... All of Us Research Program at the National Institutes of Health (NIH), will ... Medicine Conference. This annual conference provides a platform for a multi-stakeholder discussion on ...
Breaking Biology Technology: