Navigation Links
A step toward better brain implants using conducting polymer nanotubes
Date:9/29/2009

ANN ARBOR, Mich.---Brain implants that can more clearly record signals from surrounding neurons in rats have been created at the University of Michigan. The findings could eventually lead to more effective treatment of neurological disorders such as Parkinson's disease and paralysis.

Neural electrodes must work for time periods ranging from hours to years. When the electrodes are implanted, the brain first reacts to the acute injury with an inflammatory response. Then the brain settles into a wound-healing, or chronic, response.

It's during this secondary response that brain tissue starts to encapsulate the electrode, cutting it off from communication with surrounding neurons.

The new brain implants developed at U-M are coated with nanotubes made of poly(3,4-ethylenedioxythiophene) (PEDOT), a biocompatible and electrically conductive polymer that has been shown to record neural signals better than conventional metal electrodes.

U-M researchers found that PEDOT nanotubes enhanced high-quality unit activity (signal-to-noise ratio >4) about 30 percent more than the uncoated sites. They also found that based on in vivo impedance data, PEDOT nanotubes might be used as a novel method for biosensing to indicate the transition between acute and chronic responses in brain tissue.

The results are featured in the cover article of the Oct. 5 issue of the journal Advanced Materials. The paper is titled, "Interfacing Conducting Polymer Nanotubes with the Central Nervous System: Chronic Neural Recording using Poly(3-4-ethylenedioxythiophene) Nanotubes."

"Microelectrodes implanted in the brain are increasingly being used to treat neurological disorders," said Mohammad Reza Abidian, a post-doctoral researcher working with Professor Daryl Kipke in the Neural Engineering Laboratory at the U-M Department of Biomedical Engineering.

"Moreover, these electrodes enable neuroprosthetic devices, which hold the
'/>"/>

Contact: Byron Roberts
byronr@umich.edu
734-647-7085
University of Michigan
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Toward a nanomedicine for brain cancer
2. Rats move toward the food but do not eat
3. Scientists take early steps toward mapping epigenetic variability
4. Toward an explanation for Crohns disease?
5. Gene expression findings a step toward better classification and treatment of juvenile arthritis
6. Toward cheap underwater sensor nets
7. Activated stem cells in damaged lungs could be first step toward cancer
8. Progress toward artificial tissue?
9. Toward a systems biology map of iron metabolism
10. Towards a natural pacemaker
11. Optimum running speed is stride toward understanding human body form
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
A step toward better brain implants using conducting polymer nanotubes
(Date:7/14/2014)... inevitable consequence of aging? , Although it is widely ... the risk of developing several common cancers decreases with ... apparent decrease with age in the risk of developing ... this puzzle was presented in a recent paper published ... James P. Brody of the Department of Biomedical Engineering ...
(Date:7/14/2014)... developed a technology that could overcome a major ... a fuel that could replace expensive and environmentally ... a novel catalyst that performs almost as well ... use electric currents to split water molecules into ... far more efficient than less-expensive catalysts investigated to-date. ...
(Date:7/13/2014)... French . , ... led by the Research Institute of the McGill University ... oral medication is showing significant progress in restoring vision ... this inherited retinal disease that causes visual impairment ranging ... The study is published today in the scientific journal ...
Breaking Biology News(10 mins):Rutgers chemists develop technology to produce clean-burning hydrogen fuel 2MUHC researcher unveils novel treatment for a form of childhood blindness 2
... early stages, prostate cancer requires androgens (hormones that promote ... growth, and current first-line therapies target the receptor for ... However, advanced prostate cancers are often androgen-independent, ... sure how this shift occurs as prostate cancer advances. ...
... JERUSALEM , July 6, 2010 IDenta Corp.,(PINKSHEETS: IDTA) CEO Yaacov Shoham ... The IDenta,s BTK- Bullet Hole ... , , ... , http://www.lasvegassun.com/news/2008/jul/08/gee-whiz-packed-metro-csi-tru , ...
... just yet, but if you,re taking antioxidants because you hope ... the June 2010 issue of the journal GENETICS ... stress to our tissues shortens lifespan. That,s because researchers from ... genes of worms (genes believed to have counterparts in humans) ...
Cached Biology News:UNC team finds new target for treatment of advanced prostate cancer 2International Drug & Explosives Detection Company IDenta Corp Reports on BTK- Bullet Hole Testing Kit 2International Drug & Explosives Detection Company IDenta Corp Reports on BTK- Bullet Hole Testing Kit 3Want to slow aging? New research suggests it takes more than antioxidants 2
(Date:7/10/2014)... Unraveling life’s mysteries can intrigue, amaze, ... Family purchased a DNA test to unravel ... with a lifetime of memories, sharing, and closeness. In ... DNA genuinely brought the family closer together. , ... genetic history and prior to taking the genetic ...
(Date:7/10/2014)... Angeles, CA (PRWEB) July 10, 2014 ... and Bioanalytical techniques during 18-20 August, 2014 at Double ... critically review the recent developments in Analytical & Bioanalytical ... the globe. , Speaking on this occasion, Dr. Srinubabu ... Analytica Acta conference is a remarkable one in ...
(Date:7/10/2014)... Senior supply chain management executives from over ... challenges of “Reducing Cost, Lead Time, & Defects in ... Describing the partnership of the Bio Supply Management Alliance ... ( SCMI) of the University of San Diego ... Kroc Institute of Peace and Justice in San Diego, ...
(Date:7/10/2014)... On July 9 Prime Minister ... Russia,s first national "Industry" award ... is developing a unique project called MabNext . ... number of innovative drugs based on monoclonal antibodies for ... place at the International Exhibition "Innoprom 2014" in Ekaterinburg. ...
Breaking Biology Technology:Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 2Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 3Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 4Ancestry DNA Test Reveals a Controversial and Undiscovered Family History 5A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4Dmitry Medvedev Presented BIOCAD the First National "Industry" Award 2
... software developer Cedara Software and the ... to offer Cedara B-CAD to its customers as part ... Workstation. , ,Cedara B-CAD is a Computer Aided Detection ... lesions using ultrasound images, providing tools for automatic image ...
... individuals are invited to enter the 35th ... benefits coming from research and engineering of new ... Products Awards are given in four major categories: ... (500-999 employees); medium companies (50-499 employees); and small ...
... StrandVision , latest business venture of Mike Strand in ... last business-plan competition, has landed $250,000 from the ... Online Kiosks, has a plan to put video screens ... After reaching the statewide business-plan competition finals, it won ...
Cached Biology Technology: