Navigation Links
A better brain implant: Slim electrode cozies up to single neurons
Date:11/11/2012

ANN ARBORA thin, flexible electrode developed at the University of Michigan is 10 times smaller than the nearest competition and could make long-term measurements of neural activity practical at last.

This kind of technology could eventually be used to send signals to prosthetic limbs, overcoming inflammation larger electrodes cause that damages both the brain and the electrodes.

The main problem that neurons have with electrodes is that they make terrible neighbors. In addition to being enormous compared to the neurons, they are stiff and tend to rub nearby cells the wrong way. The resident immune cells spot the foreigner and attack, inflaming the brain tissue and blocking communication between the electrode and the cells.

The new electrode developed by the teams of Daryl Kipke, a professor of biomedical engineering, Joerg Lahann, a professor of chemical engineering, and Nicholas Kotov, the Joseph B. and Florence V. Cejka Professor of Engineering, is unobtrusive and even friendly in comparison. It is a thread of highly conductive carbon fiber, coated in plastic to block out signals from other neurons. The conductive gel pad at the end cozies up to soft cell membranes, and that close connection means the signals from brain cells come in much clearer.

"It's a huge step forward," Kotov said. "This electrode is about seven microns in diameter, or 0.007 millimeters, and its closest competitor is about 25 to 100 microns."

The gel even speaks the cell's language, he said. Electrical impulses travel through the brain by movements of ions, or atoms with electric charges, and the signals move through the gel in the same way. On the other side, the carbon fiber responds to the ions by moving electrons, effectively translating the brain's signal into the language of electronic devices.

To demonstrate how well the electrode listens in on real neurons, Kipke's team implanted it into the brains of rats. The electrode's n
'/>"/>

Contact: Nicole Casal Moore
ncmoore@umich.edu
734-647-7087
University of Michigan
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Graphene foam detects explosives, emissions better than todays gas sensors
2. PAREXEL Introduces Executive Briefing Series on Proven Practices to Assist Emerging and Mid-size Biopharma in Achieving Better Outcomes
3. A step toward better electronics
4. Better organic electronics
5. Using nanoclays to build better asphalt pavement
6. New research could mean faster computers and better mobile phones
7. Penn researchers study of phase change materials could lead to better computer memory
8. Breathe Better With Clarity Allergy Center
9. UMass Amherst, Harvard experts say better systems needed for medical device cybersecurity
10. Sitting still or going hunting: Which works better?
11. Flexible Sensors Offer Unprecedented View of Brain Activity During Epileptic Seizures
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains how latent ... viruses is the Epstein Barr Virus (EBV), and one of ... a chronic inflammatory disease that destroys the body’s joints. As ... have high concentrations of EBV DNA in their bodies (1). ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 2013 was ... Scottsdale’s Brain State Technologies®. They saw continued independent research ... Center who were awarded a $1 million grant from ... in “Brain and Behavior” a peer reviewed journal, Amy ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider of ... of tinnitus. Patients listen to sound therapy that is ... of weeks to months, their tinnitus volume decreases. , AudioNotch ... Music and Notched White Noise. Now, AudioNotch is pleased to ...
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: 6 ... Almshouse Road, Warrington, Pa. , Details: The Hepatitis ... finding a cure for hepatitis B and improving the quality ... Crystal Ball on Friday, April 11 at Warrington Country Club ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... , LUMBY, BC, July 2 /PRNewswire-FirstCall/ - avVaa ... a global biotechnology company, manufacturer and distributor of ... products, announced the engagement of Koeppel Direct to ... Campbell-Farley, President/COO of avVaa World Health Care is ...
... July 2 /PRNewswire-FirstCall/ - Oncolytics Biotech Inc. (TSX: ONC, ... enrolment has been completed in the Phase II component ... with paclitaxel/carboplatin for patients with advanced cancers. The principal ... The Institute of Cancer Research, London, England, and Dr. ...
... analysis technique that identifies and removes systematic bias, ... lead to more precise and reliable measurement of ... applications. Known as sequential profile adjustment by ... amount of experimental data required to make conclusions, ...
Cached Biology Technology:avVaa World Health Care Products, Inc. Announces Engagement of Koeppel Direct for their DRTV-Direct Response Television Media Buying Campaign 2Oncolytics Biotech(R) Inc. Completes Patient Enrolment in U.K. Combination REOLYSIN(R) and Paclitaxel/Carboplatin Head and Neck Cancer Trial 2New statistical technique improves precision of nanotechnology data 2New statistical technique improves precision of nanotechnology data 3New statistical technique improves precision of nanotechnology data 4
(Date:4/17/2014)... is available in German . ... the protection money demanded of him, he can expect his ... however, as fear of the consequences is enough to make ... parasitic birds, which lay their eggs in other birds, nests. ... brood parasites take their revenge by destroying the entire nest. ...
(Date:4/17/2014)... the Amazon help create tinderbox conditions for wildfires ... forest loss during drought years, according to a ... in the Amazon could reach a "tipping point" ... to large-scale loss of trees, making recovery more ... Penn State. , "We documented one of the ...
(Date:4/17/2014)... are implicated in many serious conditions such as heart ... target for drug therapies. Unfortunately, there is still much ... research provides fresh and unexpected insight into the structure ... - β-subunit molecules - which are responsible for ,fine-tuning, ... in the most recent edition of the Journal ...
Breaking Biology News(10 mins):Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Drought and fire in the Amazon lead to sharp increases in forest tree mortality 2Drought and fire in the Amazon lead to sharp increases in forest tree mortality 3Structure of sodium channels different than previously believed 2
... CORVALLIS, Ore. - Penguins that died 44,000 years ago ... challenge the accuracy of traditional genetic aging measurements, and ... of many specimens by 200 to 600 percent. ... DNA testing to be 100,000 years old may actually ...
... The war between the sexes has been fought on ... the animal kingdom is replete with species involved in ... Eppley and colleagues at Portland State University published in ... Botany ( www.amjbot.org/cgi/content/full/96/11/1967 ) demonstrates that certain plants, ...
... in Spanish . , Figures are impressive and, ... century: according to data from the United Nations through the UN.GIFT ... 161 countries are reported to be affected by human trafficking by ... victims are between 18 and 24 years of age but an ...
Cached Biology News:Ancient penguin DNA raises doubts about accuracy of genetic dating techniques 2In the war between the sexes, the one with the closest fungal relationship wins 2Geneticists coordinate action to fight against traffic in human beings 2Geneticists coordinate action to fight against traffic in human beings 3