Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

New fibers can deliver optogenetic signals and drugs directly into the brain while allowing simultaneous electrical readout

RATE THIS! +27
Posted in Science on 31st Jan, 2015 10:11 PM by AlexMuller

Scientists have developed a new method of coping with the complexity of studying the brain. They created probes containing biocompatible multipurpose fibers about 85 micrometers in width.

 

The new fibers can deliver optogenetic signals and drugs directly into the brain, while allowing simultaneous electrical readout to continuously monitor the effects of the various inputs. The fibers are made of polymers that closely resemble the characteristics of neural tissues, they are “soft and flexible and look more like natural nerves,” according to MIT assistant professor of materials science and engineering Polina Anikeeva, allowing them to stay in the body much longer without harming the delicate tissues around them.

 
Devices currently used for neural recording and stimulation, she says, are made of metals, semiconductors, and glass, which can damage nearby tissues during ordinary movement. “It’s a big problem in neural prosthetics,” she says. “They are so stiff, so sharp, when you take a step and the brain moves with respect to the device, you end up scrambling the tissue”, forming scars and leading to neuronal death surrounding the electrode.
 
The key to the new technology for neural probes is making a larger-scale version, called a preform, of the desired arrangement of channels within the fiber, optical waveguides to carry light, hollow tubes to carry drugs, and conductive electrodes to carry electrical signals. These polymer templates are then heated until they become soft, and drawn into a thin fiber, while retaining the exact arrangement of features within them.

Tags: brainscienceneurosciencedrugneurons

Read original article » Back to category

Comments

Author: Guest
Posted: 2015-02-01
+1
So many new technologies relevant for neuroscience! Hopefully, they will not only support new observations but also assist with treatments- here in particular to deliver drugs
1 Replies
Author: Guest
Posted: 2015-02-01
+0
Hopefully this can address the problem of blood - brain barrier in drug delivery and drug action for brain pathologies Reply
Reply


 

Recent headlines

  • Posted in Business on 2017-04-29 13:25:52
    Google Is Becoming 'A.I. First'..read more
    Posted in Science on 2017-04-29 13:18:48
    SpaceX looks to break into national security launch.....read more
    Posted in Medicine on 2017-04-29 13:07:03
    China Is Racing Ahead in the Quest to Cure Cancer With.....read more
    Posted in Science on 2017-04-28 18:56:10
    Martian Soil Could Be Used to Build a Colony..read more
    Posted in Business on 2017-04-28 18:45:58
    President Trump’s Tax Plan Would Give Alphabet $47B..read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me