Social Media Sidebar


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

Just because something doesn’t do what you planned it to do doesn’t mean it’s useless.


Thomas Edison

Implanted carbon nanotubes could help diagnose medical conditions

Posted in Science on 25th Aug, 2015 11:03 PM by AlexMuller

Scientists are on the lookout for more ways to identify particular molecules in the body, because their levels can be indicative of dozens of different health conditions. Now a team of researchers has developed implantable carbon nanotubes that light up in the presences of specific molecules.


That could lead to faster, or even automated, diagnoses of diseases that currently take several days. Carbon nanotubes are minuscule cylinders made of graphene and coated with another type of polymer, they are flexible and easy to modify for different purposes, which is why researchers have found uses for them in bringing molecules in and out of cells or checking to see if meat has gone bad.


To use the nanotubes to diagnose diseases, the researchers designed special polymers that respond in the presence of a biological molecule they’re interested in. A special sensor in the nanotube transmits the signal back to a computer that can process it.


In their presentation the researchers outlined experiments conducted in mice with carbon nanotubes designed to detect insulin, key for diagnosing diabetes; fibrinogen, a protein necessary for blood clot formation and an indicator of liver disease or other inflammatory diseases; and nitric oxide, a molecule the body produces if cancer is present.
The researchers engineered the polymers to sense a particular molecule. They tested the carbon nanotubes in blood samples outside the mice, then they implanted the devices inside the mice. The nanotubes worked, they transmitted a continuous signal and, when inside the body, didn’t break down or cause a reaction for 400 days. The nitric oxide sensors in particular worked well, as they were injected into the bloodstream and were even able to pass through the tiny capillaries in the lungs.
Given the cost of carbon nanotubes, it probably makes more sense that traditional blood tests will be used for most types of diagnosis, at least in the foreseeable future. But if carbon nanotubes perform similarly well in humans, they could be useful for continuous monitoring of patients in precarious conditions.

Tags: nanotechnologynanotubediagnosishealthmedicinedisease

Read original article » Back to category


Author: Guest
Posted: 2015-08-26
It is good to explore alternatives to traditional blood test and use new technologies that may not be affordable at present but could become standard in the future, anyway early days for these sensors Reply


Recent headlines

  • Posted in Science on 2018-04-20 16:52:03
    Europe's Mars rover takes more
    Posted in Science on 2018-04-20 16:46:43
    Scientists discover protein behind motor neurone more
    Posted in Hardware on 2018-04-20 16:39:19
    SpaceX finally Falcon flings NASA's TESS into more
    Posted in Science on 2018-04-18 23:02:22
    Clean Energy is Happening, With or Without the more
    Posted in Science on 2018-04-18 22:56:16
    One machine to rule them all: A 'Master Algorithm' more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs, more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target more

Recent Blog Posts

  • Posted by AlexMuller
    In five years quantum computing will be more
    Posted by AlexMuller
    Google partners with Johnson and Johnson to make lower more
    Posted by AlexMuller
    Electron holography microscope with spatial resolution down more
    Posted by AlexMuller
    Lower cost advanced Nuclear power could dominate future US more
    Posted by AlexMuller
    Why Hasn’t AI Mastered Language Translation? more

Login to your Account

Login to your PlanetTech Account here

Remember me

Create a New Account

You just need username and password

The following errors occured:
Verify password:
Remember me