They beat like real heart cells, but the rat cardiomyocytes in a dish at Harvard University are different in one crucial way. Snaking through them are wires and transistors that spy on each cell’s electrical impulses. In future, the wires might control their behaviour too.
Versions of this souped-up, "cyborg" tissue have been created for neurons, muscle and blood vessels. They could be used to test drugsMovie Camera or as the basis for more biological versions of existing implants such as pacemakers. If signals can also be sent to the cells, cyborg tissue could be used in prosthetics or to create tiny robots.
"It allows one to effectively blur the boundary between electronic, inorganic systems and organic, biological ones," says Charles Lieber, who leads the team behind the cyborg tissue.
Artificial tissue can already be grown on three-dimensional scaffolds made of biological materials that are not electrically active. And electrical components have been added to cultured tissue before, but not integrated into its structure, so they were only able to glean information from the surface.
Bio-scaffolds go electric
Bioengineers at Harvard University have created the first examples of cyborg tissue: Neurons, heart cells, muscle, and blood vessels that are interwoven by nanowires and transistors. Source
Lieber’s team combined these strands of work to create electrically active scaffolds. They created 3D networks of conductive nanowires studded with silicon sensors. Crucially, the wires had to be flexible and extremely small, to avoid impeding the growth of tissue. The scaffold also contained traditional biological materials such as collagen.
The researchers were able to grow rat neurons, heart cells and muscle in these hybrid meshes. In the case of the heart cells, they started to contract just like normal cells, and the researchers used the network to read out the rate of the beats.
When they added a drug that stimulates heart cell contraction, they detected an increase in the rate, indicating the tissue was behaving like normal and that the network could sense such changes.
Lieber’s team also managed to grow an entire blood vessel about 1.5 centimetres long from human cells, with wires snaking through it. By recording electrical signals from inside and outside the vessel– something that was never possible before– the team was able to detect electrical patterns that they say could give clues to inflammation, whether tissue has undergone changes that make it prone to tumour formation or suggest impending heart disease.
VOTER FRAUD: Was the Scottish Independence Referendum Rigged to Fail? 2014 09 20
Was voter fraud committed during the Scottish Independence referendum?
It has been confirmed that the names of 10 people were already crossed off a voter list prior them voting inside a polling station.
According to reports, the Glasgow City Council confirmed that there were ten cases of suspected electoral fraud occurring at polling stations following the Scottish referendum vote on the 18th. ...
Scandinavians Split Over Syrian Influx 2014 09 20
This exemplifies the insanity of Scandinavia.
The narrow victory of the left-leaning Social Democratic Party in Sweden’s elections last Sunday marked a broad shift in its politics. But a new coalition government is unlikely to reconsider one of the country’s most challenging policies: its response to the Syrian civil war. Sweden has taken an open-door approach to people fleeing the conflict, ...
The Israel lobby in United Kingdom - Who Runs Britain? 2014 09 20 Who runs British politics? Who in Britain supports all the wars the UK has been involved in?
The Israel Lobby in the UK - Full Documentary By Peter Oborne from Dispatchees
Links from Youtube:
Zionist attack on western civilization
Reed Douglas - The Controversery of Zion
The cowardice at the heart of UK relationship with Israel
Close friends and allies: Prime Minister David Cameron ...
Another Palestinian Mass Grave Discovered, Evidence of Massacre 2014 09 20 Another mass grave discovered, evidence of 1948 Judaic holocaust by bullets, knives and bludgeons against Palestinians.
The Israeli military admits to have been surprised by the abilities of Palestinian resistance fighters during its recent war on the Gaza Strip.
A top Israeli military official says he’s impressed by the training of Palestinian resistance fighters from Hamas and the Islamic Jihad groups. He ...
Russian Media to be owned by Russians 2014 09 20 Comment: Russian media by and for Russians? Wow, revolutionary!
I guess they are stick of foreign oligarchs and zionist with dual citizenship.
Duma seeks limits on foreign ownership of Russian media companies
A group of opposition lawmakers have prepared a bill that orders Russian mass media companies to have at least 80 percent of their stock held by Russian investors.
The bill is backed ...