Posts Tagged ‘nanotechnology’

Singularity Now!

Thursday, May 20th, 2010

When it rains, it pours. And right now it’s pouring Singularity like sweet, hot maple syrup all over the fluffy stack of flapjacks that is humanity.

An editor from the transhumanist magazine H+ sums it all up very nicely with a compilation of recent developments on everything from nanofactories to 3D human tissue printers to plasma fusion. The asymptote is in view.

Meanwhile, American researchers have successful produced an amazing breakthrough in the creation of artificial life. Pre-programmed DNA “software” implanted in a surrogate cell. The cell then reads the new, synthetic DNA, produces the proteins encoded therein and converts the surrogate into the cell species specified by the genetic code. The newly minted cell species then copies itself billions of times – all containing the same synthetically programmed DNA. New life.

“I think they’re going to potentially create a new industrial revolution,” Dr Venter said.

“If we can really get cells to do the production that we want, they could help wean us off oil and reverse some of the damage to the environment by capturing carbon dioxide.”

Simultaneously, we don’t know the risks of launching vast synthetic organisms into the wild. It’s kind of an organic grey goo quandry.

However, we will have the machines on our side! Newly developed transistors allow biological proteins to communicate with to nano-electronic circuits.

First, researchers built the backbone of the transistor out of a carbon nanotube between two electrodes. Next, they insulated the electrodes and covered the nanotube with a mixture of fatty molecules called lipids and proteins. The covering formed a lipid “bilayer” — a double lipid membrane — much like those that make up the outer membranes of biological cells.

The researchers then poured a solution of sodium ions, potassium ions and adenosine triphosphate, or ATP, over the transistor while running a voltage through it. In cells, ATP is the primary source of energy. It fulfilled the same role in the transistor, powering the proteins embedded in the lipid bilayer.

These proteins began working, transferring sodium and potassium ions across the bilayer. The charges from the ions created an electrical field around the transistor, which then changed the ability of the transistor to conduct electricity by as much as 35 percent. The higher the concentration of ATP, the more the conductivity changed.

Getting a biological molecule to control the electric current in a transistor is a first step toward computers that would interface directly with the brain.

“We are about to break the surly bonds of [reality] and punch the face of God!” – H. Simpson

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Light and Sound Vibrations Encapsulated in Nanocrystal

Tuesday, October 27th, 2009

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The future-present is awesome! Scientists at Caltech have successfully encoded both light and sound vibrations in a nanocrystal.

Not only is this amazing for the information storage and transmission functionality but it also makes it possible to produce high-frequency sound waves using only light. The sound waves generated are analagous to the light waves of a laser – LASER SOUND.

“…the interactions between sound and light in this device—dubbed an optomechanical crystal—can result in mechanical vibrations with frequencies as high as tens of gigahertz, or 10 billion cycles per second. Being able to achieve such frequencies gives these devices the ability to send large amounts of information, and opens up a wide array of potential applications—everything from lightwave communication systems to biosensors capable of detecting (or weighing) a single macromolecule. It could also be used as a research tool by scientists studying nanomechanics. These structures would give a mass sensitivity that would rival conventional nanoelectromechanical systems because light in these structures is more sensitive to motion than a conventional electrical system is.”‘

“We now have the ability to manipulate sound and light in the same nanoplatform, and are able to interconvert energy between the two systems,” says Painter. “And we can engineer these in nearly limitless ways.”

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Single Molecule Photographed

Monday, August 31st, 2009

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For the first time a single molecule has been nano-photographed. The better we are at seeing tiny, tiny things the quicker we can make robots out of them.

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