Post by whiterose on Aug 20, 2007 22:31:23 GMT -5
This will keep you entertained for a bit---
www.livescience.com/strangenews/060315_dna_origami.html
"It self-assembles completely," Rothemund told LiveScience. "It's all designed in the computer and then it's hands off."
Each DNA staple has two arms and is shaped like a "V." Each arm is made up of a unique base sequence that binds to a complimentary sequence on the long DNA strand. Each staple binds to two different sections of the long DNA strand, bringing and keeping them together.
"You send an email to a company [that synthesizes DNA] and they send you back a Fed-Ex package with the staples in it."
In the last year, Rothemund has created half a dozen shapes and patterns. Aside from stars and smiley faces, he also spelled out "DNA" and drew a rough picture of DNA's double helix shape, which resembles two intertwined ribbons. And he created a miniature map of the Western Hemisphere in which one nanometer represents about 125 miles.
www.livescience.com/technology/050928_dna_robots.html
(Dated 2005) Inspired by biological systems, scientists have developed miniature robots that can self-assemble using parts that float randomly in their environments. The robots also know when something is amiss and can correct their own mistakes.
www.livescience.com/health/060208_dna_nanotubes.html
Dated 2006. We are only a year or so away from this type of application."
In the new device, DNA wraps around the nanotube with a certain shape defined by the negative charges along its backbone, researchers explain. When exposed to ions of calcium, mercury, sodium or other targeted substances, the negative charges are neutralized and the DNA changes shape. This causes it to glow, or fluoresce, at different wavelengths of infrared light.
www.livescience.com/technology/051027_cellborg_sensor.html
The gold nanoparticles attached to long hair-like proteins on the surface of the bacteria, transforming them into gold-plated bridges that completed an electronic circuit.
www.livescience.com/animals/050310_talking_bacteria.html
Bacteria are more gregarious than previously thought. Not only do they routinely engage in small talk among themselves, but research is showing that many are also multilingual and can communicate with members of other species.
www.livescience.com/technology/050201_skin_printing.html
By manufacturing human skin cells using a printer similar to an inkjet, scientists have taken a significant first step toward generating new skin. The process, which could revolutionize the treatment of major skin wounds, could be ready for clinical trials in five years.
www.livescience.com/strangenews/060315_dna_origami.html
"It self-assembles completely," Rothemund told LiveScience. "It's all designed in the computer and then it's hands off."
Each DNA staple has two arms and is shaped like a "V." Each arm is made up of a unique base sequence that binds to a complimentary sequence on the long DNA strand. Each staple binds to two different sections of the long DNA strand, bringing and keeping them together.
"You send an email to a company [that synthesizes DNA] and they send you back a Fed-Ex package with the staples in it."
In the last year, Rothemund has created half a dozen shapes and patterns. Aside from stars and smiley faces, he also spelled out "DNA" and drew a rough picture of DNA's double helix shape, which resembles two intertwined ribbons. And he created a miniature map of the Western Hemisphere in which one nanometer represents about 125 miles.
www.livescience.com/technology/050928_dna_robots.html
(Dated 2005) Inspired by biological systems, scientists have developed miniature robots that can self-assemble using parts that float randomly in their environments. The robots also know when something is amiss and can correct their own mistakes.
www.livescience.com/health/060208_dna_nanotubes.html
Dated 2006. We are only a year or so away from this type of application."
In the new device, DNA wraps around the nanotube with a certain shape defined by the negative charges along its backbone, researchers explain. When exposed to ions of calcium, mercury, sodium or other targeted substances, the negative charges are neutralized and the DNA changes shape. This causes it to glow, or fluoresce, at different wavelengths of infrared light.
www.livescience.com/technology/051027_cellborg_sensor.html
The gold nanoparticles attached to long hair-like proteins on the surface of the bacteria, transforming them into gold-plated bridges that completed an electronic circuit.
www.livescience.com/animals/050310_talking_bacteria.html
Bacteria are more gregarious than previously thought. Not only do they routinely engage in small talk among themselves, but research is showing that many are also multilingual and can communicate with members of other species.
www.livescience.com/technology/050201_skin_printing.html
By manufacturing human skin cells using a printer similar to an inkjet, scientists have taken a significant first step toward generating new skin. The process, which could revolutionize the treatment of major skin wounds, could be ready for clinical trials in five years.