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 Post subject: www.whitesoxteamproshop.com/
PostPosted: Sat Sep 08, 2018 1:53 pm 

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WASHINGTON Luis Aparicio Jersey , Sept. 14 (Xinhua) -- Scientists have created miniature robots out of DNA that can autonomously "walk" around a surface, pick up certain molecules and drop them off in designated locations, a new study published Thursday in the U.S. journal Science said.


"Just like electromechanical robots are sent off to faraway places, like Mars, we would like to send molecular robots to minuscule places where humans can't go, such as the bloodstream Jose Abreu Jersey ," said LuLu Qian, assistant professor of bioengineering of the California Institute of Technology.


Such technology could one day be used for a wide range of applications, including synthesizing therapeutic chemicals in an artificial molecular factory, delivering drugs in bloodstreams or cells, or sorting molecular components in trash for recycling, Qian said.


To create a DNA robot Joe Crede Jersey , Qian's team constructed three basic building blocks, including a "leg" with two "feet" for walking, an "arm" and "hand" for picking up cargo, and a segment that can recognize a specific drop-off point and signal to the hand to release its cargo.


Each of these components is made of just a few nucleotides within a single strand of DNA.


In principle, these modular building blocks could be assembled in many different ways to complete different tasks.


For example, a DNA robot with several hands and arms Jeff Keppinger Jersey , could be used to carry multiple molecules simultaneously.


In the work described in the Science paper, the Qian group built a robot that could explore a molecular surface, pick up two different molecules and then distribute them to two distinct regions on the surface.


"The DNA robot moves around on a 58-nanometer-by-58-nanometer pegboard on which the pegs are made of single strands of DNA complementary to the robot's leg and foot," Qian's team said in a statement.


"The robot binds to a peg with its leg and one of its feet -- the other foot floats freely," the team said.


"When random molecular fluctuations cause this free foot to encounter a nearby peg, it pulls the robot to the new peg and its other foot is freed. This process continues with the robot moving in a random direction at each step."


Since one step for the little guy takes five minutes James Shields Jersey , and allows it to move six nanometers, it may take a day for the robot to explore the entire board, the team said.


"Along the way, as the robot encounters cargo molecules tethered to pegs, it grabs them with its 'hand' components and carries them around until it detects the signal of the drop-off point," it said.


"The process is slow Harold Baines Jersey , but it allows for a very simple robot design that utilizes very little chemical energy."


In a summary on the robot, the Science magazine called Qian's work "one small step for a DNA robot, one giant leap for mankind.


"The future is here," the summary wrote.


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 Post subject: Re: www.whitesoxteamproshop.com/
PostPosted: Wed Sep 12, 2018 6:56 pm 

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After detailed study of the disease by a number of scientists around the globe, it has been figured in most from the cases this is because the direct contact with free asbestos particles. This disease is usually known to be derived from an problem that comes from inhaling the actual loose asbestos fiber particles suspended in the air for any very long time.computer tech support


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