Researchers from Columbia University, Arizona State University, University of Michigan and California Institute of Technology (Caltech) have created and programmed a robot the size of a single molecule that can move independently in the path of Nano-scale. These developments, described in the journal Nature, marks the significant progress in the field of molecular computing and robotics newborn, and one day could lead to robots that can repair or molecular assembling nanotechnology product of individual cells.
The project was led by Milan N. Stojanovic, faculty members in the division of Experimental Therapeutics at Columbia University, who partnered with Erik Winfree, a professor of computer science at Caltech, Hao Yan, to professor of chemistry and biochemistry at Arizona State University and an expert in DNA nanotechnology, and Nils G. Walter, professor of chemistry and director of Single Molecule Analysis in Real-Time (SMART) Center at the University of Michigan in Ann Arbor. Their work is supported in part by the National Science Foundation.
The word ‘robot’ makes most people think about compact machine that uses a computer circuit to perform the work assigned, such as dust or welding together the car rug. In recent years, scientists have been working to create robots that can perform useful tasks that can be trusted, but at the molecular level. This is, of course, is not a simple business, and involves the reprogramming of DNA molecules to perform a certain way.
“Can you instruct a Biomolecule to move and function in certain ways – researchers at the interface of computer science, chemistry, biology and engineering are trying to do that,” said Mitra Basu, NSF program director in charge of corporate support for this research.
Recent work has resulted in molecular robotics pedestrians called DNA, or DNA strings reprogrammed with ‘legs’ which allows them to run briefly. Now this team of researchers have demonstrated molecular spider robots can move independently through the actual landscape, especially those made of two-dimensional. Spider robots act in ways basic, indicating that they are able to start moving, walking for a while, turning, and stopping.
Apart from very small – about 4 nanometers in diameter – because pedestrians were moving slowly, which includes 100 nanometers when the step from 30 minutes to an hour by taking approximately 100 this is a significant increase over the previous DNA walker that can only three steps.
While the field of molecular robotics still appear, it is possible that small creations someday may also be applied to medically important. “This work leads to an effective one day be able to control chronic diseases such as diabetes or cancer,” said Basu. According Stojanovich, practical application secretly for years, but he, and his colleagues to continue their work with the hope to the foundations of this field is still young.
Stojanovich believe that their future job that will require extensive collaboration, with each of them brings a special expertise to the table, as happened in the research published this week. “If you take anyone of us to discipline us out of this expertise,” Stojanovic said in an interview, “this paper will collapse and never be like now.”
