The Purdue University research team that recently created a tiny motor out of synthetic biological molecules has found further evidence that RNA molecules can perform physical work, a discovery that could advance nanotechnology and possibly solve fundamental mysteries about life itself.
One promising application of RNA-ATP binding is this microscopic motor, assembled by Peixuan Guos team at Purdue University. The motor, only a few nanometers wide, is formed by six strands of RNA surrounding an "axle" made of DNA. When fed a supply of ATP as fuel, the RNA molecules kick against the DNA in succession, much like the pistons in a conventional motor. (Graphic/Guo Laboratory)
Purdues Peixuan Guo has discovered how viral RNA molecules bind an energy-bearing organic molecule known as ATP. While linking these two substances might seem to create no more than a longer string of letters, the upshot is that now one of lifes most mysterious and ancient storehouses of information can be moved by one of its most important fuels. The discovery could shed light on the fundamental role RNA plays in the creation of living things.
"RNA could be even more of a key player than we realize," said Guo, professor of veterinary pathobiology in Purdues School of Veterinary Medicine. "The fact that it can be made to bind ATP in the phi29 virus could imply that these two molecules were among the first to partner in Earths dance of life."
Chad Boutin | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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