Scientists have developed a new technique to orient and position self-assembled DNA shapes and patterns — or “DNA origami” — on surfaces that are compatible with today’s semiconductor manufacturing equipment. These precisely positioned DNA nanostructures, each no more than one one-thousandth the width of a human hair, can serve as scaffolds or miniature circuit boards [...]
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Researchers have destroyed prostate cancer tumors in mice by injecting them with specially-coated, minuscule carbon tubes and then superheating the tubes with a brief zap of a laser.
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Humans might not be walking on Earth today if not for the ancient fusing of two microscopic, single-celled organisms called prokaryotes, new research has found. By comparing proteins present in more than 3000 different prokaryotes, a molecular biologist shows that two major classes of relatively simple microbes fused together more than 2.5 billion years ago. [...]
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Researchers have shown the first link between a newly discovered anti-aging gene and high blood pressure. The results offer new clues on how we age and how we might live longer.
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An investigation by the LIGO Scientific Collaboration and the Virgo Collaboration has significantly advanced our understanding the early evolution of the universe. Analysis of data taken from 2005 to 2007 has set the most stringent limits yet on the amount of gravitational waves that could have come from the Big Bang in the gravitational wave [...]
Researchers describe an experimental approach to wound healing that could take advantage of silver’s anti-bacterial properties, while sidestepping the damage silver can cause to cells needed for healing.
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For decades, astronomers have gone about their business of studying the cosmos with the assumption that stars of certain sizes form in certain quantities. Like grocery stores selling melons alone, and blueberries in bags of dozens or more, the universe was thought to create stars in specific bundles. In other words, the proportion of small [...]
Researchers have found that the activity of a protein in brain cells helps stimulate the spread of an aggressive brain cancer called glioblastoma multiforme (GBM). In a move toward therapy, the researchers showed that a small designer protein can block this activity and reduce the spreading of GBM cells grown in the laboratory.
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As tags on household appliances warn, water conducts electricity extremely well. Now, scientists have found that enhanced electrical conductivity in parts of Earth’s mantle may signal the presence of water far below our planet’s surface.
A mutation in a gene that helps regulate high blood pressure is a cause of inherited kidney disease, according to a new study.
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