SCIENCE IN THE NEWS DAILY
Biologists Construct Self-assembling Tiles of DNA
from the Los Angeles Times (Registration Required)
Harvard biologists have brought new meaning to the term "fine print" by devising microscopic tiles made of DNA that self-assemble into letters, Chinese characters, emoticons and other shapes.
More than mere doodling, their advance, detailed this week in the journal Nature, could make it easier and cheaper to build tiny DNA devices capable of delivering drugs or aiding the study of biochemistry, scientists said.
"This technique will accelerate the research field of DNA nanotechnology," said Ebbe Sloth Andersen, a researcher at Aarhus University in Denmark who collaborated on an editorial that accompanied the report.
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Extreme events, such as super floods and hurricanes, are becoming more common, so civil engineers are trying to adapt civil infrastructure such as bridges to these unpredictable and sometimes devastating meteorological events. Engineer Ana Barros discusses how engineering can prepare us for extreme weather events, but also how changing climate and population conditions can affect the ability of infrastructure to hold up over time.
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