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Washington University in St. Louis News & Information >

Science & Technology November Tip Sheet

Nov. 3,
2009 --
Tip sheets highlight timely news and events at Washington
University in St. Louis. For more information on any of the
stories below or for assistance in arranging interviews,
please see the contact information listed with each story.


Working up a sweat

Dinosaurs were warm-blooded, new study says

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Nov. 11,
2009 -- Were dinosaurs "warm-blooded" like present-day mammals and birds, or "cold-blooded" like present day lizards? The implications of this simple-sounding question go beyond deciding whether or not you'd snuggle up to a dinosaur on a cold winter's evening. In a study published this week in the journal PLoS ONE, a team of researchers, including Herman Pontzer, Ph.D., assistant professor of anthropology in Arts & Sciences at Washington University in St. Louis, has found strong evidence that many dinosaur species were probably warm-blooded.
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A tiny cage of gold responds to light, opening to empty its contents

An exquisite container

| Nov. 3,
2009 -- A tiny cage of gold covered with a smart polymer responds to light, opening to empty its contents and resealing when the light is turned off. The smart nanocages could be used to deliver drugs directly to target sites, thus avoiding systemic side effects.
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