Latest David Gracias Stories

Hundreds Of Tiny Untethered Surgical Tools Deployed In First Animal Biopsies
2013-04-24 10:57:26

Johns Hopkins University By using swarms of untethered grippers, each as small as a speck of dust, Johns Hopkins engineers and physicians say they have devised a new way to perform biopsies that could provide a more effective way to access narrow conduits in the body as well as find early signs of cancer or other diseases. In two recent peer-reviewed journal articles, the team reported successful animal testing of the tiny tools, which require no batteries, wires or tethers as they...

2012-04-23 23:15:11

Self-assembling nano boxes open the door to "smart" particles for medicine, manufacturing While it is relatively straightforward to build a box on the macroscale, it is much more challenging at smaller micro- and nanometer length scales. At those sizes, three-dimensional (3-D) structures are too small to be assembled by any machine and they must be guided to assemble on their own. And now, interdisciplinary research by engineers at Johns Hopkins University in Baltimore, Md., and...

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  • Color; hue; complexion.
This word is Middle English in origin.