Detecting Disease

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True color fluorescence microscopy images of dual-function beads embedded with iron oxide and (A) 630 nm emission QDs and (B) 580 nm emission QDs. The beads are coated with an amphiphilic polymer and soluble in water. Images were taken at 60x magnif ...
True color fluorescence microscopy images of dual-function beads embedded with iron oxide and (A) 630 nm emission QDs and (B) 580 nm emission QDs. The beads are coated with an amphiphilic polymer and soluble in water. Images were taken at 60x magnification under blue light excitation. [Sathe and Nie, Development of dual-function microbeads embedded with quantum dots and iron oxide nanocrystals for biomedical applications, SPIE Photonics West, 2007, 6448-6.]

Analyzing human blood for a very low virus concentration or a sample of water for a bioterrorism agent has always been a time-consuming and difficult process. Researchers at the Georgia Institute of Technology and Emory University have developed an easier and faster method to detect these types of target molecules in liquid samples using highly porous, micron-sized, silica beads.


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All News summaries for February 14, 2007

Sensitive nanowire disease detectors made by Yale scientists

Oct 10, 2008 | User rating: not rated yet
Yale scientists have created nanowire sensors coupled with simple microprocessor electronics that are both sensitive and specific enough to be used for point-of-care (POC) disease detection, according to a report in Nano ...

Mimicking gecko feet: Dry adhesive based on carbon nanotubes gets stronger

Oct 09, 2008 | User rating: not rated yet
The race for the best "gecko foot" dry adhesive got a new competitor this week with a stronger and more practical material reported in the journal Science by a team of researchers from four U.S. institutions.

Researchers design artificial cells that could power medical implants

Oct 09, 2008 | User rating: not rated yet
Researchers at Yale University have created a blueprint for artificial cells that are more powerful and efficient than the natural cells they mimic and could one day be used to power tiny medical implants.

A new material could act as a nanofridge for microchips

Oct 08, 2008 | User rating: not rated yet
In the past few years, the design and manufacturing of circuits at nanoscopic scale for integrated devices has become one of the frontier fields in new material science and technology. The significant reduction achieved in ...

Using living cells as nanotechnology factories

Oct 08, 2008 | User rating: not rated yet
In the tiny realm of nanotechnology, scientists have used a wide variety of materials to build atomic scale structures. But just as in the construction business, nanotechnology researchers can often be limited by the amount ...
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