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Tag: "nanowires" at biology news

Researchers Discover That Microbes Can Produce Miniature Electrical Wires

... by a novel microorganism known as Geobacter . The nanowires are incredibly fine, only 3-5 nanometers in width ...electrons, and it also seems likely that microbial nanowires could be useful materials for the development of extremely small electronic devices.?/p> “The mi...

Nanowires can detect molecular signs of cancer, scientists find

...cted in blood scanned by special arrays of silicon nanowires -- even when these cancer markers constitute only ...seases." Lieber and his colleagues linked slender nanowires conducting a small current with antibody receptors for certain cancer markers -- such as prostate sp...

Researchers make long DNA 'wires' for future medical and electronic devices

...nects between nanowires, or they could connect the nanowires with other electronic components," Guan said. "We are not trying to eliminate them, because we do not think they are defects. We also believe their formation is controllable, because they are almost completely absent in some experiments but abundant ...

MIT researchers build tiny batteries with viruses

... Equally important, the reactions needed to create nanowires occur at normal room temperatures and pressures, so there is no need for expensive pressure-cooking technology to get the job done. The work is important, too, because energy density is a vital quality in batteries. A lack of energy density - meanin...

Nanowire arrays can detect signals along individual neurons

...ts at Harvard University have used slender silicon nanowires to detect, stimulate, and inhibit nerve signals al.... Lieber and colleagues report on this marriage of nanowires and neurons this week in the journal Science. "We describe the first artificial synapses between n...

Encoded metallic nanowires reveal bioweapons

...x device: they are using silver and gold "striped" nanowires as supports for simultaneous immunological tests f...d gold and silver are alternated in a defined way, nanowires with different characteristic stripe patterns are produced. The pattern of optical reflections from ...

Nano-devices hold promise for early-stage cancer detection

...ssimilar technologies such as DNA, semiconductors, nanowires and polymers into "smart systems" on a small chip. The resulting micro-labs could contain miniaturized systems for fluid filtration, DNA extraction, cell processing, imaging, computing, wireless communications, and laser and radiation detection syst...

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