Tag Archives: nanotechnology

Tuning for terahertz waves with graphene

As you may already know if you follow science and technology even a little, graphene is a wonder substance. It’s a cousin of graphite, the stuff in ‘lead’ pencils, which is to say pure carbon. It’s growing array of properties are generally a result of two things: Graphene is a layer of carbon only one […]
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Micromold technology: New technique for fabricating cells and tissues

As they say, there’s more than one way to skin a cat. Perhaps they should also say, there’s more than one way to make a cat skin. One of the key objectives of synthetic biology is to create materials that can imitate the functions of cells and tissues, like creating the building blocks of biological […]
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DNA Computing: Advances in organic circuits

DNA logic gate components……Credit: Royal Publishing Society Let’s come at computers from a different angle for a moment. An alien species lands on earth. Their spaceship doesn’t look like a spaceship. It looks like a very large blob, of sorts. It’s a blob because the whole thing is organic, not a scrap of metal on […]
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Finally, a self-powered wireless nanoscale sensor

Nanogenerator system……….Credit: NanoLetters, American Chemical Society One day the world may well be blanketed with sensors (metaphorically). If so, it will be the result of advances in nanotechnology. Perhaps it will be derived from the work of Zhong Lin Wang and his group of ambitious researchers at The Georgia Institute of Technology (Georgia Tech, Atlanta, […]
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Connecting to neurons with semiconductor nanotubes

“Patching into the brain” is a staple of science fiction and you hear about it fairly often in neuroscience; connecting ‘wires’ into the brain somehow seems routine. It’s not. Scientists and sometimes doctors do lots of things with reading or probing the brain with external (on the skin) sensors. They also occasionally do neural implants […]
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NEWS: Short List

Transcranial direct current stimulation: Stoking the brain with electricity – Brain Enhancement | While most likely the majority of neuroscientists conduct experiments to read the electrical activity in the brain, there are some interested in stimulating the brain with electricity. With modern techniques this stimulation has become more precise, and the monitoring of reactions (that’s […]
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Nanowire transistors: A next step for digital technology

Remember “Fast, cheap, good – pick any two?” How about “Fast, small, low power – pick any two?” Doesn’t ring a bell? This ‘perfect trio’ applies to transistors. Typically, if a transistor is fast, it uses energy like crazy. If it’s really small, it gets very hot. Fast and small often go together, but at […]
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Graphene spintronics: Studies show promise

If you’ve had any contact with the concept of ‘digital devices’ (as in theory of, not the use of) you’ve heard it explained like ‘switches’ (i.e. gates) that are either ON or OFF, zeroes or ones – the binary code – that sort of thing. Information is stored or processed based on a sequence of […]
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Transformation optics: the light fantastic

Third in a series of posts inspired by ten topics in ‘Insights of the Decade’ from the December 17, 2010 special issue of Science Magazine The topics are: Inflammation, climatology, tricks of light, alien planets, the microbiome, cell development, Martian water, the DNA time machine, cosmology and epigenetics. The original articles are now behind a […]
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Nobels for trend setting: Graphene and IVF

Nobel Prizes are sometimes perfunctory – lifetime achievement, arcane fields. Not this year. The Nobel committees seem to have their brains operating with a vision; they’re seeing a larger context and signaling their awareness. This year’s Nobel Prize for Medicine and Physiology went to Robert Edwards the founding father of in-vitro fertilization (IVF). This is […]
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