Posts Tagged ‘nanotubes’

Perfect nanotubes glow the brightest

RICE (US) — Researchers have identified the qualities that account for brighter fluorescence among single-walled carbon nanotubes. Continue…

Wednesday, February 1, 2012 14:25 - 0 Comments

Science & Technology - Dec 9, 2011 11:21 - 0 Comments

Lasers track nanotubes in living cells

PURDUE (US) — A new imaging tool that tracks carbon nanotubes in living cells and the bloodstream could advance their use for biomedical research and clinical medicine. (more…)

Science & Technology - Nov 22, 2011 7:25 - 0 Comments

Sort nanotubes for better electronics

STANFORD (US) — A new technique could make semiconducting carbon nanotubes more commercially viable for use in printable circuits, bendable display screens, stretchable electronics, and solar technology. (more…)

Science & Technology - Nov 18, 2011 11:07 - 0 Comments

Fuse DNA, nanotubes for better biosensors

PURDUE (US) — A new method for stacking synthetic DNA and carbon nanotubes onto a biosensor electrode may lead to more accurate ways to measure and manage diseases, such as diabetes. (more…)

Science & Technology - Sep 20, 2011 14:02 - 2 Comments

Fatal attraction: Cells ingest nanotubes

BROWN U. (US) — Carbon nanotubes and other long nanomaterials can spell trouble for cells. The reason: Cells mistake them for spheres and try to engulf them. (more…)

Science & Technology - Aug 24, 2011 10:11 - 1 Comment

Nano bundles offer ‘extreme’ storage

RICE U. (US) — A new solid-state, nanotube-based supercapacitor promises to combine the best qualities of high-energy batteries and fast-charging capacitors in a device suitable for extreme environments. (more…)

Science & Technology - Aug 9, 2011 15:22 - 0 Comments

Nanotubes used as chemical reactors

U. NOTTINGHAM (UK) — A new method of making molecules could pave the way for a new generation of faster, smaller, and more powerful computers and data storage devices. (more…)

Nano pickle: Pick the perfect proteins

U. PENN (US) — A new algorithm helps engineers tackle the seemingly impossible task of selecting the right raw materials for nanoscale construction. (more…)

Science & Technology - Dec 17, 2010 12:23 - 0 Comments

Slice nanotubes with sonic booms

BROWN (US) — It’s difficult to imagine getting a precise cut on a carbon nanotube, with a diameter 1/50,000th the thickness of a human hair. The trick, researchers say, is to squeeze and twist nanotubes using sonic booms. (more…)

Science & Technology - Oct 25, 2010 11:04 - 0 Comments

Nanotubes get loopy in 3-D

U. MICHIGAN (US) — Twisting spires, concentric rings, and bending petals are a few of the new 3-D shapes engineers can make from carbon nanotubes using a new manufacturing process. (more…)

Science & Technology - Jan 27, 2010 14:53 - 0 Comments

From gecko feet, lesson in nanotube transfer

RICE (US)—Geckos seem to defy gravity by sticking to a surface no matter how smooth it appears to be—all thanks to the electrical attraction between millions of microscopic hairs on the gecko’s feet and the surface. The same concept is allowing researchers to transfer forests of strongly aligned, single-walled carbon nanotubes from one surface to another in a matter of minutes. (more…)

Science & Technology - Jan 13, 2010 15:23 - 1 Comment

filamentous blue-green algae Oscillatoria

Testing water with nanotube paper strips

U. MICHIGAN—Researchers have developed a quick and inexpensive way to test drinking water using paper strips infused with carbon nanotubes. (more…)

Science & Technology - Dec 17, 2009 13:23 - 0 Comments

Scientists film photons with electrons

CALTECH (US)—Recently invented techniques—that allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale matter—have been used to image the evanescent electrical fields produced by the interaction of electrons and photons, and to track changes in atomic-scale structures. (more…)

Science & Technology - Dec 9, 2009 10:43 - 0 Comments

Nanotubes + ink + paper = instant battery

STANFORD (US)—Dip an ordinary piece of paper into ink infused with carbon nanotubes and silver nanowires, and it turns into a battery or supercapacitor. Crumple the piece of paper, and it still works. (more…)

Science & Technology - Oct 1, 2009 11:16 - 0 Comments

Brain implants coated with nanotubes

U. MICHIGAN (US)—Newly developed brain implants that can more clearly record signals from surrounding neurons in rats may lead to more effective treatment of disorders such as Parkinson’s disease and paralysis. (more…)

Science & Technology - Sep 17, 2009 19:27 - 7 Comments

Nanotubes may yield greener solar cells

In a carbon nanotube-based photodiode, electrons (blue) and holes (red) release their excess energy to efficiently create more electron-hole pairs when light is shined on the device. (Credit: Nathan Gabor)

Science & Technology - Sep 11, 2009 9:48 - 0 Comments

Blame the metal, not the nanotubes

Metal catalysts used to create carbon nanotubes can block a key signaling pathway in neurons. Experiments show the metal particles tend to plug cellular pores normally reserved for calcium ions. (Credit: Lorin Jakubek/Brown University)

Science & Technology - Jul 31, 2009 14:22 - 0 Comments

Need nanotubes? Go fly a kite

Chemist Bob Hauge and his coauthors say the odako bundles are analogous to the gigantic kites that take many hands to fly, hence the many lines that trail from them. In this case, the lines are nanotubes, hollow cylinders of pure carbon.

Science & Technology - Apr 19, 2009 18:12 - 0 Comments

Unzipping to build the future

RICE (US)—Scientists have found a simple way to create basic elements for aircraft, flat-screen TVs, electronics, and other products that incorporate sheets of tough, electrically conductive material. And the process begins with a zipper. (more…)