Tethered molecular switches as step toward actuators for nanotechnology

Exposure to two different wavelengths of light can cause the azobenzene molecule to switch back and forth between two different shapes. This molecular shape-changing works well in solution but until now has not worked with molecules attached to surfaces. Now scientists from Penn State University and Rice University have found a way to make the… Continue reading Tethered molecular switches as step toward actuators for nanotechnology

Optical tweezers for nanotechnology

A nanotech version of the optical tweezers traditionally used to manipulate micrometer-scale objects manipulates objects at the 200-nm scale.

Nanotechnology for inexpensive plastic memory

A new concept for a very cheap plastic nanotech memory has been developed by combining the favorable properties of ferroelectrics and semiconductors.

Molecular clutch for bacterial flagellum may offer control mechanism for nanotechnology

The flagellum clutch mechanism may provide ideas useful for nanotech control of molecular motors.

Solar cell nanotechnology uses the right imperfections

Carbon nanotubes with the proper imperfections were found to replace more problematic and expensive materials in dye-sensitized solar cells.

Using nanotechnology to attract cells to regenerate cartilage

The combination of electrical stimulation and a nanotech surface composed of carbon nanotubes dispersed in polycarbonate urethane was found to attract cartilage-forming cells.

Nanotechnology engineers single molecules as nanorobots

Chemists have designed molecules that act like nanotech sensing robots by signaling information about their chemical environment.

Nanotechnology offers nanowire 'towels' and designer 'nanobatons' to clean up oil spills

Two different types of nanostructures have been reported as nanotech methods to clean up oil spills and other organic pollutants.

A molecule printer for nanotechnology based on spinning carbon nanotubes

Atoms or molecules could be pumped through the spinning inner CNT to form patterns of atoms or molecules—a nanotech inkjet printer.

Stripes improve drug delivery using nanotechnology

MIT scientists are discovering what controls the proper movement of nanoparticles into cells—the right kinds of molecules must be arranged in the right patterns.

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