Archive for the ‘Materials’ Category

Self-Assembled Silver Superlattices Create Molecular Machines with Hydrogen-Bond “Hinges” and Moving “Gears”

April 6, 2014 — A combined computational and experimental study of self-assembled silver-based structures known as superlattices has revealed an unusual and unexpected behavior: arrays of gear-like molecular-scale machines that rotate in unison when pressure is applied to them.

Heat-Conducting Polymer Cools Hot Electronic Devices at 200 Degrees C

March 30, 2014 — By harnessing an electropolymerization process to produce aligned arrays of polymer nanofibers, researchers have developed a thermal interface material able to conduct heat 20 times better than the original polymer — operating at temperatures of up to 200 degrees Celsius.

Silicon-Germanium Chip Sets New Speed Record

February 18, 2014 — A research collaboration has demonstrated the world’s fastest silicon-based device to date. The investigators operated a silicon-germanium (SiGe) transistor at 798 gigahertz (GHz) fMAX, exceeding the previous speed record for silicon-germanium chips by about 200 GHz.

Researchers Hijack Cancer Migration Mechanism to “Move” Brain Tumors

February 16, 2014 — One factor that makes glioblastoma cancers so difficult to treat is that malignant cells from the tumors spread throughout the brain by following nerve fibers and blood vessels to invade new locations. Now, researchers have learned to hijack this migratory mechanism, turning it against the cancer by using a film of nanofibers thinner than human hair to lure tumor cells away.

Intergraph Acquires GT STRUDL Engineering Software System from Georgia Tech

February 10, 2014 — GT STRUDL, a structural engineering software system developed at Georgia Tech, has been acquired by Intergraph®, a leading producer of engineering enterprise software.

Ballistic Transport in Graphene Suggests New Type of Electronic Device

February 5, 2014 — Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost no resistance even at room temperature – a property known as ballistic transport.

NSF I-Corps: Turning Research Discoveries into Companies and Jobs

January 22, 2014 — Georgia Tech was one of the first nodes in the National Science Foundation’s (NSF) I-Corps program, which helps faculty members commercialize research discoveries. Twelve teams of researchers have now gone through the program.

Graphene-Based Nano-Antennas May Enable Networks of Tiny Machines

December 12, 2013 — Researchers are taking advantage of the unique properties of graphene to design tiny antennas that may open the possibility for networks of nanometer-scale machines. Graphene could generate a type of electronic surface wave that would allow antennas just one micron long and 10 to 100 nanometers wide to do the work of much larger antennas.

Harvesting Electricity: Triboelectric Generators Capture Wasted Power

December 9, 2013 — Researchers are developing a family of generators that provide power for portable electronic devices and sensors by harnessing the triboelectric effect to capture mechanical energy that would otherwise be wasted.

Sticky Business: Magnetic Pollen Replicas Offer Multimodal Adhesion

November 21, 2013 — Researchers have created magnetic replicas of sunflower pollen grains using a wet chemical, layer-by-layer process that applies highly conformal iron oxide coatings. The replicas possess natural adhesion properties inherited from the spiky pollen particles while gaining magnetic behavior, allowing for tailored adhesion to surfaces.