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.

Engineered Bacteria Produce Biofuel Alternative for High-Energy Rocket Fuel

March 26, 2014 -- Researchers at the Georgia Institute of Technology and the Joint BioEnergy Institute have engineered a bacterium to synthesize pinene, a hydrocarbon produced by trees that could potentially replace high-energy fuels, such as JP-10, in missiles and other aerospace applications.

Robotic Arm Probes Chemistry of 3-D Objects by Mass Spectrometry

March 26, 2014 - A new robotic system at Georgia Tech’s Center for Chemical Evolution could soon let scientists better simulate and analyze the chemical reactions of early Earth on the surface of real rocks to further test the theory that catalytic minerals on a meteorite’s surface could have jump-started life’s first chemical reactions.

Microfluidic Device With Artificial Arteries Measures Drugs’ Influence on Blood Clotting

March 24, 2014 - A new microfluidic method for evaluating drugs commonly used for preventing heart attacks has found that while aspirin can prevent dangerous blood clots in some at-risk patients, it may not be effective in all patients with narrowed arteries. The study, which involved 14 human subjects, used a device that simulated blood flowing through narrowed coronary arteries to assess effects of anti-clotting drugs.

Fluorescent jungle gyms made of DNA

March 14, 2014 - A new paper in Science describes DNA-based polyhedral shapes that are larger and stronger than scientists have built before. Right now, these are just static shapes. But they provide the scaffolding on which scientists could build robot walkers, or cages with doors that open and close.

Biomolecular Tweezers Facilitate Study of Mechanical Force Effects on Cells and Proteins

March 10, 2014 -- A new type of biomolecular tweezers could help researchers study how mechanical forces affect the biochemical activity of cells and proteins. The devices – too small to see without a microscope – use opposing magnetic and electrophoretic forces to precisely stretch the cells and molecules.

OneBusAway App Now Tracks MARTA Trains in Real Time

March 5, 2014 - The mobile app OneBusAway, which tracks public transportation in real time, now includes arrival times for MARTA trains in addition to the MARTA buses and Georgia Tech shuttles already featured in the app.

Brain Circuits Multitask to Detect, Discriminate the Outside World

March 5, 2014 - A new study found that neural circuits in the brain rapidly multitask between detecting and discriminating sensory input, such as headlights in the distance. That’s different from how electronic circuits work, where one circuit performs a very specific task. The brain, the study found, is wired in way that allows a single pathway to perform multiple tasks.

Self-Administration of Flu Vaccine with a Patch May be Feasible, Study Suggests

February 26, 2014 -- The annual ritual of visiting a doctor’s office or health clinic to receive a flu shot may soon be outdated, thanks to the findings of a new study published in the journal Vaccine. The research, which involved nearly 100 people recruited in the metropolitan Atlanta area, found that test subjects could successfully apply a prototype vaccine patch to themselves.