Oxygen-Free: RNA Was Capable of Catalyzing Electron Transfer on Early Earth with Iron’s Help, Study Suggests
A new study shows how complex biochemical transformations may have been possible under conditions that existed when life began on the early Earth. The study shows that RNA is capable of catalyzing electron transfer under conditions similar to those of the early Earth.
Biology of the Brain: Georgia Tech Researchers Seek a Better Understanding of the Brain
Researchers at Georgia Tech are applying their expertise, tools and techniques to understand on a fundamental level how the brain works. Because the human brain is immensely complex, the researchers are pursuing many levels of inquiry – from molecules to cells to circuits to the mystery of the mind itself – and also studying brain disorders and development, along with daily feats of brain activity, such as vision, speech, movement and memory.
Brain Development: Study Shows How Pathway Competition Affects Early Differentiation of Higher Brain Structures
A new study shows how the strength and timing of competing molecular signals during brain development has generated natural and presumably adaptive differences in a brain region known as the telencephalon -- much earlier than scientists had previously believed.
Artificial Transparent Skin: Arrays of Piezoelectric “Taxels” Convert Mechanical Motion to Electronic Controlling Signals for Improved Tactile Imaging
Using bundles of vertical zinc oxide nanowires, researchers have fabricated arrays of piezotronic transistors capable of converting mechanical motion directly into electronic controlling signals. The arrays could help give robots a more adaptive sense of touch, provide better security in signatures and offer new ways for humans to interact with electronic devices.
FlipperBot: Sea Turtles and Flipper-Driven Robot Reveal Principles of Moving on Sand and Other Granular Media
Based on a study of both hatchling sea turtles and "FlipperBot" -- a robot with flippers -- Georgia Tech researchers have learned principles for how both robots and turtles move on granular surfaces such as sand.
Anatomy of a Blast: Researchers Develop Sensor System to Assess the Effects of Explosions on Soldiers
To study the effects of improvised explosive devices on soldiers and help provide continuing treatment, researchers have developed a sensor system that measures the physical environment of an explosion and collects data that can correlate what the soldier experienced with long-term outcomes.
December 13, 2012 — A new study highlights the role of “helpful” colleagues – those who, for instance, provide feedback on the papers of other scientists and are willing to serve as a sounding board for new ideas.
December 13, 2012 — A device designed by engineers at the Georgia Tech Research Institute (GTRI) is part of the Hurricane Imaging Radiometer (HIRAD), an experimental airborne system developed by the Earth Science Office at the NASA Marshall Space Flight Center in Alabama.
December 10, 2012 — Researchers are creating graphene p-n junctions by transferring films of the electronic material to substrates that have been patterned by compounds that are either strong electron donors or electron acceptors.
November 30, 2012 — A research team at the Georgia Institute of Technology has received a $2.7 million award from the Defense Advanced Research Projects Agency (DARPA) to develop technology intended to help address the challenges of “big data” – data sets that are both massive and complex.
November 28, 2012 — A new online tool takes the guesswork out of developing individualized catch-up immunization schedules by allowing parents and health care providers to easily create a schedule that ensures missed vaccines and future vaccines are administered according to approved guidelines.
November 27, 2012 — Measles vaccine given with painless and easy-to-administer microneedle patches can immunize against measles at least as well as vaccine given with conventional hypodermic needles, according to research done by the Georgia Institute of Technology and the Centers for Disease Control and Prevention (CDC).
November 26, 2012 — Researchers at the Georgia Institute of Technology have received a five-year, $1.8 million grant from the National Science Foundation (NSF) to study how complex microbial systems use their genetic diversity to respond to human-induced change. The work is important because these microbial communities play critical roles in the environment, breaking down pollutants, recycling nutrients – and serving as major sources of nitrogen and carbon.
November 19, 2012 — By fabricating graphene structures atop nanometer-scale “steps” etched into silicon carbide, researchers have for the first time created a substantial electronic bandgap in the material suitable for room-temperature electronics. Use of nanoscale topography to control the properties of graphene could facilitate fabrication of transistors and other devices, potentially opening the door for developing all-carbon integrated circuits.
November 8, 2012 — Corals under attack by toxic seaweed do what anyone might do when threatened – they call for help. A study reported November 8 in the journal Science shows that threatened corals send signals to fish “bodyguards” that quickly respond to trim back the noxious alga – which can kill the coral if not promptly removed.
November 1, 2012 — Researchers have taken another step toward the goal of predicting how diseases will respond to drugs in individual patients by developing a technique able to predict from a blood sample the amount of cathepsins—protein-degrading enzymes known to accelerate these diseases—a specific person would produce.