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Vanderbilt University


Spinach power gets a big boost

Researchers at Vanderbilt University have developed a way to combine the photosynthetic protein from spinach with silicon to produce substantially more electrical current. The new design produces current levels nearly 1,000 times higher than previous biohybrid solar cells and has the potential to power small devices.

SourceVanderbilt University·JournalAdvanced Materials·DateSep 4, 2012

From aflatoxin to sake

Researchers mapped genetic differences between domesticated fungus Aspergillus oryzae and its wild relative, finding extensive genome remodeling. The study suggests microbes undergo metabolic changes for desired functions rather than growth and form alterations.

SourceVanderbilt University·JournalCurrent Biology·DateJul 12, 2012

Quantum dots brighten the future of lighting

Researchers have successfully boosted the fluorescent efficiency of ultra-small quantum dots to as high as 45%, making them suitable for special lighting applications. This improvement translates to a higher luminous efficiency of about 40 lumens/watt, outperforming existing LEDs and incandescent bulbs.

SourceVanderbilt University·JournalJournal of the American Chemical Society·DateMay 8, 2012

Dopamine impacts your willingness to work

A Vanderbilt University study found that individual differences in dopamine levels in specific brain areas affect motivation and willingness to work for rewards. The research provides new insights into the role of dopamine in human behavior and may have implications for treating mental illnesses like depression and schizophrenia.

Barrier to faster graphene devices identified and suppressed

Researchers at Vanderbilt University have identified a major barrier to faster graphene devices, finding that charged impurities on the surface of graphene scatter electrons. By using electrically neutral liquids, they achieved record-levels of room-temperature electron mobility, three times greater than previous graphene-based devices.

SourceVanderbilt University·JournalNature Communications·DateMar 13, 2012

Ultrafast sonograms shed new light on rapid phase transitions

Researchers have developed an ultrafast method to track structural changes in solid materials during phase transitions. This technique sheds new light on vanadium dioxide's fast transformation between transparent and reflective phases. The study provides valuable insights into designing high-speed optical switches using this material.

SourceVanderbilt University·JournalNature Communications·DateMar 8, 2012

Putting the body back into the mind of schizophrenia

A study using the rubber hand illusion found that people with schizophrenia have a weakened sense of body ownership. This suggests that movement therapy could be helpful for these individuals, particularly those who experience out-of-body experiences. The findings also support the idea that exercise may reduce symptoms of schizophrenia.

SourceVanderbilt University·JournalPLOS ONE·DateOct 31, 2011

Robot biologist solves complex problem from scratch

A team of scientists has successfully demonstrated a computer's ability to analyze raw experimental data from a biological system and derive the basic mathematical equations that describe its operation. This achievement marks one of the most complex scientific modeling problems solved completely from scratch by a computer.

SourceVanderbilt University·JournalPhysical Biology·DateOct 13, 2011

New insight into impulse control

A study published in the Journal of Neuroscience found that differences in when movement neurons begin accumulating information from sensory neurons explain adjustments in response times. This discovery forces a major modification to existing cognitive models of impulse control, shedding new light on how the brain controls basic impulses.

Memories may skew visual perception

Researchers found that holding a memory of a visual event can 'contaminate' visual perception, leading to exaggerated misperceptions. The study used a visual illusion to demonstrate this effect, showing participants reported more dramatic changes in motion direction than actually existed.

SourceVanderbilt University·JournalPsychonomic Bulletin & Review·DateJul 19, 2011

Nanotechnologists must take lessons from nature

Researchers Peter Cummings and Michael Simpson propose that mimicking natural processes can lead to more efficient and reliable devices. By exploiting contrarian behavior and 'noise,' scientists can develop technology that outperforms traditional methods, as seen in the humble bacterial cell's ability to withstand modern medicines.

SourceVanderbilt University·JournalACS Nano·DateApr 28, 2011

Discovery of jumping gene cluster tangles tree of life

A team of researchers at Vanderbilt University has discovered a large cluster of genes that appeared to jump directly from one fungus species to another, significantly strengthening the argument for a mosaic theory of evolution. The finding was made possible by comparing the genomes of nearly 100 species of fungi.

SourceVanderbilt University·JournalCurrent Biology·DateFeb 4, 2011

Tuning graphene film so it sheds water

Researchers at Vanderbilt University developed a technique to create graphene oxide films with adjustable surface roughness, leading to the creation of super-hydrophobic and super-hydrophilic surfaces. This could lead to applications in self-cleaning glasses, antifogging surfaces, corrosion protection, and more.

SourceVanderbilt University·JournalACS Nano·DateFeb 1, 2011

Tackling the erosion of a special river island

A team of researchers led by David Furbish from Vanderbilt University is studying the erosion of Locke Island, which has been alarmingly eroding away since the 1970s. The island's difficulties began when the east bank of the river adjacent to it collapsed, causing a landslide that pinched down the channel flowing around the island.