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Zap! Graphene is bad news for bacteria

Researchers discovered laser-induced graphene is highly effective against bacteria and resists biofouling. When electrified, LIG kills bacteria through a combination of contact with its rough surface, electrical charge, and toxicity from hydrogen peroxide production.

SourceRice University·JournalACS Applied Materials & Interfaces·DateMay 22, 2017

Entropy landscape sheds light on quantum mystery

Researchers precisely measured the entropy of a cerium copper gold alloy to shed light on high-temperature superconductivity and similar phenomena. The study provides new evidence about the possible causes of these phenomena near a quantum critical point, where electrons fluctuate between two different quantum states.

SourceRice University·JournalNature Physics·DateMay 15, 2017

Populations adapt as nature and nurture work together

Researchers found that genetic variations influence fruit fly larvae's ability to associate odors with pain and pleasure, leading to better decision-making about pupation. The study suggests a link between learning and environmental cues, highlighting the complex interplay of nature and nurture in shaping behavior.

'Hot' electrons don't mind the gap

Researchers found that hot electrons can create a photovoltage about a thousand times larger than what is seen if there is no gap. The discovery shows the potential for nanoscale photodetectors to convert light into electricity and sensors or other sophisticated electronics.

SourceRice University·JournalThe Journal of Physical Chemistry Letters·DateMay 8, 2017

Rice U. unveils dual-channel biological function generator

Researchers develop biofunction generator and bioscilloscope to analyze and manipulate two biological circuits simultaneously, enabling precise control over gene expression and protein production. The technology, based on mathematical modeling and optogenetics, offers new insights into complex synthetic biological systems.

SourceRice University·JournalMolecular Systems Biology·DateMay 8, 2017

Biology's need for speed tolerates a few mistakes

A new paper reveals that evolution has optimized two fundamental biological processes, DNA replication and protein translation, to prioritize speed over accuracy. The research suggests that a few mistakes are tolerable as long as the majority of biopolymers produced are correct, and energy savings can be significant.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateMay 2, 2017

Protein 'spy' gains new abilities

Rice University scientists have developed a new technique to label proteins in cells using bio-orthogonal tags, allowing for high spatial and temporal control. The technique uses an engineered switch that only charges tRNA with the tag when prompted, providing a snapshot of total protein synthesis in the cell.

SourceRice University·JournalACS Synthetic Biology·DateApr 27, 2017

Rice's Lydia Kavraki wins ACM Athena Lecturer Award

Lydia Kavraki, a renowned computer scientist at Rice University, has received the Association for Computing Machinery's (ACM) Athena Lecturer Award. She is recognized for inventing randomized motion-planning algorithms in robotics and developing robotics-inspired methods for bioinformatics and biomedicine.

Study: Early organic carbon got deep burial in mantle

A Rice University study found that fossilized organic carbon could have been deeply buried in the mantle starting around 2.4 billion years ago, during a critical period known as the great oxidation event. The researchers discovered that the chemical composition of subducting crustal rock plays a crucial role in determining whether carb...

SourceRice University·JournalNature Geoscience·DateApr 25, 2017

Researchers working toward indoor location detection

Researchers at Rice University have developed a new indoor location detection system that uses existing mobile device sensors to improve accuracy and energy efficiency. By leveraging machine learning algorithms and incorporating information from standard human movements, the system can estimate accurate locations even with noisy sensors.

SAVI camera ditches long lens for distant images

The SAVI camera uses laser light to capture high-resolution images of distant objects, eliminating the need for a long lens. The technology has potential applications in visible light imaging, with researchers envisioning real-time, high-resolution capture using this synthetic aperture approach.

SourceRice University·JournalScience Advances·DateApr 14, 2017

Rice U. scientists add to theory about Huntington's mechanism

Researchers use computer simulations to show how N-terminal sequence encourages aggregation of huntingtin protein fragments while polyproline inhibits it. This discovery offers a new target for drug development to halt Huntington's disease progression. The study also highlights the involvement of the cytoskeleton in the disease mechanism.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateApr 10, 2017

'Fuzzy' fibers can take rockets' heat

The new composite fibers, developed in collaboration with NASA, have strong interlocking connections that make them less prone to cracking and seal the material to prevent oxygen from changing its chemical composition. The fibers are also resistant to high temperatures and can make entire turbo engines significantly lighter.

SourceRice University·JournalACS Applied Materials & Interfaces·DateMar 30, 2017

Artificial photosynthesis steps into the light

Researchers at Rice University have developed an artificial photosynthesis material that can split water into hydrogen and oxygen using sunlight. The catalyst, made from iron, manganese, and phosphorus, is efficient and easy to manufacture, paving the way for a clean renewable source of hydrogen fuel.

SourceRice University·JournalACS Nano·DateMar 23, 2017

Rice U. refines filters for greener natural gas

Researchers at Rice University have developed a new material that balances carbon dioxide sequestration and methane selectivity in natural gas production. The filter, made with a polymer-based sorbent, achieves optimal performance by adjusting the ratio of potassium, oxygen, and hydrogen activation reagents during processing.

Pulverizing electronic waste is green, clean -- and cold

Researchers at Rice University have developed an eco-friendly method to recycle electronic waste by using a cryo-mill to pulverize circuit boards into separated powders. The process breaks down components into homogenous powders that can be reused, reducing the need for energy-intensive processes and minimizing environmental harm.

SourceRice University·JournalMaterials Today·DateMar 21, 2017

'Preventable' asthma attacks in Houston cost millions

A new study reveals that 'preventable' asthma attacks among schoolchildren in Houston result in significant healthcare costs. The researchers found a strong link between asthma incidents and schools on the city's east side, with African-American children comprising the largest percentage of cases.

SourceRice University·JournalJournal of School Health·DateMar 13, 2017

Statistics method shows networks differ in epileptic brains

A novel statistical approach has been developed to analyze brain activity data from patients with epilepsy, revealing distinct patterns of connectivity in the brains of those with temporal lobe epilepsy. The findings suggest that abnormal bidirectional interactions may play a role in the development of seizures.

SourceRice University·JournalHuman Brain Mapping·DateMar 6, 2017

Unique protein partly to blame for worm's digestive distress

Researchers have discovered a unique protein in the Orsay virus, a nematode worm virus, that plays a crucial role in binding to cells and infecting them. The protein's molecular structure has potential antiviral applications, and its study could guide bioengineers in developing synthetic variations of the virus to target parasitic worms.

SourceRice University·JournalPLOS Pathogens·DateMar 6, 2017

New path suggested for nuclear fusion

Scientists at Rice University and Chile have proposed a new approach to nuclear fusion by simulating the use of shaped laser pulses to control atomic reactions. This method could potentially produce energy efficiently from deuterium and tritium, with the goal of creating a more sustainable and clean source of power.

Racial gap in children's asthma linked to social inequality

A new study from Rice University found that African-American and poor children in Houston have a higher proportion of asthma due to social inequalities in their neighborhoods. Children living in poor neighborhoods, regardless of race, are more likely to develop asthma compared to those in middle-class or affluent areas.

SourceRice University·JournalMaternal and Child Health Journal·DateMar 1, 2017

Nano 'sandwich' offers unique properties

Rice University researchers simulate a nanoscale sandwich of graphene and magnesium oxide, offering unique properties for molecular sensing, catalysis, and bio-imaging. The hybrid material has tunable band gaps and optical properties, making it suitable for various applications.

SourceRice University·JournalNanoscale·DateFeb 27, 2017

Rice U. study probes microbe, virus co-evolution

A Rice University study models the dynamic evolution of the microbial immune system, revealing a three-region phase diagram where phages thrive or are driven to extinction. The study explains confusing CRISPR experimental results by highlighting the importance of encounter rates and mutation parameters.

SourceRice University·JournalInterface·DateFeb 21, 2017

A case where smoking helped

Researchers found that a specific mutation in hemoglobin makes it selectively bind to carbon monoxide from cigarette smoke, preventing oxidation and anemia. The father's smoking habit prevents him from developing the disease, while his daughter requires treatment with antioxidants to manage her condition.

SourceRice University·JournalJournal of Biological Chemistry·DateFeb 16, 2017

Good vibrations help reveal molecular details

Rice University researchers have developed a new method to analyze molecules in biomembranes, called SABERS. It uses plasmonic properties of gold nanoparticles to extract structural details from unlabeled molecules. The technique was tested on three structures and found the surfactant layer tilted by 25 degrees.

SourceRice University·JournalNano Letters·DateFeb 15, 2017