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[Images above] Credit: NIST


Dehydration causes graphene oxide sheets to undergo self-crosslinking

Sheets of graphene oxide can undergo spontaneous crosslinking reactions, which essentially glue the sheets together, as a result of common drying procedures. The finding broadens scientists’ understanding of basic graphene chemistry and sounds a cautionary note about processing this 2D form of carbon.

Physicists discover a ‘family’ of robust, superconducting graphene structures

Massachusetts Institute of Technology researchers reported that four and five graphene layers can be twisted and stacked at new magic angles to elicit robust superconductivity at low temperatures.

Nanoparticles can save historic buildings

Researchers from TU Wien and University of Oslo studied in detail how silicate nanoparticles can help save buildings made of porous rock by strengthening the cohesion between the grains of minerals.

Flashing creates hard-to-get 2D boron nitride

Rice University chemists used their flash Joule heating process to synthesize 2D flakes of boron nitride and boron carbon nitride. The flashed compound proved more than 92% better at protecting the copper than polyvinyl alcohol alone or a similar compound with commercial hexagonal boron nitride.


These energy-packed batteries work well in extreme cold and heat

Engineers at the University of California, San Diego developed lithium-ion batteries that perform well at freezing cold and scorching hot temperatures, while packing a lot of energy. They accomplished this feat by developing an electrolyte made of a liquid solution of dibutyl ether mixed with a lithium salt.

Seeing photovoltaic devices in a new light

Osaka University researchers discovered that changing the color of incident light from visible to ultraviolet on solar cells made from an antimony sulfiodide:sulfide composite induced a reversible change in the output voltage, while leaving the current generated unchanged. This discovery may lead to new functional light-sensing and imaging devices.


Graphene tattoo provides cuffless blood-pressure monitoring

Researchers from University of Texas and Texas A&M University developed a sticky and stretchable graphene electronic tattoo for blood-pressure monitoring that is comfortable to wear for long periods. The device performs measurements by injecting a low-intensity electrical current into the skin and then analyzing the body’s response.


Radiation for responsible recycling: A microwave-based method to recycle batteries

Ritsumeikan University researchers developed a distributed recycling system that employs microwave-based heating for recycling old alkaline batteries. The method achieved a recovery rate of 97% of manganese oxide and zinc from the alkaline batteries.

Fiber optic sensing detects tremor from Icelandic subglacial volcano

Researchers used a fiber-optic cable on the ice cap of an Icelandic subglacial volcano to detect low-frequency volcanic tremor, suggesting this technology could be useful in monitoring other ice-covered volcano systems.


Toward autonomous prediction and synthesis of novel magnetic materials

Researchers from Tokyo University of Science and National Institute for Materials Science developed a data-driven approach for automating prediction and synthesis of new magnetic materials.

Thin mica shows semiconducting behavior

Researchers at Shibaura Institute of Technology and Indian Institute of Technology Madras observed a semiconducting behavior in thin muscovite mica flakes, characterized by an electrical conductivity that is 1,000 times larger than that of thick muscovite mica.

Team achieves ‘significant breakthrough’ in data-encoding material

Researchers from the University of Nebraska–Lincoln demonstrated that growing a higher-quality, larger-grained crystal of hafnium oxide can actually generate higher polarization and potentially more reliable ferroelectricity.

Electric vehicles pass the remote road test

Electric vehicles can handle the distances required to travel to essential services in remote and regional Australia, according to a new study from The Australian National University. The vast majority of residents (93%) could do such trips with even the lower-range of electric vehicles currently available.