Nanorings: New building blocks for chemistry (03/08/2023)
Sandwich compounds are special
chemical compounds used as basic building blocks in organometallic chemistry.
So far, their structure has always been linear.
Using sound waves to image nanostructures (03/08/2023)
The potential of an ultrafast
form of transmission electron microscopy to measure sound waves in
nanostructures has been demonstrated by three RIKEN physicists. This could help
realize a high-resolution imaging method that uses ultrahigh-frequency sound
waves to image structures that are nanometers in size.
Study shows performance of photodetector heterojunctions varies with carbon nanotube diameter (03/08/2023)
Junctions between the two
different materials, single-wall carbon nanotubes (SWCNTs) and perovskite
(CsPbBr3) quantum dots (QDs)—a mechanically stable and easily customized
photovoltaic material that creates an electrical current from sunlight when
paired with another material, such as SWCNTs—form semiconductor heterojunctions
that work exceptionally well as a photodetector.
New nanotech identifies chemical composition and structure of impurities in air, liquid and living tissue (03/08/2023)
Using conventional testing
techniques, it can be challenging—sometimes impossible—to detect harmful
contaminants such as nano-plastics, air pollutants and microbes in living
organisms and natural materials. These contaminants are sometimes found in such
tiny quantities that tests are unable to reliably pick them up.
Nanoneedles formed on an electrocatalyst improve hydrogen production (03/08/2023)
The low-cost, efficient
production of hydrogen is an important step toward developing alternative,
clean energy sources. Electrochemical water splitting, which splits water into
its hydrogen and oxygen elements using an electrocatalyst, is a viable option
for producing hydrogen. Conventionally, catalysts have been based on costly
elements such as platinum, which makes it difficult to apply this technology on
a widespread, commercial scale.
Bizarre new high-strength glue can stick and unstick on command (01/08/2023)
Scientists in Japan have developed an intriguing new glue that can basically be switched on and off on demand. The adhesive sticks together when hit with one wavelength of light, and breaks apart with another, allowing it to be removed and reused easily – potentially, even underwater.
Glass-coated DNA material boasts 4x strength of steel (01/08/2023)
It may not be as catchy a name as Iron Man, but in a fight you might be better off betting on Glass DNA Nanolattice Man instead. Engineers at the University of Connecticut have developed a very strong and lightweight new material out of DNA that self-assembles into lattices, and is then coated in glass.
A floating sponge could help remove harmful algal blooms (01/08/2023)
Cambridge 3D prints game-changing smart concrete structure (23/07/2023)
Working with private industry, the University of Cambridge has gone one step beyond 3D printing with a concrete infrastructure unit that was not only made in an hour, but incorporates sensors to make it self-monitoring and, one day, self repairing.
