New graphene-based sensor design could improve food safety

In the U.S., more than 100 food recalls were issued in 2017 because of contamination from harmful bacteria such as Listeria, Salmonella or E. coli. A new sensor design could one day make it easier to detect pathogens in ...

New technique proposed to make objects invisible

In recent years, invisibility has become an area of increasing research interest due to advances in materials engineering. This research work by the UEx, which has been published in Scientific Reports, explored the electromagnetic ...

Thin carbon sheets for shielding against microwaves

Carbon composites have many useful properties, with new potential uses being discovered all the time. Researchers have developed a thin sheet variety to exploit its electromagnetic properties for microwave shielding.

Coating cancels acoustic scattering from odd-shaped objects

In a new twist, a team of researchers from the U.S. Naval Research Laboratory and the University of Texas at Austin has applied to acoustic waves the concept of "scattering cancellation," which has long been used to systematically ...

Holes in gold enhance molecular sensing

Non-metallic mesoporous structures have already demonstrated potential for applications in gas storage, separation, catalysis, ion-exchange, sensing, polymerization and drug delivery. Metal mesoporous films could have fascinating ...

page 1 from 4