News by Subject Chemistry & Physics

A chip, which can sense antigens at one part per quadrillion molar mass, was created. Antigens derived from diseases and present in blood and saliva were adhered onto the surface of a flexibly deformable nanosheet. The amount of force generated during the interaction between adhered antigens was then converted into nanosheet deformation information in order to successfully detect specific antigens. This sensor chip allows antigen and antibody tests to be carried out from home.

New antennas so thin that they can be sprayed into place are also robust enough to provide a strong signal at bandwidths that will be used by fifth-generation (5G) mobile devices. Performance results for the antennas, which are made from a new type of two-dimensional material called MXene, were recently reported by researchers at Drexel University and could have rammifications for mobile, wearable and connected "internet of things" technology.

Australian researchers have located the 'sweet spot' for positioning qubits in silicon to scale up atom-based quantum processors.

Scientists of Far Eastern Federal University (FEFU) with international collaborators propose direct magnetic writing of skyrmions, i.e. magnetic quasiparticles, and skyrmion lattices, within which it is possible to encode, transmit, process information, and produce topological patterns with a resolution of less than 100 nanometers. This brings closer miniaturized post-silicon electronics, new topological cryptography techniques, and green data centers, reducing the load on the Earth's ecosystem significantly. A related article appears in ACS Nano.

A breakthrough improvement in ultra?efficient thermoelectric materials, which can convert heat into electricity and vice versa, has great potential for applications ranging from low-maintenance, solid-state refrigeration to compact, zero-carbon power generation--possibly including small, personal devices powered by the body's own heat. Heat 'harvesting' takes advantage of the free, plentiful heat sources provided by body heat, automobiles, everyday living, and industrial process.

Faster, smaller, smarter and more energy-efficient chips for everything from consumer electronics to big data to brain-inspired computing could soon be on the way after engineers at The University of Texas at Austin created the smallest memory device yet.

Resistive switching memory devices offer several advantages over the currently used computer memory technology. Researchers from the MIPT Atomic Layer Deposition Lab have joined forces with colleagues from Korea to study the impact of electrode surface morphology on the properties of a resistive switching memory cell. It turned out that thicker electrodes have greater surface roughness and are associated with markedly better memory cell characteristics