It has long been accepted that such a thin layer of lubrication between sliding surfaces alternates along with the cycles of sticking and slipping; it starts as a solid, turns to liquid in the slipping phase and then back to a solid when the surfaces stick once again. But a recent paper suggests this model is incorrect.
This microfluidic technology uses microscale electric field gradients, acting on extremely small samples, to tell the difference between the two strains (antibiotic-resistant and antibiotic-susceptible) of Staphylococcus epidermidis.
By combining designer quantum dot light-emitters with spectrally matched photonic mirrors, a team of scientists created solar cells that collect blue photons at 30 times the concentration of conventional solar cells, the highest luminescent concentration factor ever recorded.
The inner space of carbon nanotubes can act as a template for the synthesis of nanodiamond-like carbon chains. As a team of scientists report, this templated polymerization approach paves the way for the design of novel one-dimensional nanomaterials.
Electronics is based on measuring the tiny electrical charge of electrons passing through electronic circuits. An alternative approach under development is spintronics, which instead relies not on electrons? charge, but on another of their fundamental quantum-mechanical properties: spin.