Researchers are developing technology to make pacemakers battery-free. The advancement is based upon a piezoelectric system that converts vibrational energy - created inside the chest by each heartbeat - into electricity to power the pacemaker.
In animals, the physical mechanisms and function of structural color have been studied significantly as a signal for recognition or mate choice. On the other hand, scientists believe that such shimmering in plants can actually influence animal behavior by attracting pollinators better than their non-iridescent counterparts.
Although a so-called 'phonon laser' has been previously demonstrated, the high device quality and strict experimental conditions make it too complex for a rapid diffusion of the technology. Researchers now detail a new physical mechanism that allows phonon lasing under far more relaxed configurations.
An international team of researchers created an ultrafast all-optical switch on silicon nanostructures. This device may become a platform for future computers and permit to transfer data at an ultrahigh speed.
Scientists have created a new, more precise algorithm for simulating particle interactions when a single impurity is introduced into a Fermi sea. The algorithm shows that when these particles interact, the transition from quasiparticle to bound molecule in a polarized two-dimensional system is smooth.
Researchers have developed a new optical detector from graphene which reacts very rapidly to incident light of all different wavelengths and even works at room temperature. It is the first time that a single detector has been able to monitor the spectral range from visible light to infrared radiation and right through to terahertz radiation.
Scientists have introduced a new class of hybrid aerogels made from silica and plant-derived pectins. The new materials have comparable thermal properties but are far more mechanically stable. In addition, they are made by an aqueous, 'green' process from bioderived materials.
An ultrapure material taken to pressures greater than that in the depths of the ocean and chilled to temperatures colder than outer space has revealed an unexpected phase transition that crosses two different phase categories.