Spacer Parameters (a) Schematic of spaser as multimodal cellular nanoprobe. (b) Comparison of emission in suspensions of uranine spaser at 528 m (green peak; pump energy fluence 70 mJ cm−2), fluorescein spaser (magenta peak), QD with maximum at 576 nm (inset, red peak) and GNRs (right) with silica shell doped with DCM. TEM images shows 22-nm spaser (left inset) and GNRs (right inset).

A nanolaser known as the spaser can serve as a super-bright, water-soluble, biocompatible probe capable of finding metastasized cancer cells in the blood stream and then killing these cells, according to a new research study...

Electron density distribution of the frontier orbital of a TMTTF molecule. Electrons of the constituent atoms of the molecule can be considered as either core electrons, which have no interactions with the surroundings, or electrons of frontier orbitals, which determine many physical properties of the molecule. We succeeded in visualizing the frontier molecular orbital distribution of a TMTTF by precise structural analysis using a core differential Fourier synthesis (CDFS) method. Credit: Shunsuke Kitou

Researchers probe a mysterious phase transition in an organic molecular conductor using synchrotron X-ray radiation. We normally associate conduction of electricity with metals. However, some of the high measured conductivities are found in certain organic molecular crystals...

A research team led by Professor Kyung-In Jang of Robotics Engineering collects, analyzes, and diagnoses bio-signals wirelessly transmitted to mobile application from the soft electronic skin. Credit: DGIST

A soft, stick-on patch collects, analyzes and wirelessly transmits a variety of health metrics from the body to a smartphone. A new, electronic skin microsystem tracks heart rate, respiration, muscle movement and other health data, and wirelessly transmits it to a smartphone. The electronic skin offers several improvements over existing trackers, including greater flexibility, smaller size, and the ability to stick the self-adhesive patch – which is a very soft silicone about 4cm (1.5 inches) in diameter – just about anywhere on the body..

The electronic skin contains about 50 component...

Conceptual image of the Mars 2020 rover. Credit: NASA/JPL-Caltech

NASA’s Mars 2020 mission, which will look for signs of past life on Mars, will use smart methods originally developed to find the oldest life on Earth, according the mission’s Deputy Project Scientist, Dr Ken Williford. The 2020 mission builds on the successes of prior rovers, to make coordinated measurements that could detect signs of ancient life – or biosignatures – in their original spatial context. These techniques, known as “spatially resolved biosignature analysis” derive from geochemical analysis of early life on Earth.

Speaking at the Goldschmidt conference in Paris where he is presenting the methods to be adopted, Dr Ken Williford (who is also Director of the Jet Propulsion Laboratory’s Astrobiogeochemistry Laborat...