news from the lab 2015

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Results 1 - 6 of 6.


Life Sciences - Chemistry - 20.12.2015
A multitool for cells
A multitool for cells
Cells have an infallible sense of smell that tells them which direction to grow in to move closer to the source of a scent. ETH researchers have now learned how this sense of smell works. A frequent problem faced by cells is that they are surrounded by a promising cloud of scent and must determine the direction of its source.

Physics - Chemistry - 23.11.2015
Using light-force to study single molecules
Using light-force to study single molecules
23.11.15 - Scientists at EPFL show how a light-induced force can amplify the sensitivity and resolution of a technique used to study single molecules. When it comes to studying single molecules, scientists use a powerful technique called "surface-enhanced Raman scattering" (SERS). An extremely sensitive tool, SERS detects the vibrations within the atoms of the illuminated molecule as a change in light color.

Astronomy / Space Science - Chemistry - 28.10.2015
Surprising Discovery of Oxygen in Comet
Surprising Discovery of Oxygen in Comet
The biggest surprise so far in the chemical analysis of Comet Churyumov-Gerasimenko's atmosphere is the high proportion of oxygen molecules. While such molecules are common in the earth's atmosphere, their presence on comets had originally been ruled out. Early on in the mission of the ROSINA mass spectrometer, in September of last year, researchers from the Center for Space and Habitability (CSH) at the University of Bern made an unexpected discovery when analyzing the comet's gases: Between the expected peak values of sulfur and methanol, clear traces of oxygen (O2) molecules were detected.

Physics - Chemistry - 12.10.2015
A resonator for electrons
A resonator for electrons
Resonators are an important tool in physics. The curved mirrors inside the resonators usually focus light waves that act, for instance, on atoms. Physicists at ETH Zurich have now managed to build a resonator for electrons and to direct the standing waves thus created onto an artificial atom. More than two thousand years ago the Greek inventor and philosopher Archimedes already came up with the idea of using a curved mirror to reflect light in such a way as to focus it into a point - legend has it that he used this technique to set fire to the ships of the Roman enemies.

Chemistry - Physics - 23.09.2015
Water pathways make fuel cells more efficient
Water pathways make fuel cells more efficient
Researchers have developed a coating technique in the laboratory conditions that could raise the efficiency of fuel cells.

Physics - Chemistry - 12.08.2015
The BASE experiment at CERN compares protons and antiprotons with high precision
The BASE experiment at CERN compares protons and antiprotons with high precision
The Baryon Antibaryon Symmetry Experiment (BASE ) at CERN 2 's Antiproton Decelerator (AD), reports the most precise comparison of the charge-to-mass ratio of the proton to that of its antimatter equivalent, the antiproton. The charge-to-mass ratio - an important property of particles - can be measured by observing the oscillation of a particle in a magnetic field.