Scientists report on a new method of rapidly identifying different molecular species under a microscope. Their technique of coherent Raman spectro-imaging with two laser frequency combs takes a big step towards the holy grail of real-time label-free biomolecular imaging.
Cell biologists and chemists from the University of Zurich reveal how viral DNA traffics in human cells. They have developed a new method to generate virus particles containing labeled viral DNA genomes. This allowed them to visualize, for the first time, single viral genomes in the cytoplasm and the nucleus by using fluorescence microscopy in regular or superresolution mode. The new findings enhance our understanding of how viral disease occurs, and how cells respond to infections.
Researchers have uncovered a novel effect that, in principle, offers a means of stabilizing quantum systems against decoherence. The discovery could represent a major step forward for quantum information processing.
Scientists from Stanford and Illinois have created a heat-resistant thermal emitter that could significantly improve solar cell efficiency. The novel component is designed to convert heat from the sun into infrared light that can be absorbed by solar cells to make electricity - a technology known as thermophotovoltaics.
The process can be carried out under any conditions, whatever the characteristics of the medium. This new click reaction can be used to connect two components (molecules, proteins, nanoparticles, etc.) in biological media as complex as human blood.
A team of MIT engineers has developed a way to detect blood clots using a simple urine test. The noninvasive diagnostic relies on nanoparticles that detect the presence of thrombin, a key blood-clotting factor.
Comparable to nanoscale Navy Seals, Cornell scientists have merged tiny gold and iron oxide particles to work as a team, then added antibody guides to steer the team through the bloodstream toward colorectal cancer cells. And in a nanosecond, the alloyed allies then kill the bad guys - cancer cells - with absorbed infrared heat.