Category Archives: Technology

A dielectric is a nonconductor of electric charge in which an applied electric field causes a displacement of charge but not a flow of charge. Light propagation through a dielectric medium is determined by the spatial distribution of the material. […]

When light encounters molecules, the predominant mode of scattering is elastic scattering (Rayleigh). This scattering is responsible for the blue colour of the sky, for example. It is also possible for the incident photons to interact with the molecules in […]

Topological insulators are electronic materials that have a bulk band gap like an ordinary insulator but have conducting states on their edge or surface. The conducting surface is not what makes topological insulators unique, but the fact that it is […]

A recurrent problem with pain is the absence of therapeutic strategies to selectively block the nociceptors (neurons responsible to detect painful stimuli) that need to be targeted for a particular indication. Things get even worse if we take into account […]

There is a variable that is relevant for such seemingly different fields as outer space exploration , nanotechnology , fusion research , or medicine. And that is electronic stopping, its precise knowledge important for the understanding of space weathering, ion […]

There are plenty of examples of drugs that have been repurposed in recent years. For instance, thalidomide, the initially prescribed medication for headache in pregnant women which led to countless numbers of babies born with body malformations during the […]

According to how the electronic band theory is usually explained, solids can be classified as insulators, semiconductors, or metals. But, actually, there is another kind of solid between semiconductors and metals, the semimetals. In insulators and semiconductors the filled […]

In 1882, Heinrich Hertz devoted himself to the study of electromagnetism, including the recent and still generally unappreciated work of Maxwell. Two years later he began his famous series of experiments with electromagnetic waves. During the course of this work, […]

The combination of catalysis and bioorthogonality promises have an impact on drug discovery and bioimaging. Bioorthogonality, a term coined by Carolyn R. Bertozzi in 2003, refers to any chemical reaction that can occur inside of living systems without interfering with […]

Interior of a human blood vessel. Something looks wrong, very wrong. Bacteria have entered the circulation, and the immunological system is reacting. All the alarms are on fire, while an army of white blood cells comes by, getting ready to […]