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A team from the Langevin Institute (ESPCI,CNRS, Inserm) led by Mickaël Tanter, Inserm research director at ESPCI, has just passed a crucial step towards super high resolution ultrasound medical imaging. Scientists managed to report on the non invasive in vivo rat brain vascular activity, with a much better resolution than any other existing technique. Far from common ultrasound imaging, the technique was rather inspired by ultra high optical resolution (FPALM) which was awarded with the Nobel Prize for Chemistry in 2014. Their work was published in the prestigious journal Nature and constitutes an important breakthrough for biomedical imaging. It is the first microscopic imaging technique allowing to see deep into living tissues. Potential applications are numerous, from the early detection of cancer tumors or other cardiovascular and neurologic pathologies.

Research

Contrary to what one might think, sugar promotes sleepiness and not hyperactivity. There may be a good reason to sleep after a high-sugar meal. That is the conclusion of a new study published by neuroscientists at ESPCI ParisTech in collaboration with the Lyon Neuroscience Research Center. This study demonstrates that glucose promotes sleep by activating the neurons responsible for sleep onset and maintenance. These neurons integrate energetic signals such as ambient glucose directly to regulate vigilance states accordingly. This work was published in the Journal of Neuroscience.

Research

What does happen when one blows in a soda can? An almost pure tone is generated, a signature that it resonantly interacts with audible sound. At a different scale, a similar phenomenon occurs when a light wave interacts with a material. The interaction depends on two criteria: the chemical composition of the material, and its atomic structure.

Researchers from the Institut Langevin (ESPCI ParisTech, CNRS) have developed an original experiment based on honeycomb arrangements of soda cans to create an acoustic superlens. Their work was published in the renowned Nature journal on september 4th, paving the way for new research in the field of composite materials.

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Arkema, sponsor of the ESPCI’s 134th promotion

The french leader group in chemistry Arkema succeeds Withings, French flagsphip of connected objects for Health, as the sponsor of the new promotion.

Gellified foams for decontamination processes

Two research teams from ESPCI and Saint-Gobain developed a fabrication process of foams made of a highly viscous polymer gel. The so formed foams have much better properties than the standard surfactant ones: they are ultra-stables for several weeks, and once in touch with a liquid deposited on a surface, they absorb it very quicky without destabilizing.


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