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59 Current news of ecole-polytechnique-federale-de-lausanne

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Adding a polymer stabilizes collapsing metal-organic frameworks

22-Jul-2019

Metal-organic frameworks (MOFs) are a special class of sponge-like materials with nano-sized pores. The nanopores lead to record-breaking internal surface areas, up to 7800 m2 in a single gram. This feature makes MOFs extremely versatile materials with multiple uses, such as separating ...

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Researchers discover semiconducting nanotubes that form spontaneously

10-Jul-2019

If scientists could find a way to control the process for making semiconductor components on a nanometric scale, they could give those components unique electronic and optical properties - opening the door to a host of useful applications. Researchers at the Laboratory of Microsystems, in EPFL's ...

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New chemical tools to modify and study biomolecules

08-Jul-2019

Understanding the structure and metabolism of cells and living organisms is essential for the development of new drugs and diagnostics. The availability of chemical tools that allow scientists to edit biomolecules, like proteins, with atom-level resolution have greatly contributed to the progress ...

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New biologically derived metal-organic framework mimics DNA

10-Apr-2019

The field of materials science has become abuzz with "metal-organic frameworks" (MOFs), versatile compounds made up of metal ions connected to organic ligands, thus forming one-, two-, or three-dimensional structures. There is now an ever-growing list of applications for MOF, including separating ...

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The holy grail of nanowire production

22-Feb-2019

Nanowires have the potential to revolutionize the technology around us. Measuring just 5-100 nanometers in diameter (a nanometer is a millionth of a millimeter), these tiny, needle-shaped crystalline structures can alter how electricity or light passes through them. They can emit, concentrate and ...

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Intuition and failure as valuable ingredients in chemical research

Methodology to collect lessons learned from partially failed trials and incorrect hypotheses

07-Feb-2019

Researchers from the lab of NCCR MARVEL's deputy director Berend Smit and colleagues have developed a methodology for collecting the lessons learned from partially failed trials and incorrect hypotheses -- the experiments that didn't work. The researchers used machine learning to capture chemical ...

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Chirality in 'real-time'

Circular dichroism in the deep ultraviolet

11-Jan-2019

In nature, certain molecules with the same chemical composition, can exist in two different shapes that are mirrors images of each other, much like our hands. This property is known as "chirality" and molecules with different chirality are called enantiomers. Enantiomers can exhibit entirely ...

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Nitrogen fixation in ambient conditions

13-Nov-2018

Abundant in nature (78% of the air we breathe), nitrogen is rarely used in the industrial production of chemicals, with the most important process being the synthesis of ammonia, which is in turn used for the preparation of agricultural fertilizers. Using nitrogen as a raw material ("feedstock") ...

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A computational method for designing a new type of 2D carbons

16-Aug-2018

Zeolites are porous minerals that occur both naturally but also are being synthesized artificially. Because of their stability and durability, they are used in industrial water purification, catalysis, adsorption, and even in blood-clotting powders (e.g. QuickClot used by the US military). A ...

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A step closer to single-atom data storage

13-Jul-2018

Despite the rise of solid-state drives, magnetic storage devices such as conventional hard drives and magnetic tapes are still very common. But as our data-storage needs are increasing at a rate of almost 15 million gigabytes per day, scientists are turning to alternative storage devices. One of ...

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