LUXEMBOURG INSTITUTE OF SCIENCE AND TECHNOLOGY (LIST)

A device and method for recording spectral information of charged particle beams, such as ion beams, or of light beams, at a high resolution. Specifically, a mass spectrometer having a focal plane detector. The device and method enable the recording of mass spectral data at both high mass resolving power and mass accuracy, during parallel acquisition of potentially the entire spectrum of a sample beam.

Disulfide-containing benzoxazine monomers of formula I Also a process for synthesizing a disulfide-containing benzoxazine monomer of formula I comprises the following steps consisting of providing a mixture comprising an amino disulfide compound:H 2 N—R—NH 2 , wherein R is as defined for the monomer of formula I, an aldehyde derivative; phenolic derivatives, stirring the mixture under a temperature of from 50° C. to 130° C. for 1 h to 48 h, for obtaining the monomer of formula I; wherein the respective stoichiometry of the amino disulfide compound:aldehyde derivative:phenolic derivatives is 1:4:x 1 +x 2 , with x 1 +x 2 =2 and 0<x 1 ;x 2 <2. Also a process for preparing a polybenzoxazine derivative vitrimer comprising a polymerization of the benzoxazine monomer at temperatures within the range of from 100° C. to 250° C. for 1 h to 24 h, for obtaining the polybenzoxazine derivatives vitrimer. Also polybenzoxazine derivative vitrimers, presenting at least one of the following characteristics of Tg values of from 0° C. to 250° C.; and relaxation temperature values, above the Tg values, of from 0° C. to 250° C.

A method for in-situ joint nanoscale three-dimensional imaging and chemical analysis of a sample. A single charged particle beam device is used for generating a sequence of two-dimensional nanoscale images of the sample, and for sputtering secondary ions from the sample, which are analysed using a secondary ion mass spectrometry device. The two-dimensional images are combined into a three-dimensional volume representation of the sample, the data of which is combined with the results of the chemical analysis.

A heat exchanger comprising at least two substrates made of electro-caloric and/or pyroelectric material and stacked one on the other so as to form between the at least two substrates and at least one channel for a fluid; at least two electrodes at two opposed ends of the at least two substrates; a housing enclosing the stack of the at least two substrates and the at least two electrodes, and provided with at least one fluid connecting port; wherein the housing is made of a heat shrinkable flexible tube that is shrunk onto the stack of the at least two electrodes and forming the at least one fluid connecting port.

A filament for an additive manufacturing application or a winding application. The filament including fibers embedded in a reactive matrix including a reactive blend of: a reactive thermoplastic matrix with a glycidyl methacrylate monomer and/or with a methacrylic acid monomer. The filament further including a sheath layer wrapping the matrix, the sheath layer being made of a thermoplastic material. A use of the filament for manufacturing an end product by an additive manufacturing process or by a winding technique. A method for manufacturing such a filament.

A quartz crystal microbalance (QCM) sensor is proposed. The QCM sensor comprises a piezoelectric substrate and at least two electrodes in contact with the substrate to induce shear deformations therein through the inverse piezoelectric effect. The substrate has a sensing surface, and, on that surface, a pattern of plasmonic nanoparticle accumulations protruding from the surface. Each accumulation of nanoparticles comprises a plurality of plasmonic nanoparticles arranged about a hump. Plasmonic hot spots are present between neighbouring accumulations of the pattern that are separated a distance that amounts to or to less than the average diameter of the accumulations of the pattern.

A method of extracting polysaccharides from alfalfa plants, the method comprising the followings steps: milling of the alfalfa plants; addition of a buffer solution to the milled alfalfa plants and separation of the milled plants, thus producing a polysaccharides-composed supernatant and a protein-composed pellet; and precipitation of the polysaccharides in the polysaccharides-composed supernatant; the alfalfa plants comprising alfalfa seeds; and the method comprising the following steps, prior to the milling step: soaking of the alfalfa plants in water so as to swell the alfalfa seeds; mesh filtration of the alfalfa plants comprising the swollen alfalfa seeds; and drying of the alfalfa plants comprising the swollen alfalfa seeds.

The present disclosure relates to an antimicrobial coating comprising one or more biosourced polycationic polymers and lignin nanoparticles dispersed into polyvinyl alcohol, remarkable in that said antimicrobial coating further comprises a dialdehyde or a boron-based compound.

A system and a method for purification and isotope analysis of water vapour. A multi-bed trap is used to remove organics, including ethanol and methanol, from the water vapour prior to analysing the water stable isotopes, without changing the initial isotope signature of the water sample. The multi-bed trap includes at least one hydrophobic graphitized black carbon sorbent and a hydrophobic carbon molecular sieve sorbent.

A detection apparatus and method for detecting charged particles. The device relies on a detection assembly comprising microchannel plates. The useful surface of the microchannel plate device is maximized in time through the use of beam deflection means upstream of the detection front.