Nanoparticles - 10 News by Deutsches Elektronen-Synchrotron DESY

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Nanoparticles - 10 News by Deutsches Elektronen-Synchrotron DESY

Tip: You can further refine your news selection by departments and industries.

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Researchers can now accurately measure the emergence and damping of a plasmonic field

This is crucial for renewable energy and other technologies

13-May-2024 - An international research team led by Universität Hamburg, DESY, and Stanford University has developed a new approach to characterize the electric field of arbitrary plasmonic samples, like e.g. gold nanoparticles. Plasmonic materials are of particular interest due to their extraordinary ...

nanoparticles gold nanoparticles energy conversion
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Molecular movie shows displaced electrons drive gold nanoparticle oscillations

Result defies established models of nanoparticle behaviour

03-Aug-2023 - Photocatalysis, sensors, solar cells: nanoparticles that are excited by light promise a variety of applications, if the processes behind their behaviour can be controlled. One such process is a type of collective electron motions. These movements lead to energy exchange in the nanoparticle that ...

nanoparticles electron oscillation plasmons
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Rare insights into growing nanoparticles

“This is a key factor for the design of highly active catalysts and sensors with high sensitivity”

02-Sep-2022 - How exactly do nanoparticles form in solution? Researchers from Universität Hamburg and DESY have now been able to observe the growth of nanoparticles in solution in real time. In the journal Nature Communications, they report on their observations using the method of X-ray ptychography, which ...

nanoparticles nanomaterials ptychography
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Unprecedented dynamic-range resolution useful for examining impact of environmental pollutants on cells and tissues

Full-body synchrotron imaging of roundworms reveals nanoparticle accumulation

02-Jun-2022 - Scientists working at DESY’s PETRA III light source have been able to generate the first synchrotron-based X-ray map of the whole body of an organism at such a high resolution that contaminants could be detected at the individual cell level. The research team was able to identify cerium ...

nanoparticles Caenorhabditis elegans cells
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Unprecedented view of a single catalyst nanoparticle at work

X-rays reveal compositional changes on active surface under reaction conditions

05-Oct-2021 - A DESY-led research team has been using high-intensity X-rays to observe a single catalyst nanoparticle at work. The experiment has revealed for the first time how the chemical composition of the surface of an individual nanoparticle changes under reaction conditions, making it more active. The ...

nanoparticles catalyst materials catalysts
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Unexpected twist of catalytic nanoparticles

Precise orientation affects shape, size and behaviour

16-Aug-2021 - Nanoparticles that make up catalysts can arrange themselves in slightly different ways, and behave significantly differently as a result. This is revealed by an X-ray study of palladium nanoparticles carried out at DESY Nanolab and PETRA III. The study has been published in the journal ACS Nano ...

nanoparticles palladium nanoparticles catalysts
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Astonishing diversity: Semiconductor nanoparticles form numerous structures

X-ray study reveals how lead sulphide particles self-organise in real time

13-Aug-2021 - The structure adopted by lead sulphide nanoparticles changes surprisingly often as they assemble to form ordered superlattices. This is revealed by an experimental study that has been conducted at DESY’s X-ray source PETRA III. A team led by the DESY scientists Irina Lokteva and Felix Lehmkühler, ...

nanoparticles crystal lattices lead sulfide
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Edges and corners increase efficiency of catalytic converters

X-rays reveal oxide islands on noble metal nanoparticles

28-Mar-2018 - Catalytic converters for cleaning exhaust emissions are more efficient when they use nanoparticles with many edges. This is one of the findings of a study carried out at DESY’s X-ray source PETRA III. A team of scientists from the DESY NanoLab watched live as noxious carbon monoxide (CO) was ...

nanoparticles boundary surfaces catalysis
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Scientists film exploding nanoparticles

Imaging nanoscale dynamics with unparalleled detail and speed

08-Feb-2016 - Using a super X-ray microscope, an international research team has “filmed” the explosion of single nanoparticles. The team led by Tais Gorkhover from Technische Universität Berlin, currently working at the SLAC National Accelerator Laboratory in the U.S. as a fellow of the Volkswagen Foundation, ...

nanoparticles nanotechnology X-ray lasers
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X-ray pulses uncover free nanoparticles for the first time in 3-D

'Super microscope' reveals unexpected variety of shapes

10-Feb-2015 - For the first time, a German-American research team has determined the three-dimensional shape of free-flying silver nanoparticles, using DESY's X-ray laser FLASH. The tiny particles, hundreds of times smaller than the width of a human hair, were found to exhibit an unexpected variety of shapes, ...

nanoparticles X-ray lasers
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