Science
Photochromic Nanostructures; Tools to Detect, Tract Living Cells
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SiC Nanoparticles Applied to Modify Properties of Portland Cement
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New LED with luminescent proteins
This image shows rubber with red, green and blue luminescent proteins used to produce the BioLEDs.
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How copper makes organic light-emitting diodes more efficient: KIT researchers measure intersystem crossing directly in a thermally activated delayed fluorescence copper complex -- publication in Science Advances
Thanks to knowledge of their quantum mechanics, dyes can be customized for use in organic light-emitting diodes.
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How seashells get their strength: Study shows how calcium carbonate forms composites to make strong materials such as in shells and pearls
The results show that such clumps become incorporated via chemical interactions with atoms in the crystals, an unexpected mechanism based on previous understanding. By providing insight into the formation of natural minerals that are a composite of both soft and hard components, the work will help scientists develop new materials for a sustainable energy future, based on this principle.
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Tiny 'flasks' speed up chemical reactions: Self-assembling nanosphere clusters may improve everything from drug synthesis to drug delivery
Dr. Rafal Klajn of the Weizmann Institute's Organic Chemistry Department and his team were originally studying the light-induced self-assembly of nanoparticles. They were employing a method earlier developed by Klajn in which inorganic nanoparticles are coated in a single layer of organic molecules that change their configuration when exposed to light; these alter the properties of the nanoparticles such that they self-assemble into crystalline clusters. When spherical nanoparticles of gold or other materials self-assembled into a cluster, empty spaces formed between them, like those between oranges packed in a case. Klajn and his team members realized that the empty spaces sometimes trapped water molecules, which led them to suggest that they could also trap "guest" molecules of other materials and function as tiny flasks for chemical reactions. A cluster of a million nanoparticles would contain a million such nanoflasks.
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Scientists call for new tools to explore the world's microbiomes
Understanding microbiomes — human and otherwise — will require a suite of advanced new tools.
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Aluminum nanoparticles could improve electronic displays
A set of vivid red, green and blue pixels based on aluminum nanostructures are shown in a liquid crystal display (left: schematic, right: digital photograph).
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Nanowalls for smartphones
With a special mode of electrohydrodynamic ink-jet printing scientists can create a grid of ultra fine gold walls.
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Using nanoparticles to combat arteriosclerosis: Researchers at the University of Bonn have developed a method for cell replacement in diseased vessels
On the left are fluorescence-labeled cells with nanoparticles: The cellular nuclei are shown in blue, the fluorescence labeling is shown in green and the nanoparticles in the cells are identified by arrows. The middle photo shows a blood vessel populated with these cells (green). On the right is a detailed image of a vascular wall with the eNOS protein identified (red).
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Human Rights
Fostering a More Humane World: The 28th Eurasian Economic Summi
Conscience, Hope, and Action: Keys to Global Peace and Sustainability
Ringing FOWPAL’s Peace Bell for the World:Nobel Peace Prize Laureates’ Visions and Actions
Protecting the World’s Cultural Diversity for a Sustainable Future
Puppet Show I International Friendship Day 2020