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NSF grant kicks off Center for Adapting Flaws into Features

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United States , Rice University , University Of Illinois , Christy Landes , Sean Roberts , Dave Berkowitz , Martin Zanni , Olgak Wiess , Benjamin Levine , Jamesr Eiszner , Peter Rossky , Kenneths Pitzer Schlumberger , Charlesw Duncan Jr , Chemists At Rice University , Phasei Center , Natural Sciences , National Science Foundation , Jeff Fitlow Rice University , University Of Wisconsin , University Of Texas At Austin , Centers For Chemical Innovation Program , Stony Brook University , Chemistry Division , University Of Illinois At Urbana Champaign , Stanford University , Peter Rossky Rice University ,

New Discovery Could Help Fine-Tune Nanoparticle Alloys for Specific Uses

New Discovery Could Help Fine-Tune Nanoparticle Alloys for Specific Uses
Written by AZoNanoApr 23 2021
There s gold in them thar nanoparticles, and there used to be a lot of silver, too. But much of the silver has leached away, and researchers want to know how.
Gold-silver alloys are useful catalysts that degrade environmental pollutants, facilitate the production of plastics and chemicals and kill bacteria on surfaces, among other applications. In nanoparticle form, these alloys could be useful as optical sensors or to catalyze hydrogen evolution reactions.
But there s an issue: Silver doesn t always stay put.
A new study by scientists at Rice University and the University of Duisburg-Essen, Germany, reveals a two-step mechanism behind silver s dissipation, a discovery that could help industry fine-tune nanoparticle alloys for specific uses. ....

United States , Christy Landes , Robert Mantz , Seyyed Ali Hosseini Jebeli , Christoph Rehbock , Stephan Barcikowski , Alexander Al Zubeidi , Charlotte Flatebo , Frederic Stein , National Defense Science , Roberta Welch Foundation , National Science Foundation , American Chemical Society , University Of Duisburg , German Research Foundation , Army Research Office , Technical Chemistry Institute , Rice University , Stephan Link , Combat Capabilities Command , Army Research , Engineering Graduate Fellowship , ஒன்றுபட்டது மாநிலங்களில் , கிறிஸ்டி நிலங்கள் , ராபர்ட் மந்த்ஜ் , தேசிய பாதுகாப்பு அறிவியல் ,

Nanotechnology Now - Press Release: Silver ions hurry up, then wait as they disperse: Rice chemists show ions' staged release from gold-silver nanoparticles could be useful property

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Home > Press > Silver ions hurry up, then wait as they disperse: Rice chemists show ions staged release from gold-silver nanoparticles could be useful property
Chemists at Rice University and the University of Duisburg-Essen, Germany quantified the release of silver ions from gold-silver nanoparticle alloys. At top, transmission electron microscope images show the change in color as silver (in blue) leaches out of a nanoparticle over several hours, leaving gold atoms behind. The bottom hyperspectral images show how much a nanoparticle of silver and gold shrank over four hours as the silver leached away. (Credit: Rice University) ....

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Rice Scientists Make Hybrid Particles by Coupling Gold Nanoparticles with Soft Polymers

Rice Scientists Make Hybrid Particles by Coupling Gold Nanoparticles with Soft Polymers
Written by AZoNanoDec 23 2020
Bigger is not always better, but here s something that starts small and gets better as it gets bigger.
Just light it up and see.
A team led by Rice University chemists Christy Landes and Stephan Link, both associated with the Smalley-Curl Institute, have made hybrid particles that combine the unbeatable light-harvesting properties of plasmonic nanoparticles with the flexibility of catalytic polymer coatings.
Their work could help power long-pursued plasmonic applications in electronics, imaging, sensing and medicine.
Plasmons are the detectable ripples of energy created on the surface of some metals when excited by light or other input. ....

United States , Ludwigshafen Am Rhein , Rheinland Pfalz , Christy Landes , Yawei Liu , Peter Nordlander , Sean Collins , Minhan Lou , Rashad Baiyasi , Emily Searles , Benjamin Foerster , Yi Yu Cai , Charlotte Flatebo , Luca Bursi , Lawrence Tauzin , Emory University , National Defense Science , Roberta Welch Foundation , American Chemical Society , Energy Sciences , Curl Institute , Department Of Energy Office Science , Rice University , Interfacial Molecular Science Program , Stephan Link , Smalley Curl Institute ,

'Soft' Nanoparticles Give Plasmons New Potential

Rice scientists show how coated nanoantennas retain energy to potentially catalyze chemical reactions
Bigger is not always better, but here’s something that starts small and gets better as it gets bigger.
Just light it up and see.
A team led by Rice University chemists Christy Landes and Stephan Link, both associated with the Smalley-Curl Institute, have made hybrid particles that combine the unbeatable light-harvesting properties of plasmonic nanoparticles with the flexibility of catalytic polymer coatings. Their work could help power long-pursued plasmonic applications in electronics, imaging, sensing and medicine.
Plasmons are the detectable ripples of energy created on the surface of some metals when excited by light or other input. Nanoantennas are microscopic bits of these metals, like gold, silver and aluminum. Because they are sensitive to specific inputs depending on their size, shape and type, they are tunable and therefore useful as sensors, bioimaging ....

United States , Ludwigshafen Am Rhein , Rheinland Pfalz , Christy Landes , Yawei Liu , Peter Nordlander , Sean Collins , Minhan Lou , Rashad Baiyasi , Emily Searles , Benjamin Foerster , Yi Yu Cai , Charlotte Flatebo , Luca Bursi , Lawrence Tauzin , Emory University , National Defense Science , Roberta Welch Foundation , American Chemical Society , Energy Sciences , Curl Institute , Department Of Energy Office Science , Rice University , Interfacial Molecular Science Program , Stephan Link , Smalley Curl Institute ,