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Following in Real T...
Following in Real Time the Two-Step Assembly of Nanoparticles into Mesocrystals in Levitating Drops
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- Agthe, Michael (author)
- Stockholm University,Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Plivelic, Tomás S. (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Labrador, Ana (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Bergström, Lennart (author)
- Stockholm University,Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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- Salazar-Alvarez, German (author)
- Stockholm University,Stockholms universitet,Institutionen för material- och miljökemi (MMK)
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(creator_code:org_t)
- 2016-10-31
- 2016
- English.
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In: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 16:11, s. 6838-6843
- Related links:
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http://dx.doi.org/10...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://lup.lub.lu.s...
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Abstract
Subject headings
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- Mesocrystals composed of crystallographically aligned nanocrystals are present in biominerals and assembled materials which show strongly directional properties of importance for mechanical protection and functional devices. Mesocrystals are commonly formed by complex biomineralization processes and can also be generated by assembly of anisotropic nanocrystals. Here, we follow the evaporation-induced assembly of maghemite nanocubes into mesocrystals in real time in levitating drops. Analysis of time-resolved small-angle X-ray scattering data and ex situ scanning electron microscopy together with interparticle potential calculations show that the substrate-free, particle-mediated crystallization process proceeds in two stages involving the formation and rapid transformation of a dense, structurally disordered phase into ordered mesocrystals. Controlling and tailoring the particle-mediated formation of mesocrystals could be utilized to assemble designed nanoparticles into new materials with unique functions.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Mesocrystal
- anisotropic nanoparticles
- SAXS
- two-step crystallization
- acoustic levitation
- Materials Chemistry
- materialkemi
- acoustic levitation
- anisotropic nanoparticles
- Mesocrystal
- SAXS
- two-step crystallization
Publication and Content Type
- ref (subject category)
- art (subject category)
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