Aqueous Assembly of Oxide and Fluoride Nanoparticles into 3D Microassemblies

We demonstrate rapid [∼mm3/(h·L)] organic ligand-free self-assembly of three-dimensional, >50 μm single-domain microassemblies containing up to 107 individual aligned nanoparticles through a scalable aqueous process. Organization and alignment of aqueous solution-dispersed nanoparticles are induc...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 34(2018), 27 vom: 10. Juli, Seite 8075-8080
1. Verfasser: Cui, Shanying (VerfasserIn)
Weitere Verfasser: Guan, Xin N, Ghantous, Eliana, Vajo, John J, Lucas, Matthew, Hsiao, Ming-Siao, Drummy, Lawrence F, Collins, Joshua, Juhl, Abigail, Roper, Christopher S, Gross, Adam F
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S.
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520 |a We demonstrate rapid [∼mm3/(h·L)] organic ligand-free self-assembly of three-dimensional, >50 μm single-domain microassemblies containing up to 107 individual aligned nanoparticles through a scalable aqueous process. Organization and alignment of aqueous solution-dispersed nanoparticles are induced by decreasing their pH-dependent surface charge without organic ligands, which could be temperature-sensitive or infrared light absorbing. This process is exhibited by transforming both dispersed iron oxide hydroxide nanorods and lithium yttrium fluoride nanoparticles into high packing density microassemblies. The approach is generalizable to nanomaterials with pH-dependent surface charge (e.g., oxides, fluorides, and sulfides) for applications requiring long-range alignment of nanostructures as well as high packing density 
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650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
700 1 |a Guan, Xin N  |e verfasserin  |4 aut 
700 1 |a Ghantous, Eliana  |e verfasserin  |4 aut 
700 1 |a Vajo, John J  |e verfasserin  |4 aut 
700 1 |a Lucas, Matthew  |e verfasserin  |4 aut 
700 1 |a Hsiao, Ming-Siao  |e verfasserin  |4 aut 
700 1 |a Drummy, Lawrence F  |e verfasserin  |4 aut 
700 1 |a Collins, Joshua  |e verfasserin  |4 aut 
700 1 |a Juhl, Abigail  |e verfasserin  |4 aut 
700 1 |a Roper, Christopher S  |e verfasserin  |4 aut 
700 1 |a Gross, Adam F  |e verfasserin  |4 aut 
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