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Universal linker-free assembly of core–satellite hetero-superstructures

Colloidal superstructures comprising hetero-building blocks often show unanticipated physical and chemical properties. Here, we present a universal assembly methodology to prepare hetero-superstructures. This straightforward methodology allows the assembly of building block materials varying from in...

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Autores principales: Hu, Yanfang, Li, Yonglong, Yu, Linfeng, Zhang, Yuying, Lai, Yuming, Zhang, Wei, Xie, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9580622/
https://www.ncbi.nlm.nih.gov/pubmed/36320924
http://dx.doi.org/10.1039/d2sc02843c
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author Hu, Yanfang
Li, Yonglong
Yu, Linfeng
Zhang, Yuying
Lai, Yuming
Zhang, Wei
Xie, Wei
author_facet Hu, Yanfang
Li, Yonglong
Yu, Linfeng
Zhang, Yuying
Lai, Yuming
Zhang, Wei
Xie, Wei
author_sort Hu, Yanfang
collection PubMed
description Colloidal superstructures comprising hetero-building blocks often show unanticipated physical and chemical properties. Here, we present a universal assembly methodology to prepare hetero-superstructures. This straightforward methodology allows the assembly of building block materials varying from inorganic nanoparticles to living cells to form superstructures. No molecular linker is required to bind the building blocks together and thus the products do not contain any unwanted adscititious material. The Fourier transform infrared spectra, high resolution transmission electron microscopic images and nanoparticle adhesion force measurement results reveal that the key to self-organization is stripping surface ligands by adding non-polar solvents or neutralizing surface charge by adding salts, which allow us to tune the balance between van der Waals attraction and electrostatic repulsion in the colloid so as to trigger the assembling process. As a proof-of-concept, the superior photocatalytic activity and single-particle surface-enhanced Raman scattering of the corresponding superstructures are demonstrated. Our methodology greatly extends the scope of building blocks for superstructure assembly and enables scalable construction of colloidal multifunctional materials.
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spelling pubmed-95806222022-10-31 Universal linker-free assembly of core–satellite hetero-superstructures Hu, Yanfang Li, Yonglong Yu, Linfeng Zhang, Yuying Lai, Yuming Zhang, Wei Xie, Wei Chem Sci Chemistry Colloidal superstructures comprising hetero-building blocks often show unanticipated physical and chemical properties. Here, we present a universal assembly methodology to prepare hetero-superstructures. This straightforward methodology allows the assembly of building block materials varying from inorganic nanoparticles to living cells to form superstructures. No molecular linker is required to bind the building blocks together and thus the products do not contain any unwanted adscititious material. The Fourier transform infrared spectra, high resolution transmission electron microscopic images and nanoparticle adhesion force measurement results reveal that the key to self-organization is stripping surface ligands by adding non-polar solvents or neutralizing surface charge by adding salts, which allow us to tune the balance between van der Waals attraction and electrostatic repulsion in the colloid so as to trigger the assembling process. As a proof-of-concept, the superior photocatalytic activity and single-particle surface-enhanced Raman scattering of the corresponding superstructures are demonstrated. Our methodology greatly extends the scope of building blocks for superstructure assembly and enables scalable construction of colloidal multifunctional materials. The Royal Society of Chemistry 2022-09-20 /pmc/articles/PMC9580622/ /pubmed/36320924 http://dx.doi.org/10.1039/d2sc02843c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Hu, Yanfang
Li, Yonglong
Yu, Linfeng
Zhang, Yuying
Lai, Yuming
Zhang, Wei
Xie, Wei
Universal linker-free assembly of core–satellite hetero-superstructures
title Universal linker-free assembly of core–satellite hetero-superstructures
title_full Universal linker-free assembly of core–satellite hetero-superstructures
title_fullStr Universal linker-free assembly of core–satellite hetero-superstructures
title_full_unstemmed Universal linker-free assembly of core–satellite hetero-superstructures
title_short Universal linker-free assembly of core–satellite hetero-superstructures
title_sort universal linker-free assembly of core–satellite hetero-superstructures
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9580622/
https://www.ncbi.nlm.nih.gov/pubmed/36320924
http://dx.doi.org/10.1039/d2sc02843c
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