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Water Dispersive Suprastructures: An Organizational Impact on Nanomechanical Properties
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, Stockholm, SE‐100 44 Sweden.ORCID iD: 0000-0001-6877-9282
Key Laboratory of Colloid and Interface Chemistry of MOE School of Chemistry and Chemical Engineering, Shandong University, Shandong, China.
KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry, Division of Surface and Corrosion Science, Drottning Kristinas väg 51, Stockholm, SE‐100 44 Sweden. RISE Research Institutes of Sweden, Division of Bioscience and Materials, Box 5607, Stockholm, SE 114 86 Sweden.
Sorbonne Université, Chemistry Department, 4 Place Jussieu, Paris, 75005 France.
2021 (English)In: Advanced Materials Interfaces, ISSN 2196-7350, Vol. 8, no 3, article id 2001687Article in journal (Refereed) Published
Abstract [en]

Water dispersive 2D and 3D suprastructures offer a large number of potential applications in energy release, biomedicine and other fields. The nanomechanical properties of two suprastructures of self‐assembled 9.6 nm Fe3O4 hydrophobic nanocrystals dispersed in water are elucidated by using atomic force microscopy. These suprastructures are either a shell consisting of a few layers of nanocrystals or spherical self‐assemblies of nanocrystals in fcc superlattices called colloidosomes and supraballs, respectively. The major difference in the preparation of these suprastructure is based on the presence or not of octadecene molecules. It is recently demonstrated that these structures behave as nanoheaters and remain self‐assembled after internalization in cancer cells. The observed differences between these suprastructures in terms of cell sensing are suggested to be related to their mechanical properties, which emphasize the importance of better understanding the nanomechanics of such suprastructures. In this study the nanomechanical properties of these suprastructures are shown to be load‐depended in aqueous medium. Colloidosomes demonstrate higher flexibility and deformability than the supraballs. These findings provide essential knowledge for understanding differences in cell internalization and implementation in biomedicine. The differences in nanomechanical properties between these types of suprastructures are mainly due to their structures (hollow core–shell or fcc supracrystals).

Place, publisher, year, edition, pages
John Wiley & Sons, 2021. Vol. 8, no 3, article id 2001687
Keywords [en]
atomic force microscopy, nanocrystals, nanomechanical properties, suprastructures
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Other Physics Topics
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Experimental Physics
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URN: urn:nbn:se:ltu:diva-82200DOI: 10.1002/admi.202001687ISI: 000598664500001Scopus ID: 2-s2.0-85097538239OAI: oai:DiVA.org:ltu-82200DiVA, id: diva2:1515082
Note

Validerad;2022;Nivå 2;2022-01-24 (johcin)

Available from: 2021-01-08 Created: 2021-01-08 Last updated: 2022-01-24Bibliographically approved

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Dobryden, Illia

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