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Nanosheet-Stabilized Emulsions: Near-Minimum Loading and Surface Energy Design of Conductive Networks
[Image: see text] Here, we develop a framework for assembly, understanding, and application of functional emulsions stabilized by few-layer pristine two-dimensional (2D) nanosheets. Liquid-exfoliated graphene and MoS(2) are demonstrated to stabilize emulsions at ultralow nanosheet volume fractions,...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9007533/ https://www.ncbi.nlm.nih.gov/pubmed/35107970 http://dx.doi.org/10.1021/acsnano.1c06519 |
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author | Ogilvie, Sean P. Large, Matthew J. O’Mara, Marcus A. Sehnal, Anne C. Amorim Graf, Aline Lynch, Peter J. Cass, Adam J. Salvage, Jonathan P. Alfonso, Marco Poulin, Philippe King, Alice A. K. Dalton, Alan B. |
author_facet | Ogilvie, Sean P. Large, Matthew J. O’Mara, Marcus A. Sehnal, Anne C. Amorim Graf, Aline Lynch, Peter J. Cass, Adam J. Salvage, Jonathan P. Alfonso, Marco Poulin, Philippe King, Alice A. K. Dalton, Alan B. |
author_sort | Ogilvie, Sean P. |
collection | PubMed |
description | [Image: see text] Here, we develop a framework for assembly, understanding, and application of functional emulsions stabilized by few-layer pristine two-dimensional (2D) nanosheets. Liquid-exfoliated graphene and MoS(2) are demonstrated to stabilize emulsions at ultralow nanosheet volume fractions, approaching the minimum loading achievable with 2D materials. These nanosheet-stabilized emulsions allow controlled droplet deposition free from the coffee ring effect to facilitate single-droplet devices from minute quantities of material or assembly into large-area films with high network conductivity. To broaden the range of compositions and subsequent applications, an understanding of emulsion stability and orientation in terms of surface energy of the three phases is developed. Importantly, this model facilitates determination of the surface energies of the nanosheets themselves and identifies strategies based on surface tension and pH to allow design of emulsion structures. Finally, this approach is used to prepare conductive silicone emulsion composites with a record-low loading level and excellent electromechanical sensitivity. The versatility of these nanosheet-stabilized emulsions illustrates their potential for low-loading composites, thin-film formation and surface energy determination, and the design of functional structures for a range of segregated network applications. |
format | Online Article Text |
id | pubmed-9007533 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-90075332022-04-14 Nanosheet-Stabilized Emulsions: Near-Minimum Loading and Surface Energy Design of Conductive Networks Ogilvie, Sean P. Large, Matthew J. O’Mara, Marcus A. Sehnal, Anne C. Amorim Graf, Aline Lynch, Peter J. Cass, Adam J. Salvage, Jonathan P. Alfonso, Marco Poulin, Philippe King, Alice A. K. Dalton, Alan B. ACS Nano [Image: see text] Here, we develop a framework for assembly, understanding, and application of functional emulsions stabilized by few-layer pristine two-dimensional (2D) nanosheets. Liquid-exfoliated graphene and MoS(2) are demonstrated to stabilize emulsions at ultralow nanosheet volume fractions, approaching the minimum loading achievable with 2D materials. These nanosheet-stabilized emulsions allow controlled droplet deposition free from the coffee ring effect to facilitate single-droplet devices from minute quantities of material or assembly into large-area films with high network conductivity. To broaden the range of compositions and subsequent applications, an understanding of emulsion stability and orientation in terms of surface energy of the three phases is developed. Importantly, this model facilitates determination of the surface energies of the nanosheets themselves and identifies strategies based on surface tension and pH to allow design of emulsion structures. Finally, this approach is used to prepare conductive silicone emulsion composites with a record-low loading level and excellent electromechanical sensitivity. The versatility of these nanosheet-stabilized emulsions illustrates their potential for low-loading composites, thin-film formation and surface energy determination, and the design of functional structures for a range of segregated network applications. American Chemical Society 2022-02-02 2022-02-22 /pmc/articles/PMC9007533/ /pubmed/35107970 http://dx.doi.org/10.1021/acsnano.1c06519 Text en © 2022 American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Ogilvie, Sean P. Large, Matthew J. O’Mara, Marcus A. Sehnal, Anne C. Amorim Graf, Aline Lynch, Peter J. Cass, Adam J. Salvage, Jonathan P. Alfonso, Marco Poulin, Philippe King, Alice A. K. Dalton, Alan B. Nanosheet-Stabilized Emulsions: Near-Minimum Loading and Surface Energy Design of Conductive Networks |
title | Nanosheet-Stabilized
Emulsions: Near-Minimum Loading
and Surface Energy Design of Conductive Networks |
title_full | Nanosheet-Stabilized
Emulsions: Near-Minimum Loading
and Surface Energy Design of Conductive Networks |
title_fullStr | Nanosheet-Stabilized
Emulsions: Near-Minimum Loading
and Surface Energy Design of Conductive Networks |
title_full_unstemmed | Nanosheet-Stabilized
Emulsions: Near-Minimum Loading
and Surface Energy Design of Conductive Networks |
title_short | Nanosheet-Stabilized
Emulsions: Near-Minimum Loading
and Surface Energy Design of Conductive Networks |
title_sort | nanosheet-stabilized
emulsions: near-minimum loading
and surface energy design of conductive networks |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9007533/ https://www.ncbi.nlm.nih.gov/pubmed/35107970 http://dx.doi.org/10.1021/acsnano.1c06519 |
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