Forth, J;
Mariano, A;
Chai, Y;
Toor, A;
Hasnain, J;
Jiang, Y;
Feng, W;
... Russell, TP; + view all
(2021)
The Buckling Spectra of Nanoparticle Surfactant Assemblies.
Nano Letters
, 21
(17)
pp. 7116-7122.
10.1021/acs.nanolett.1c01454.
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Abstract
Fine control over the mechanical properties of thin sheets underpins transcytosis, cell shape, and morphogenesis. Applying these principles to artificial, liquid-based systems has led to reconfigurable materials for soft robotics, actuation, and chemical synthesis. However, progress is limited by a lack of synthetic two-dimensional membranes that exhibit tunable mechanical properties over a comparable range to that seen in nature. Here, we show that the bending modulus, B, of thin assemblies of nanoparticle surfactants (NPSs) at the oil–water interface can be varied continuously from sub-kBT to 106kBT, by varying the ligands and particles that comprise the NPS. We find extensive departure from continuum behavior, including enormous mechanical anisotropy and a power law relation between B and the buckling spectrum width. Our findings provide a platform for shape-changing liquid devices and motivate new theories for the description of thin-film wrinkling.
| Type: | Article |
|---|---|
| Title: | The Buckling Spectra of Nanoparticle Surfactant Assemblies |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.nanolett.1c01454 |
| Publisher version: | http://doi.org/10.1021/acs.nanolett.1c01454 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Science & Technology, Physical Sciences, Technology, Chemistry, Multidisciplinary, Chemistry, Physical, Nanoscience & Nanotechnology, Materials Science, Multidisciplinary, Physics, Applied, Physics, Condensed Matter, Chemistry, Science & Technology - Other Topics, Materials Science, Physics, Nanoparticles, wrinkling, self-assembly, interfaces, membranes, MECHANICAL-PROPERTIES, MEMBRANES, EMULSIONS, BEHAVIOR |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10137018 |
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