| Autor: |
Davide Caprini, Francesco Battista, Paweł Zajdel, Giovanni Di Muccio, Carlo Guardiani, Benjamin Trump, Marcus Carter, Andrey A. Yakovenko, Eder Amayuelas, Luis Bartolomé, Simone Meloni, Yaroslav Grosu, Carlo Massimo Casciola, Alberto Giacomello |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2041-1723 |
| DOI: |
10.1038/s41467-024-49136-w |
| Popis: |
Abstract Although coveted in applications, few materials expand when subject to compression or contract under decompression, i.e., exhibit negative compressibility. A key step to achieve such counterintuitive behaviour is the destabilisations of (meta)stable equilibria of the constituents. Here, we propose a simple strategy to obtain negative compressibility exploiting capillary forces both to precompress the elastic material and to release such precompression by a threshold phenomenon – the reversible formation of a bubble in a hydrophobic flexible cavity. We demonstrate that the solid part of such metastable elastocapillary systems displays negative compressibility across different scales: hydrophobic microporous materials, proteins, and millimetre-sized laminae. This concept is applicable to fields such as porous materials, biomolecules, sensors and may be easily extended to create unexpected material susceptibilities. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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