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| Autori principali: | , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2310.07580 |
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| _version_ | 1866929367368597504 |
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| author | Caprini, Davide Battista, Francesco Zajdel, Pawel Di Muccio, Giovanni Guardiani, Carlo Trump, Benjamin Carter, Marcus Yakovenko, Andrey A. Amayuelas, Eder Bartolomé, Luis Meloni, Simone Grosu, Yaroslav Casciola, Carlo Massimo Giacomello, Alberto |
| author_facet | Caprini, Davide Battista, Francesco Zajdel, Pawel Di Muccio, Giovanni Guardiani, Carlo Trump, Benjamin Carter, Marcus Yakovenko, Andrey A. Amayuelas, Eder Bartolomé, Luis Meloni, Simone Grosu, Yaroslav Casciola, Carlo Massimo Giacomello, Alberto |
| contents | Although coveted in applications, few materials expand when subject to compression or contract under decompression, i.e., exhibit the negative compressibility phenomenon. 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 lyophobic 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_07580 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Bubbles enable volumetric negative compressibility in metastable elastocapillary systems Caprini, Davide Battista, Francesco Zajdel, Pawel Di Muccio, Giovanni Guardiani, Carlo Trump, Benjamin Carter, Marcus Yakovenko, Andrey A. Amayuelas, Eder Bartolomé, Luis Meloni, Simone Grosu, Yaroslav Casciola, Carlo Massimo Giacomello, Alberto Soft Condensed Matter Although coveted in applications, few materials expand when subject to compression or contract under decompression, i.e., exhibit the negative compressibility phenomenon. 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 lyophobic 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. |
| title | Bubbles enable volumetric negative compressibility in metastable elastocapillary systems |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2310.07580 |