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@ARTICLE{Juan:616027,
      author       = {Juan, Sanchez and Dammann, Lars and Gallardo Dominguez,
                      Laura and Li, Zhuoqing and Froeba, Michael and Meissner,
                      Robert and Stone, Howard and Huber, Patrick},
      title        = {{D}eformation {D}ynamics of {N}anopores upon {W}ater
                      {I}mbibition},
      journal      = {Proceedings of the National Academy of Sciences of the
                      United States of America},
      volume       = {121},
      number       = {38},
      issn         = {0027-8424},
      address      = {Washington, DC},
      publisher    = {National Acad. of Sciences},
      reportid     = {PUBDB-2024-06320, arXiv:2311.13025},
      pages        = {e2318386121},
      year         = {2024},
      abstract     = {Capillarity-driven transport in nanoporous solids is
                      ubiquitous in nature and is of increasing importance for the
                      functionality of modern liquid-infused engineering
                      materials. During imbibition, highly curved menisci are
                      driven by negative Laplace pressures of several hundred
                      atmospheres, exerting an enormous contractile load on an
                      increasing portion of the porous matrix. Due to the
                      challenge of simultaneously monitoring imbibition and
                      deformation with high spatial resolution, the resulting
                      coupling of solid elasticity to liquid capillarity has
                      remained largely unexplored. Here, we study water imbibition
                      in mesoporous silica using optical imaging, gravimetry, and
                      high-resolution dilatometry. In contrast to an expected
                      Laplace pressure-induced contraction, we find a
                      square-root-of-time expansion and an additional abrupt
                      length increase when the menisci reach the top surface. The
                      final expansion is absent when we stop the imbibition front
                      inside the porous medium in a dynamic imbibition-evaporation
                      equilibrium, as is typical for water transport and
                      transpiration in plants. These peculiar deformation
                      behaviors are validated by single-nanopore molecular
                      dynamics simulations and described by a continuum model that
                      highlights the importance of expansive surface stresses at
                      the pore walls (Bangham effect) and the buildup or release
                      of contractile Laplace pressures as nanoscale menisci
                      collectively advance, arrest, or disappear. Our model
                      predicts that these observations are valid not only for
                      water imbibition in silica, but for any imbibition process
                      in nanopores, regardless of the liquid/solid combination.
                      This also suggests that simple deformation measurements can
                      be used to quantify surface stresses and Laplace pressures
                      or transport in a wide variety of natural and artificial
                      porous media.},
      cin          = {CIMMS},
      ddc          = {500},
      cid          = {I:(DE-H253)CIMMS-20211022},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / SFB 986 B07 - Polymere in
                      grenzflächenbestimmten Geometrien: Struktur, Dynamik und
                      Funktion an planaren und in porösen Hybridsystemen (B07)
                      (318019437) / HIDSS-0002 - DASHH: Data Science in Hamburg -
                      Helmholtz Graduate School for the Structure of Matter
                      $(2019_IVF-HIDSS-0002)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(GEPRIS)318019437 /
                      $G:(DE-HGF)2019_IVF-HIDSS-0002$},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:39264743},
      eprint       = {2311.13025},
      howpublished = {arXiv:2311.13025},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2311.13025;\%\%$},
      UT           = {WOS:001347444400001},
      doi          = {10.1073/pnas.2318386121},
      url          = {https://bib-pubdb1.desy.de/record/616027},
}