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(178) Production(s) de l'année 2023
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Predicting Dynamic Heterogeneity in Glass-Forming Liquids by Physics-informed Machine Learning 
Auteur(s): Jung G., Biroli Giulio, Berthier L.
(Article) Publié:
Physical Review Letters, vol. 130 p.238202 (2023)
Texte intégral en Openaccess : 
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Dynamic Gardner cross-over in a simple glass
Auteur(s): Liao Qinyi, Berthier L., Zhou Hai-Jun, Xu Ning
(Article) Publié:
Proceedings Of The National Academy Of Sciences Of The United States Of America, vol. 120 p.e2218218120 (2023)
Texte intégral en Openaccess :
Ref HAL: hal-04140969_v1
Ref Arxiv: 2209.10917
DOI: 10.1073/pnas.2218218120
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé: The criticality of the jamming transition responsible for amorphous solidification has been theoretically linked to the marginal stability of a thermodynamic Gardner phase. While the critical exponents of jamming appear independent of the preparation history, the pertinence of Gardner physics far from equilibrium is an open question. To fill this gap, we numerically study the nonequilibrium dynamics of hard disks compressed toward the jamming transition using a broad variety of protocols. We show that dynamic signatures of Gardner physics can be disentangled from the aging relaxation dynamics. We thus define a generic dynamic Gardner cross-over regardless of the history. Our results show that the jamming transition is always accessed by exploring increasingly complex landscape, resulting in anomalous microscopic relaxation dynamics that remains to be understood theoretically.
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Improving dental epithelial junction on dental implants with bioengineered peptides
Auteur(s): Panayotov Ivan, Vegh Attila Gergely, Martin Fernandez M., Vladimirov Boyan, Larroque Christian, Gergely C., Cuisinier Frédéric Jg, Estephan Elias
(Article) Publié:
Frontiers In Bioengineering And Biotechnology, vol. p. (2023)
Texte intégral en Openaccess : 
Ref HAL: hal-04139349_v1
DOI: 10.3389/fbioe.2023.1165853
Exporter : BibTex | endNote
Résumé: Introduction: The functionalization of titanium (Ti) and titanium alloys (Ti6Al4V) implant surfaces via material-specific peptides influence host/biomaterial interaction. The impact of using peptides as molecular linkers between cells and implant material to improve keratinocyte adhesion is reported.Results: The metal binding peptides (MBP-1, MBP-2) SVSVGMKPSPRP and WDPPTLKRPVSP were selected via phage display and combined with laminin-5 or E-cadherin epithelial cell specific peptides (CSP-1, CSP-2) to engineer four metal-cell specific peptides (MCSPs). Single-cell force spectroscopy and cell adhesion experiments were performed to select the most promising candidate. In vivo tests using the dental implant for rats showed that the selected bi functional peptide not only enabled stable cell adhesion on the trans-gingival part of the dental implant but also arrested the unwanted apical migration of epithelial cells.Conclusion: The results demonstrated the outstanding performance of the bioengineered peptide in improving epithelial adhesion to Ti based implants and pointed towards promising new opportunities for applications in clinical practice.
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Active and driven colloids interacting with vesicles
Auteur(s): Stocco A.
Conference: DPG Spring Meeting (Dresden (GERMANY), DE, 2023-03-26)
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Dynamics of active and driven colloids interacting with soft membranes
Auteur(s): Stocco A.
Conference: From Soft Matter to Biophysics (Les Houches, France, FR, 2023-01-29)
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Casimir-Lifshitz force between graphene-based structures out of thermal equilibrium
Auteur(s): Jeyar Y., Austry K., Luo M., Guizal B., Chan H.B, Antezza M.
(Article) Publié:
Physical Review B, vol. 108 p.115412 (2023)
Texte intégral en Openaccess :
Ref HAL: hal-04128464_v1
Ref Arxiv: 2305.18946
Ref INSPIRE: 2663857
DOI: 10.1103/PhysRevB.108.115412
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
Résumé: We study the non equilibrium Casimir-Lifshitz force between graphene-based parallel structures held at different temperatures and in presence of an external thermal bath at a third temperature. The graphene conductivity, which is itself a function of temperature, as well as of chemical potential, allows us to tune in situ the Casimir-Lifshitz force. We explore different non equilibrium configurations while considering different values of the graphene chemical potential. Particularly interesting cases are investigated, where the force can change sign going from attractive to repulsive or where the force becomes non monotonic with respect to chemical potential variations, contrary to the behaviour under thermal equilibrium.
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Properties of dentin, enamel and their junction, studied with Brillouin scattering and compared to Raman microscopy
Auteur(s): Desoutter Alban, Felbacq D., Gergely C., Varga B., Bonnet L., Etienne P., Vialla R., Cuisinier Frédéric, Salehi Hamideh, Rousseau E., Ruffle B.
(Article) Publié:
Archives Of Oral Biology, vol. 152 p.105733 (2023)
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