Topographic De-adhesion in the Viscoelastic Limit

Autor: Nguyen, Nhung, Hahn, Eugenio Hamm, Velankar, Sachin, Cerda, Enrique, Pocivavsek, Luka

The superiority of many natural surfaces at resisting soft, sticky biofoulants has inspired the integration of dynamic topography with mechanical instability to promote self-cleaning artificial surfaces. The physics behind this novel mechanism is cur

Externí odkaz: http://arxiv.org/abs/2209.09387

Wettability of Amino Acid-Functionalized PSMA Electrospun Fibers for the Modulated Release of Active Agents and Its Effect on Their Bioactivity

Autor: Tamayo, Sebastián Santander, Nicolás Padilla-Manzano, Bastián Díaz, Renato Bacchiega, Elizabeth Jara, Luis Felipe Álvarez, Cristóbal Pinto, Juan C. Forero, Paula Santana, Eugenio Hamm, Marcela Urzúa, Laura

Publikováno v: Pharmaceutics; Volume 15; Issue 6; Pages: 1659

The ideal treatment for chronic wounds is based on the use of bioactive dressings capable of releasing active agents. However, the control of the rate at which these active agents are released is still a challenge. Bioactive polymeric fiber mats of p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=multidiscipl::502c21924c57c9ac3d57fa420fdd860f

Lateral indentation of a thin elastic film

Autor: Miguel Trejo, Victor Romero, Eugenio Hamm, Enrique Cerda

Publikováno v: Soft Matter
Soft Matter, 2022, 18 (4), pp.762-767. ⟨10.1039/d1sm01348c⟩
Soft Matter, Royal Society of Chemistry, In press, ⟨10.1039/d1sm01348c⟩

International audience; Indentation is a standard, widely used technique in mechanical assays and theoretical analysis. It unveils the fundamental modes of deformation and predicts the response of the material under more complex loads. Here we presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4a16456a337348a5df5bbe92be0c98c
https://doi.org/10.1039/d1sm01348c

Nature of Crack Path Instabilities in Thin Sheets Cut by Blunt Objects

Autor: Iryna Sivak, Eugenio Hamm, Benoît Roman

Publikováno v: Physical Review Letters
Physical Review Letters, American Physical Society, 2020, 124 (17), ⟨10.1103/PhysRevLett.124.174101⟩

International audience; Cutting a brittle soft sheet with a blunt object leaves an oscillating crack that seemingly violates the principle of local symmetry for fracture. We experimentally find that at a critical value of a well chosen control parame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cea5ee7e458ec3370e8f1e340166f69d
https://doi.org/10.1103/physrevlett.124.174101

Intertwined Multiple Spiral Fracture in Perforated Sheets

Autor: Eugenio Hamm, Benoît Roman, J. F. Fuentealba

Publikováno v: Physical Review Letters. 116

We study multiple tearing of a thin, elastic, brittle sheet indented with a rigid cone. The n cracks initially prepared symmetrically propagate radially for n≥4. However, if n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a030eb16d1463c16ce2a592de5d5d2bf
https://doi.org/10.1103/physrevlett.116.165501