| dc.creator | Rizzi, L. G. | |
| dc.date | 2018-05-03T18:15:38Z | |
| dc.date | 2018-05-03T18:15:38Z | |
| dc.date | 2017-12-29 | |
| dc.date.accessioned | 2023-09-27T20:43:56Z | |
| dc.date.available | 2023-09-27T20:43:56Z | |
| dc.identifier | 10897690 | |
| dc.identifier | https://doi.org/10.1063/1.5012753 | |
| dc.identifier | http://www.locus.ufv.br/handle/123456789/19321 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8946594 | |
| dc.description | Relations between static and dynamic viscoelastic responses in gels can be very elucidating and may provide useful tools to study the behavior of bio-materials such as protein hydrogels. An important example comes from the viscoelasticity of semisolid gel-like materials, which is characterized by two regimes: a low-frequency regime, where the storage modulus G (ω) displays a constant value Geq , and a high-frequency power-law stiffening regime, where G (ω) ∼ ωn . Recently, by considering Monte Carlo simulations to study the formation of peptides networks, we found an intriguing and somewhat related power-law relationship between the plateau modulus and the threshold frequency,
i.e., Geq ∼ (ω∗ )∆ with ∆ = 2/3. Here we present a simple theoretical approach to describe that relationship and test its validity by using experimental data from a β-lactoglobulin gel. We show that our approach can be used even in the coarsening regime where the fractal model fails. Remarkably, the very same exponent ∆ is found to describe the experimental data. | |
| dc.format | pdf | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | The Journal of Chemical Physics | |
| dc.relation | v. 147, n. 24, p. 2449020-2449024, dec. 2017 | |
| dc.rights | Published by AIP Publishing | |
| dc.subject | Plateau modulus | |
| dc.subject | Peptide gels | |
| dc.title | On the relationship between the plateau modulus and the threshold frequency in peptide gels | |
| dc.type | Artigo | |
