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High bandwidth noninvasive measurements of the linear viscoelasticity of collagen gels
- Source :
- Journal of Rheology, Journal of Rheology, American Institute of Physics, 2016, 60 (6), pp.1269-1278. ⟨10.1122/1.4965039⟩, Journal of Rheology, 2016, 60 (6), pp.1269-1278. ⟨10.1122/1.4965039⟩
- Publication Year :
- 2016
- Publisher :
- Society of Rheology, 2016.
-
Abstract
- International audience; We report measurements of the linear viscoelastic modulus of collagen gels. Collagen gels are cross-linked networks of bundles formed from the association of single filaments. Their structure is heterogeneous at microscopic length scales, and measurements of their viscoelasticity at a larger scale are required. We use a technique that we recently developed based on the measurement of surface thermal fluctuations and called surface fluctuation specular reflection [Pottier et al., Soft Matter 7, 7843–7850 (2011)] to characterize the linear viscoelastic properties of collagen gels for frequencies ranging from 1 Hz to 30 kHz. These properties are determined at a mesoscopic scale (∼100 μm) at which the gels are homogeneous. We further study the influence of both collagen origin and concentration in the light of previous findings on these systems.
- Subjects :
- 0301 basic medicine
Mesoscopic physics
Materials science
Mechanical Engineering
Modulus
Thermal fluctuations
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
Viscoelasticity
Quantitative Biology::Cell Behavior
Condensed Matter::Soft Condensed Matter
03 medical and health sciences
030104 developmental biology
Mechanics of Materials
Homogeneous
[CHIM]Chemical Sciences
High bandwidth
General Materials Science
Soft matter
Specular reflection
Composite material
0210 nano-technology
Subjects
Details
- ISSN :
- 15208516 and 01486055
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Journal of Rheology
- Accession number :
- edsair.doi.dedup.....7fe272cf784e9094821a70743ea27a76