Journal
ARCHIVE OF APPLIED MECHANICS
Volume 89, Issue 1, Pages 91-103Publisher
SPRINGER
DOI: 10.1007/s00419-018-1450-2
Keywords
Fibrin; Polymer; Magnetic gels; Structural transformations; Elastic modulus
Categories
Funding
- Ministry of Education and Science of the Russian Federation [02.A03.21.0006, 3.1438.2017/4.6, 3.5214.2017/6.7]
- Russian Fund of Basic Researches [18-08-00178]
- Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica, MINECO, Spain [FIS2013-41821-R]
- ERDF, European Union [FIS2013-41821-R]
- Ministerio de Economia, Industria y Competitividad, MINECO [FIS2017-85954-R]
- Agencia Estatal de Investigacion, AEI, Spain [FIS2017-85954-R]
- Fondo Europeo de Desarrollo Regional, FEDER, European Union [FIS2017-85954-R]
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We report an experimental and theoretical study of the rheological properties of magnetic biogels consisting of fibrin polymer networks with embedded magnetite nanoparticles, swollen by aqueous solutions. We studied two types of magnetic biogels, differenced by the presence or absence of an applied magnetic field during the initial steps of cross-linking. The experiments demonstrated very strong dependence of the elastic modulus of the magnetic biogels on the concentration of the magnetic particles. We finally developed some theoretical models that explain the observed strong concentration effects.
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