An analysis of the material properties of porcine corneas has been performed. A simple stress relaxation test was performed to determine the viscoelastic properties and a rheological model was built based on the Generalized Maxwell (GM) approach. A validation experiment using nano-indentation showed that an isotropic GM model was insufficient for describing the corneal material behaviour when e...

The understanding of polymeric fluids flows is of essential importance for several industry sectors, including plastic and food processing industries. The rheological response of viscoelastic fluids is quite complex, including combination of viscous and elastic effects and highly non-linear viscous and elastic phenomena. In a previous work we presented a solver for internal viscoelastic fluid f...

Nanoindentation has become a standard method for measuring mechanical properties of bone, especially within microstructural units such as individual osteons or trabeculae. The use of nanoindentation to measure elastic properties has been thoroughly studied and validated. However, it is also possible to assess time dependent properties of bone by nanoindentation. The goal of this study was to co...

Different strategies have been developed to incorporate bioactive compounds into food products improve their biological activity against degradation effects. The aim of this study was develop natural yogurt enriched with mango (Mangifera indica) peel extracts (MPEs) in chitosan–xanthan gum dispersions and evaluate physicochemical, rheological, antioxidant activity. A hydroethanolic extract obta...

Cereal Chem. 72(l):53-58 The range in moduli for isolated starch and vital gluten doughs showed action of the starch with the gluten. The source of gluten also had a the existence of starch-gluten or starch-gluten-water interactions in dough. significant effect on dough rheology, as indicated by the range of elastic Starches isolated from different wheat cultivars and mixed into dough (G') and ...

C-trim30, a new beta-glucan-rich hydrocolloid containing 32%beta-glucan, was obtained by steam jet-cooking and fractionating oat bran concentrates. It was then incorporated into batter formulations to investigate the rheological effects of C-trim30, which were correlated with batter attributes. In steady shear measurements, the use of C-trim30 led to the increase in batter viscosity, while it d...

This paper describes the rheological properties of silated hydroxypropylmethylcellulose (HPMC-Si) used in biomaterials domain as a three-dimensional synthetic matrix for tissue engineering. The HPMC-Si is an HPMC grafted with 3-glycidoxypropyltrimethoxysilane (GPTMS). HPMC and HPMC-Si were studied. It is shown that although silanization reduces the hydrodynamic volume in dilute solution, it doe...

Understanding the rheological properties of soft biological tissue is a key issue for mechanical systems used in the health care field. We propose a simple empirical model using fractional dynamics and exponential nonlinearity (FDEN) to identify the rheological properties of soft biological tissue. The model is derived from detailed material measurements using samples isolated from porcine live...

*Correspondence: Seung-Bok Choi , Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, South Korea e-mail: [email protected] This study is concerned with an investigation of the plate-like iron particles based MR suspensions under the application of magnetic fields to ascertain the influence of particle size in the rheological perfor...