منابع مشابه
Rheology of Block Copolypeptide Solutions: Hydrogels with Tunable Properties
Amphiphilic block copolypeptides were prepared through transition-metal-mediated polymerization of amino acid N-carboxyanhydrides. In aqueous solution these materials form strong hydrogels at low concentrations. The self-assembly process that is responsible for gelation was investigated by measuring the rheological properties of the gels for a variety of molecular architectures: poly-L-lysineb-...
متن کاملDynamic rheology studies of in situ polymerization process of polyacrylamide–cellulose nanocrystal composite hydrogels
A series of dynamic small-amplitude oscillatory shear experiments for in situ polymerization process of polyacrylamide–cellulose nanocrystal (PAM–CNC) nanocomposite hydrogels were performed to investigate the relationship between rheological properties and synthesis parameters including chemical cross-linker concentration, polymerization temperature, initiator concentration, and CNC aspect rati...
متن کاملSmall Peptide-Based Hydrogels: Monitoring Stiffness and Self-Assembly Kinetics by Means of Oscillatory Rheology
The response of selected FMOCdipeptides to pH and ionic strength has been studied by oscillatory rheology coupled to microscopy. The gelation rate was proportional to that of protonation of the dipeptide carboxylic group. The ionic strength had also an effect on the gelation kinetics and morphology of the gel obtained. INTRODUCTION Hydrogels are an important class of biomaterials because they r...
متن کاملRheology of peptide- and protein-based physical hydrogels: are everyday measurements just scratching the surface?
Rheological characterization of physically crosslinked peptide- and protein-based hydrogels is widely reported in the literature. In this review, we focus on solid injectable hydrogels, which are commonly referred to as 'shear-thinning and rehealing' materials. This class of what sometimes also are called 'yield-stress' materials holds exciting promise for biomedical applications that require w...
متن کاملControlling the rheology of gellan gum hydrogels in cell culture conditions.
Successful culturing of tissues within polysaccharide hydrogels is reliant upon specific mechanical properties. Namely, the stiffness and elasticity of the gel have been shown to have a profound effect on cell behaviour in 3D cell cultures and correctly tuning these mechanical properties is critical to the success of culture. The usual way of tuning mechanical properties of a hydrogel to suit t...
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ژورنال
عنوان ژورنال: Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan)
سال: 1989
ISSN: 0387-1533
DOI: 10.1678/rheology1973.17.2_100