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e. The viscosity of a fluid is a measure of its resistance to deformation at a given rate. [1] For liquids, it corresponds to the informal concept of "thickness": for example, syrup has a higher viscosity than water. [2] Viscosity is defined scientifically as a force multiplied by a time divided by an area.
Membrane fluidity. In biology, membrane fluidity refers to the viscosity of the lipid bilayer of a cell membrane or a synthetic lipid membrane. Lipid packing can influence the fluidity of the membrane. Viscosity of the membrane can affect the rotation and diffusion of proteins and other bio-molecules within the membrane, there-by affecting the ...
Osmolytes are a class of organic molecules that play a significant role in regulating osmotic pressure and maintaining cellular homeostasis in various organisms, particularly in response to environmental stressors. [1] Their primary role is to maintain the integrity of cells by affecting the viscosity, melting point, and ionic strength of the ...
The Fåhræus–Lindqvist effect (/ fɑːˈreɪ.əs ˈlɪndkvɪst /) or sigma effect[1] describes how the viscosity of a fluid, in this case blood, changes with the diameter of the tube it travels through. In particular there is a ' decrease in viscosity as the tube's diameter decreases' (although only with a tube diameter of between 10 and 300 ...
Biomolecular condensate. In biochemistry, biomolecular condensates are a class of membrane -less organelles and organelle subdomains, which carry out specialized functions within the cell. Unlike many organelles, biomolecular condensate composition is not controlled by a bounding membrane.
Rheology (/ riːˈɒlədʒi /; from Greek ῥέω (rhéō) 'flow' and -λoγία (-logia) 'study of') is the study of the flow of matter, primarily in a fluid (liquid or gas) state but also as "soft solids " or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied force. [1 ...
Typical values for the viscosity of normal human plasma at 37 °C is 1.4 mN·s/m 2. [3] The viscosity of normal plasma varies with temperature in the same way as does that of its solvent water [4];a 3°C change in temperature in the physiological range (36.5°C to 39.5°C)reduces plasma viscosity by about 10%. [5]
Viscosity models for mixtures. The shear viscosity (or viscosity, in short) of a fluid is a material property that describes the friction between internal neighboring fluid surfaces (or sheets) flowing with different fluid velocities. This friction is the effect of (linear) momentum exchange caused by molecules with sufficient energy to move ...