Viscoelasticity of cellulose polymers and mucociliary transport on frog palates
نویسندگان
چکیده
منابع مشابه
Viscoelasticity of dilute solutions of semiflexible polymers.
We show using Brownian dynamics simulations and theory how the shear relaxation modulus G(t) of dilute solutions of relatively stiff semiflexible polymers differs qualitatively from that of rigid rods. For chains shorter than their persistence length, G(t) exhibits three time regimes: At very early times, when the longitudinal deformation is affine, G(t) approximately t(-3/4). Over a broad inte...
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We have developed a new method to quantify the mucociliary transport force (MCTF). We validated the method by examining the effects of isoproterenol (Iso), norepinephrine (NE), epinephrine (Epi), and acetylcholine (ACh) on MCTF. In the first series of experiments, the effects of leukotrienes (LTs) on MCTF were investigated. In accordance with previous studies, Iso, NE, and ACh induced increases...
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We have advanced our previous static theory of polymer entanglement involving an extended Cahn-Hilliard functional, to include time-dependent dynamics. We go beyond the Gaussian approximation, to the one-loop level, to compute the frequency dependent storage and loss moduli of the system. The four parameters in our theory are obtained by fitting to available experimental data on polystyrene mel...
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UNLABELLED The airways are made up of ciliated epithelium which secretes mucous, protecting the respiratory tract from particles inhaled during breathing. Its is paramount to understand the physiology and the mechanisms involved in mucociliary activity. Literature suggests that Nitric oxide (NO), especially the one produced by iNOS expression, maintains the mucociliary function and the immune d...
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ژورنال
عنوان ژورنال: International Journal of Pharmaceutics
سال: 1993
ISSN: 0378-5173
DOI: 10.1016/0378-5173(93)90390-2