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Rôle of mucus viscoelasticity in clearance by cough.
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We examined the relationship between mucus rheology, depth of mucus layer, and clearance by simulated cough. A model trachea constructed of rigid plexiglass was lined with mucus simulants--borate-crosslinked locust bean gum gels. Their viscoelastic properties were determined by magnetic rheometry
Mucus transport in a miniaturized simulated cough machine: effect of constriction and serous layer simulant.
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The transport of mucus gel simulant (MGS) in a constricted simulated cough machine, using blood plasma as a serous layer simulant (SLS), was investigated. MGS was prepared from locust bean gum solutions crosslinked with varying amounts of added borate to produce gels of varying spinnability
Interactions of airflow oscillation, tracheal inclination, and mucus elasticity significantly improve simulated cough clearance.
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BACKGROUND
Viscoelastic properties of simulated mucus, angle of tracheal inclination (theta), and high-frequency airflow oscillations on median displacement of simulated mucus during simulated cough were investigated in this study.
METHODS
Mucus simulants with viscoelastic properties similar to
Comparing performance of three oscillating positive expiratory pressure devices at similar amplitude and frequencies of oscillations on displacement of mucus inside trachea during cough.
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BACKGROUND
Performance of Flutter® (Axcan Scandipharm Inc, Birmingham, AL), Acapella® (Smiths Medicals Inc, Rockland, MA) and Quake® (Thayer Medical, Tucson, AZ) were compared at similar frequencies and amplitudes of oscillations at nine angles of the device in clearing simulated mucus inside a
The role of mucus viscoelasticity in cough clearance.
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The relationships between mucus rheology, depth of mucus layer and clearance by simulated cough were examined in a study employing a model plexiglass trachea lined with gels formed from locust bean gum crosslinked with sodium tetraborate. The viscoelastic properties of the mucus simulants were
Clearance of mucus by simulated cough.
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We examined the relationship between mucus rheology, depth of mucus layer, and clearance by simulated cough. A model trachea was constructed of rigid Plexiglas of rectangular cross section (1 X 2 X 35 cm). The bottom of the trachea was lined with mucus simulants, gels prepared from locust bean gum
Clearance of viscoelastic mucus simulant with airflow in a rectangular channel, an experimental study.
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Interaction of mucus simulant with airflow in a rectangular channel is investigated experimentally. Two different viscoelastic gel mucus simulants are prepared by cross linking Borax with Locust Bean Gum (LBG) solution; liquid-like (LM) with lower storage modulus and semi-solid (SM). The rheological
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