Bubble Formation in Physical and Biological Systems: A Manifestation of Counterdiffusion in Composite Media

  title={Bubble Formation in Physical and Biological Systems: A Manifestation of Counterdiffusion in Composite Media},
  author={David J. Graves and J Idicula and C. J. Lambertsen and John Anthony Quinn},
  pages={582 - 584}
The counterdiffusion of gases across a composite layer can lead to supersaturation and development of bubbles within the layer. A physicochemical model has been derived to predict the extent of such supersaturation; experiments with inert liquid layers confirm predictions. These findings explain the evolution of cutaneous lesions observed in man during simulated deep-sea dives and the cutaneous lesions and intravascular bubbles experimentally induced in pigs by exchanging certain inert gases… 

Supersaturation by counterperfusion and diffusion of gases.

  • B. Hills
  • Physics
    Journal of applied physiology: respiratory, environmental and exercise physiology
  • 1977
Gaseous supersaturation can be induced under steady-state conditions when two inert gases are transmitted in opposite directions across any system comprising a diffusion barrier adjacent to a zone of

Isobaric inert gas supersaturation: observations, theory, and predictions.

  • J. Collins
  • Physics
    Journal of applied physiology: respiratory, environmental and exercise physiology
  • 1978
An isobaric inert gas supersaturation model incorporating both diffusion and perfusion properties of biological tissue is presented in a form which allows ready comparison with experimental observations, and predicts supersaturation resulting from the use of hydrogen as a breathing gas in a helium environment compared with published reports.

Factors determining temporal pattern of isobaric supersaturation.

  • C. YoungB. D'Aoust
  • Engineering
    Journal of applied physiology: respiratory, environmental and exercise physiology
  • 1981
This paper estimates the effects of diffusion in a Krogh cylinder on the supersaturation produced by suddenly changing the inert gas partial pressure in the blood and indicates that diffusion plays a role in this transient supersaturation only in long Krogh cylinders with high blood flows.

Bubble nucleation and migration in a lead–iron hydr(oxide) core–shell nanoparticle

A breakthrough in materials characterization is shown by monitoring gas bubble nucleation and migration and the associated strain evolution in a lead–iron hydroxide core–shell nanoparticle during dehydration reaction using liquid cell transmission electron microscopy.

Venous gas bubbles: production by transient, deep isobaric counterdiffusion of helium against nitrogen.

When awake goats were subjected to isobaric gas switching from saturation (17 hours) on 4.7 atmospheres of nitrogen (0.3 atmosphere of oxygen) to 4.7 atmospheres of helium (0.3 atmosphere of oxygen),

Gas Exchange in Body Cavities

The sections in this article are: 1 Types of Gas Cavities 1.1 Open Nonventilated Cavities 1.2 Closed Rigid Cavities 1.3 Closed Collapsible Cavities 2 Theory 2.1

Permeation Properties in Laminated Membranes

The intrinsic permeability constant of the membrane was shown to be between the maximum or minimum intrinsic permeable constant of all component membranes, which means the separation factor of the laminated membrane for any type of permeating molecules will bebetween the values of maximum and minimum separation factors of the component membranes.



Sorption and flow of gases in polyethylene

Solubilities and diffusivities of N2, O2, CO2, and He in a variety of polyethylenes were measured in the temperature range 0–50°C. Polyethylene films studied covered a range of crystallinities

Dysbarism: Osmosis Caused by Dissolved Gas?

It is concluded that partial-pressure gradients of dissolved gases in the tissues of animals and man should cause flows of water along osmotic gradients, which may partially account for some of the symptoms and signs of dysbarism.

Effects of High Ambient Pressures of Nitrogen, Neon and Helium on Respiratory, Neurophysiological and Performance Functions (Predictive Studies III)

    Supported by NIH grant HL 08899 and ONR contract N0014-67-A-0216-0026. R. Smock performed much of the two-membrane work cited, and we are indebted to N. Struble for valuable editorial assistance