ISSN:
0021-9304
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Medicine
,
Technology
Notes:
A method is shown for deducing the surface area of a pendant drop from the same profile photograph as is normally used to determine interfacial tension. Manipulation of such drops by a micrometer syringe then enables the pendant drop to be used as a surface balance for studying adsorption from bulk solutions. Results are given for the compression of films from solutions of albumin, γ-globulin, fibrinogen, albumin-γ-globulin mixture and albumin-γ-globulin-fibrinogen mixture, and from serum, plasma, and blood at the isooctane-buffer interface. It is suggested that γ-globulin and fibrinogen films are unfolded at the interface but that albumin films are different in that they consist of an inner, unfolded layer and an outer, globular layer. A film from serum resembles that from γ-globulin alone, and not that from albumin-γ-globulin mixture, whereas a film from plasma resembles that of fibrinogen at low compression and that of albumin-γ-globulin-fibrinogen mixture at high compression. A film from blood is shown to resemble that from plasma.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jbm.820120507
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