The cellophane transfer technique has been used in the clinical laboratory as a guide to combined treatment and also to study the bactericidal actions of all common antibiotics, but during recent work it became clear that some antibiotics are absorbed on to the cellophane and enough may be carried through on to the fresh medium to inhibit growth of survivors even after transfer. The present inv...

The differentiation attained by emigrating embryo chick ceils cultivated under strips and sheets of dialysis cellphane (1-4) in multipurpose culture chambers (5) prompted us to make a similar study of malignant tissues and strains. One of the more provocative results obtained with HeLa cells (6, 7) is contained in this note. The environmental conditions resulting when sheets of cellophane are l...

The aim of this study was to improve the transdermal permeation of Diclofenac Soduim. Permeation studies were carried out in -vitro using Cellophane Membrane. Topical gel formulations of diclofenac sodium were prepared by using Carbopol 934, Carbopol 940, sodium carboxymethylcellulose (NaCMC), polymer as a gel-forming material that is biocompatible and biodegradable. The skin permeation enhance...

I t is known that the yield of staphylococcus toxin in plain broth and other fluid media is poor (1). The use of solid or semisolid agar media appears necessary for producing active preparations. Recently, however, McClean (1) was able to obtain potent toxins by the use of fluid media diffused through cellophane bags. The surface of the cellophane membrane appeared to play a r61e similar to tha...

Although Pseudomonas aeruginosa has been known to produce hemolysis on blood agar plates, attempts to obtain hemolysin in broth culture filtrates of this organism have been generally unsuccessful. Bullock and Hunter (1900) noted that filtrates of 3 to 4 week old broth cultures of this organism lysed suspensions of erythrocytes of several animal species, including man. This finding was confirmed...

Acute leukopenia occurs in all patients during the first hour of hemodialysis with cellophanemembrane equipment. This transient cytopenia specifically involves granulocytes and monocytes, cells which share plasma membrane reactivity towards activated complement components. The present studies document that complement is activated during exposure of plasma to dialyzer cellophane, and that upon r...