PREPARATION OF COLLODION SACS FOR USE IN BACTERIOLOGY
- PMID: 19868478
- PMCID: PMC2128168
- DOI: 10.1084/jem.33.1.25
PREPARATION OF COLLODION SACS FOR USE IN BACTERIOLOGY
Abstract
A standardized method is described in detail by which collodion sacs suitable for intraperitoneal incubation and for other bacteriological experiments may be produced in large numbers, sterilized, and handled with convenience and the minimum danger of contamination. Various factors influencing permeability have been subjected to experiment. Like Brown, we found that immersion in alcohol is the most important factor, but the high permeability conferred by alcohol treatment is lost during heat sterilization if the membrane was previously allowed to dry. Quantitative experiments on the dialysis of sodium chloride, and simple tests with other substances indicate the general character of the membranes and their probable field of usefulness in bacteriology.
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