[An experimental biotechnical system for determining an index of toxicity].

The system of bioengineering for determination of toxicity index with bovine spermatozoal suspension as a primary transducer was developed. The toxicity index is determined according to a change in spermatozoal suspension mobility defined with the help of an optoelectronic device. The system of bioengineering is used for determination of toxicity index of polymers for medical applications.

[Method of determining the activity of cell suspensions as determined by their natural motility].

A new method and setup for determination of motile cell suspension activity are offered. A possibility of measuring the activity with regard to the quota of motile cells and their mean velocity has been shown. Bovine sperm in two diluents was applied as a test object.