Effect of different stabilized preparations of peracetic acid on biofilm.

The effect of three stabilized peracetic acid (PAA) preparations (Bioxal M), with or without surfactants, on an Escherichia coli biofilm model was studied. The biofilm was prepared in glass tubes, and was evaluated indirectly using spectrophotometry. The ability of the products to fix or remove the biofilm was determined by their detergent activity (DA).

[Children's participation in biomedical research. A planned survey of 541 parents].

Background: We have interviewed the parents of children born at two maternity hospitals to evaluate the knowledge of parents concerning the French Huriet law and their consent to the participation of their child in a randomized therapeutic trial.

Methods: The inquiry was conducted between 15 February and 30 April 1991. Each couple of parents of whom the mother had given birth in one of the hospitals was sent an explanatory letter and a questionnaire on the second day after delivery.