[Evaluation of substrate specificity of biosensor models based on strains degrading polycyclic aromatic compounds].

Models of microbial biosensors based on 11 strains of degrading surface-active substances (SASs) and polycyclic aromatic hydrocarbons (PAHs) were studied. Substrate specificity, sensitivity, and stability of biosensor models were comparatively evaluated.

[Comamonas testosteroni strain TI as a potential base for a microbial sensor detecting surfactants].

Strain Comamonas testosteroni TI, capable of degrading the nonionic surfactant (NIS) nonylphenolethoxylate (OP-10), was used for constructing a pilot cellular biosensor. The lower NIS detection limit for the biosensor was 0.25 mg/l.