FIELD: biotechnology.
SUBSTANCE: method of toxicity assessment of products from polymer and textile materials is proposed. The method comprises the use of biosensor based on oxygen electrode, immobilisation of whole cells of bacteria E.coli K-12 on the surface of the oxygen electrode. The immobilisation is carried out using a semipermeable membrane. After immobilisation the respiratory activity of microorganisms is measured in the presence of the sample and standard samples of positive and negative control. Then the toxicity index is calculated and the sample toxicity is evaluated based on the value of the toxicity index.
EFFECT: simplifying assessment of toxicity and improvement of reliability of the results of the sanitary-epidemiological expertise.
2 dwg, 1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING CYTOTOXICITY OF NANOMATERIALS BASED ON ZINC OXIDE | 2015 |
|
RU2587630C1 |
| DEVICE FOR RAPID ASSESSMENT OF TOXICITY OF AQUEOUS MEDIA | 2022 |
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|
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| DEVICE FOR EXPRESS EVALUATION OF THE QUANTITY OF EASILY OXIDABLE ORGANIC SUBSTANCES BY THE INDEX OF BIOCHEMICAL OXYGEN CONSUMPTION | 2022 |
|
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| AIR TOXICITY BIOSENSOR | 2008 |
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| COMPOSITION FOR OBTAINING ORGANOSILICATE SOL-GEL MATRIX FOR IMMOBILIZATION OF MICROORGANISMS IN CREATION OF HETEROGENOUS BIOCATALYSTS | 2022 |
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RU2806804C1 |
