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| Content Provider | Springer Nature Link |
|---|---|
| Author | Vlasova, I. I. Asrieli, T. V. Gavrilova, E. M. Danilov, V. S. |
| Copyright Year | 2007 |
| Abstract | The methodical bases for detecting antibiotics using a bioluminescent assay and blood serum are briefed. Antibiotics inhibit the luminescence of a genetically engineered Escherichia coli strain. The degree of inhibition depended on the type of antibiotic, its concentration, and the time of cell incubation with antibiotic. The highest cell sensitivity was recorded towards the aminoglycoside antibiotics, which amounted to 85 ± 10 ng/ml for gentamicin and streptomycin. The sensitivity of this system to a number of antibiotics essentially increased when the cells were previously activated with blood serum. The sensitivity of this method for gentamicin and streptomycin in the presence of blood serum amounted to 2.5 ± 0.5; for tetracycline, 45 ± 8 ng/ml. Use of the sera containing specific antibodies to the antibiotic detected provided a high sensitivity of the biosensor tested. Comparison of the luminescences of E. coli cells activated with normal and specific antisera upon incubation with an antibiotic allows the type of antibiotic and its quantitative content in the sample to be determined. Characteristic of the analysis of antibiotics with the help of recombinant E. coli are a high accuracy, sensitivity, specificity, simplicity, and a short time needed for measurement. |
| Starting Page | 422 |
| Ending Page | 428 |
| Page Count | 7 |
| File Format | |
| ISSN | 00036838 |
| Journal | Applied Biochemistry and Microbiology |
| Volume Number | 43 |
| Issue Number | 4 |
| e-ISSN | 16083024 |
| Language | English |
| Publisher | Nauka/Interperiodica |
| Publisher Date | 2007-01-01 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biochemistry Microbiology Medical Microbiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Applied Microbiology and Biotechnology |
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