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Polymyxins are polypeptide antibiotics. By binding lipopolysaccharide (LPS), they disrupt bacterial membranes and are used to treat Gram-negative infections. Because they make bacterial membranes more permeable, they are also used to boost the release of secreted toxins from bacteria.
Kit Components
| Component | MPX200 |
|---|---|
| Reagent PMX1 | 6 ml |
| Reagent PMX2 | 6 ml |
Assay Principle
The fluorescence of the assay reagent at 535 nm (excitation 485 nm) increases in the presence of polymyxins. The signal is linear with polymyxin concentration, and unknowns are read from a standard curve.
Specifications
| Assay Target | Polymyxin concentration |
|---|---|
| Analyte | Polymyxin |
| Analyte Category | Drug |
| Assay Type | Concentration Assay |
| Detection Method | Fluorescence |
| Detection Wavelength | Ex 485 nm / Em 535 nm |
| Plate Format | 96-well plate or cuvette |
| Instrument Required | Plate reader or fluorometer |
| Assay Time | About 18 min (3 min Reagent PMX1 + 15 min Reagent PMX2) |
| Measuring Range | Micrograms per ml |
| Standard Curve Range | 0 - 0.2 mg/ml |
| Sample Types | Drug discovery, drug development and pharmaceutical samples |
| Size | 200 assays |
| Storage | Please contact us to confirm storage conditions. |
| Shipping | Shipped frozen. |
Protocol
The manufacturer's protocol describes the procedure and reaction volumes.
- Polymyxin Assay (PDF, see Documents): Covers catalog # MPX200.
Safety & Handling
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