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Endotoxin Detection (CAT#: STEM-MB-0127-WXH)

Introduction

Endotoxin is a component in the cell wall of Gram-negative bacteria, which is toxic to the host. Therefore, it is necessary to detect and control the content of endotoxin to avoid adverse reactions of the host when the recombinant protein is used in animal experiments, which will affect the experimental results. The endotoxins of various bacteria are roughly the same, which can cause fever, microcirculation disturbance, endotoxin shock and disseminated intravascular coagulation. When it comes to cell and animal experiments, there are generally strict requirements for endotoxin control.




Applications

• Endotoxin detection not only helps to identify whether it is a bacterial infection, especially for Gram-negative bacilli infection, it can also indicate the severity of the infection, and can be used for rapid auxiliary diagnosis
• It is beneficial to clinical early diagnosis and treatment of diseases, provides a certain theoretical basis for the selection of drugs, and conducts dynamic monitoring of the disease, which is of great significance to the curative effect and prognosis judgment after drug administration.
• It is used for the monitoring of hemodialysis fluid, which plays an important role in ensuring the treatment effect and patient safety.

Procedure

1. Limulus test method: Limulus test method is realized through a cascade reaction. Endotoxin activates factor C (FC) with the participation of divalent cations, and then activates other zymogens to produce a series of clotting enzyme reactions.
2. Recombinant factor C method: In the reaction, the recombinant factor C activated by endotoxin cleaves the fluorescent substrate to generate a fluorescent complex, which is quantified by quantitative detection of the fluorescent complex.
3. Pyrogen test method: This method is a relatively wide method for detecting pyrogens, and its content is tested by using the characteristic that a small amount of endotoxin can cause an increase in animal body temperature.
4. Other methods: immunological methods (enzyme-linked immunosorbent assay, rocket immunoelectrophoresis simple test, double antibody sandwich L mountain SA method, etc.), biological methods, chemiluminescence, flow cytometry, liquid chromatography, etc.

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