1. source: ensure that the purchased foreign bodies come from reliable laboratories or research institutions. These laboratories usually have good experimental facilities and strict quality control system, which can ensure the authenticity and purity of foreign bodies.
2. Detection method: Use known foreign body specific markers (such as CD63, CD8 1, ALIX, etc.). ) for testing. These markers exist widely in foreign bodies, so they can effectively identify foreign bodies from eukaryotic cells. In addition, the identity of foreign bodies can be further verified by electron microscope observation and flow cytometry.
3. Price: Be cautious about products with low prices. The extraction and purification process of foreign bodies is complex and expensive. Too low a price may mean that the quality and authenticity of products are problematic.
4. Literature support: refer to relevant research papers and materials to understand the source, preparation method and application field of this foreign body. If possible, ask the supplier for relevant experimental data and supporting documents.
5. Ask the supplier: Ask the supplier about the production technology, quality control measures and product certificate of foreign bodies. Select suppliers who can provide detailed information and are willing to be audited by a third party.
In a word, multiple factors need to be considered comprehensively to distinguish between true and false exosomes, including source, detection method, price, literature support, supplier reputation and so on. Through these efforts, you can largely ensure that the purchased foreign bodies are authentic and of high quality.