https://www.selleckchem.com/products/sri-011381.html In recent years, the IVD industry has developed rapidly based on the increasing market demand, and plays an important role in disease prevention, clinical diagnosis, health monitoring and guiding treatment. Therefore, followed quality and safety issues are highly concerned. The unique advantages of blockchain technology, decentralization, distrust and non-tampering, can write into trusted node data in every link covering production, circulation and usage of IVD reagents, and establish a distributed ledger with full backup, which makes the anti-conterfeiting and traceability for IVD reagents possible. We discuss whole process intelligent tracing system for IVD reagents based on blockchain technology. Through the strong mechanism of pre-supervision and post-punishment, the source of reagents can be traced, quality and responsibility can be investigated, and the medical inspection quality and diagnostic safety can be guarded.Negative pressure wound therapy has become an important technology in the global field of wound care, and the development of this technology is inseparable from the development and application of negative pressure wound care products. Based on the characteristics of the negative pressure wound therapy products, this paper discusses the key contents that should be considered in the design and evaluation of the negative pressure wound protection products from the aspects of physical and chemical properties, biocompatibility, intended use and risk warning information, in order to provide reference for the development and technical review of such products.In this study, cytometric beads array(CBA) was used to determine the immunoglobulin content in humoral immunity evaluation of biomedical materials. The bovine-derived acellular dermal matrix was selected as a test sample and implanted into Balb/C mice subcutaneously to 4 weeks according to the high, medium and low dose groups. Four weeks later, IgG1