Abstract: The present disclosure provides a P450 cytochrome enzyme for andrographolide synthesis and its application, belonging to the field of bioengineering. The present disclosure uses Saccharomyces cerevisiae CEN.PK2-1D as a host, and implements knockout of ROX1 and GAL80 genes on the genome, and integrative expression of GGPP synthase encoding gene and CPS diterpene synthase encoding gene at ROX1 site; and implements free expression of ApCPR and CYP71A8 and CYP71D10 both with truncated signal peptides, successfully constructing recombinant S. cerevisiae, and achieving de novo synthesis of 3,15,19-Trihydroxy-8(17),13-ent-labdadiene-16-oic acid. Compared with the blank, a response value of a product peak reaches 1.9*106, and this strategy provides necessary reference for analyzing biosynthetic pathway of andrographolide and using metabolic engineering to synthesize andrographolide and related derivatives thereof.

Abstract: A preparation method of a crop straw-based seawater desalinator and a product thereof, and the preparation process is as follows: (1) crushing crop straws, and screening the crushed crop straws through a mesh sieve to obtain straw powder; (2) calcining the straw powder at a high temperature under nitrogen protection to obtain biochar, and then putting the biochar into a ball mill for ball milling to obtain ball-milled biochar; (3) adding the straw powder into a sodium hydroxide solution for reaction, and centrifuging a reactant to obtain a viscous product; and (4) stirring the viscous product uniformly with the ball-milled biochar to obtain a mixture, pouring the mixture into a mold, and freezing and drying the mixture to obtain a seawater desalinator. The evaporator features high evaporation rate and the photothermal conversion efficiency, and the ion concentration of the water body after evaporation is greatly reduced.

Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I): is disclosed. The methods of preparing the compound of formula (I) are also disclosed.

Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I): (I) is disclosed. The methods of preparing the compound of formula (I) are also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A method of preparing a compound of formula (I): is disclosed. The compound of formula (I) can be used as an antioxidant agent. The compound can also be used as an antibacterial agent to inhibit Staphylococcus aureus MRSA 18-222 and Pseudomonas aeruginosa MDR-PA 18-1774.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound with anti-drug resistant bacteria activity having the following formula (I) is disclosed. The methods of preparing the compound of formula (I) are also disclosed.

Abstract: A compound having the formula (I): is disclosed. Methods of preparing the compound of formula (I) are also disclosed. The compound of formula (I) can be prepared by reacting a compound of formula (II) with a compound of formula (III) in an organic solvent with EDC (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide). The compound of formula (I) can also be prepared by reacting the compound of formula (II) with the compound of formula (III) in 1-ethyl-3-methylimidazolium hexafluorophosphate as a solvent with silicomolybdic acid as a catalyst.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.

Abstract: The present invention proposes a data storage system and method used for the security information interaction. Said data storage system used for the security information interaction comprises a security information storage device, an unlock password generating device and an unlock server. The data storage system and method used for the security information interaction disclosed in the present invention reduce the potential security risks due to the divulgement of unlock passwords, and reduce the complexity of the unlock process, as well as reduce the potential security risks existed in the generating and writing process of the unlock password on the whole.

Abstract: The present invention proposes a security information interaction system, device and method based on the extended parameter set. Said security information interaction system based on the extended parameter set comprises a security information interaction device and a security information interaction terminal, wherein said security information interaction device may execute the operations related to the transfer of a resource by means of performing the security information interaction with said security information interaction terminal via a communication interface based on one of a primary parameter set and the extended parameter set. The security information interaction system, device and method based on the extended parameter set disclosed in the present invention may realize the transfer operations of multiple kinds of resource having different attributes, the cost is lower, and the flexible configuration and extension can be realized according to the requirements.

Abstract: The present invention proposes a security information interaction system, terminal, server and method based on the thin terminal mode. Said system comprises an access server which is capable of transferring the application service address associated with the target application service back to said security information interaction terminal based on the security information interaction request from the corresponding security information interaction terminal. The security information interaction system, terminal, server and method based on the thin terminal mode disclosed in the present invention possess the flexible expansibility, can compatibly use multiple servers providing different application services, and have higher work efficiency and higher performance.

Abstract: The present invention proposes a data storage system and method used for the security information interaction. Said data storage system used for the security information interaction comprises a security information storage device, an unlock password generating device and an unlock server. The data storage system and method used for the security information interaction disclosed in the present invention reduce the potential security risks due to the divulgement of unlock passwords, and reduce the complexity of the unlock process, as well as reduce to the potential security risks existed in the generating and writing process of the unlock password on the whole.