Abstract: Disclosed are a current collector, an electrode plate, and a battery. The current collector includes a substrate and a conductive coating layer coated on the surface of the substrate, where the conductive coating layer includes alternately arranged raised parts and recessed parts. A plurality of recessed parts are arranged on the conductive coating layer, which may increase the component of the coated active material without increasing the overall thickness, significantly increase the bonding strength of the active material and the conductive coating layer, and improve the conductivity; it can effectively inhibit the thickness expansion of the electrode plate, and solve the problem that the bonding strength of the carbon-containing layer and the active material in the prior art needs to be improved.

Abstract: An electronic vaporization device includes: a shell with a liquid storage cavity formed inside; a heating component arranged in the shell and in communication with the liquid storage cavity in a liquid guiding manner; a heating base arranged in the shell for mounting the heating component; a core arranged in the shell; an airflow sensor arranged in the shell; and a mounting base arranged in the shell for mounting the airflow sensor. The core is clamped between the heating base and the mounting base.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: An air-curtain forming structure applicable to an electronic vaporization device includes: an airflow channel for delivering vapor; and a first air inlet channel in communication with the airflow channel and for introducing an external airflow into the airflow channel so as to form a blocking airflow between an inner wall of the airflow channel and the vapor.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: Provided in the present disclosure is a method for using a four-plasmid system to prepare modified immune effector cells. The method comprises: forming a lentivirus by using four plasmids within 293T cells, extracting and obtaining the lentivirus, then transfecting immune effector cells by using the lentivirus, and expressing a chimeric antigen receptor. Also provided in the present disclosure is a use of the immune effector cell obtained by using the described method and of a composition containing the immune effector cell.

Abstract: A production process for substituted phenylacetic acids or ester analogs thereof is disclosed. In this process toluene or toluene substituted with various substituents, an alcohol, an oxidant and carbon monoxide are used as raw materials to obtain compounds comprising structure of phenylacetic acid ester or analogs thereof by catalysis of the complex catalyst formed from transition metal and ligand, and such compounds are hydrolyzed to obtain various substituted phenylacetic acid based compounds. This type of compounds and their derivatives serve as important fine chemicals used widely in the industries of pharmaceuticals, pesticides, perfume and the like.