China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

National Center for Nanoscience and Technology, China

Liang Zou

Zhiqiang Wang

Hongwei Li

Mingfeng Li

Pengfei Wang

Ying Fang

Xiaoli Wei

Guofu Xia

Jinfen Wang

Shouliang Guan

Mingde Du

Shuqing Wang

Jili Hou

Run Xu

A method and system for pretreating waste plastics and a method and system for producing an automotive fuel from waste plastics are provided. The method for pretreating waste plastics includes the steps of: 1) contacting a waste plastic with a pretreating agent and a solvent oil for impurity removal; and 2) subjecting the effluent from step 1) to solid-liquid separation to obtain an insoluble material and an impurity-removed plastic-containing solution. The impurity-removed plastic-containing solution obtained by the method and system for pretreating waste plastics has very low metal content, chlorine content and silicon content.

Method and system for treating waste plastic material

Disclosed are an implantable flexible neural microelectrode comb, and a preparation method and implantation method therefor. The flexible neural microelectrode comb is mainly composed of a flexible substrate layer (), a flexible insulation layer (), and a metal connection wire layer () arranged between the flexible substrate layer () and the flexible insulation layer (); the flexible neural microelectrode comb comprises a filament structure (), a mesh structure (), a plane structure () and a bonding pad area () connected in sequence; electrode sites () are arranged on the filament structure (); bonding pads are arranged on the bonding pad area (); the metal connection wire layer () is composed of metal connection wires connecting the electrode sites () and the bonding pads; and the flexible insulation layer () is not arranged on the surfaces of the electrode sites () and the bonding pads. The prepared flexible neural microelectrode comb has a structure gradually changing from a filament to a mesh to a plane structure, thus improving mechanical stability during a deformation process. The mechanical properties of the implantable flexible neural microelectrode comb match brain tissue, the implantation footprint is small, an inflammatory response of the brain is avoided, and electrophysiological signals in the brain can be stably tracked and measured in a multi-site manner for a long time.

Implantable flexible neural microelectrode comb, and preparation method and implantation method therefor

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Beijing, China

Liang Zou