Chinese Academy of Sciences

Bausch + Lomb Ireland Limited

Shanghai Research Center for Wireless Communications

Fang Wang

Wei Lu

Hong Li

Xiaoshuang Chen

Peng Wang

Jing Xu

Zhen Wang

Hua Qian

Weida Hu

Yunfeng Chen

Xin Jiang

Mei Xia

Yongrong Bian

Runzhang Xie

Xiaotao Wang

Michael Mutz

Yuhao Fu

Hongjie Sheng

Fuxing Dai

Hao Huang

Ting He

Fang Zhong

Jinshui Miao

The present disclosure provides polymorphs and formulations of 4-(7-hydroxy-2-isopropyl-4-oxo-4H-quinazolin-3-yl)-benzonitrile (compound I). The present disclosure further provides methods for treating ocular surface pain by administering 4-(7-hydroxy-2-isopropyl-4-oxo-4H-quinazolin-3-yl)-benzonitrile (compound I). The present invention also provides 5 methods for treating dry eye disease and ocular hyperemia by administering 4-(7-hydroxy-2-isopropyl-4-oxo-4H-quinazolin-3-yl)-benzonitrile.

Crystalline forms of 4-(7-hydroxy-2-isopropyl-4-oxo-4H-quinazolin-3-yl)-benzonitrile and formulations thereof

The present disclosure relates to an infrared photodetector based on a van der waals heterostructure and a preparation method thereof. The infrared photodetector comprises a fully depleted van der waals heterostructure. The fully depleted van der waals heterostructure comprises a first n-type two-dimensional semiconductor layer, a p-type two-dimensional semiconductor layer, and a second n-type two-dimensional semiconductor layer which are sequentially provided from bottom to top. A fully depleted built-in electric field is formed by means of a sandwich structure including the first n-type two-dimensional semiconductor layer, the p-type two-dimensional semiconductor layer and the second n-type two-dimensional semiconductor layer, which can improve the light absorption efficiency while reducing the dark current of a device, and the separation rate and collection efficiency of photo-induced carriers are accelerated.

Infrared photodetector based on van der waals heterostructure and preparation method thereof

The present disclosure provides a momentum-matching and band-alignment van der Waals (vdW) infrared photodetector and a fabrication method thereof. The photodetector includes a substrate, a dielectric layer, a BiOSe layer, a black phosphorus (BP) layer, a metal source and a metal drain. The fabrication method includes: transferring, in a wet manner, the BiOSe layer grown on the mica substrate onto the substrate having the dielectric layer, transferring the mechanically exfoliated BP layer through a micro-region fixed-point transfer device onto the BiOSe layer, and separately fabricating the metal source and the metal drain on the BiOSe layer and the BP layer by processes such as electron beam exposure and electron beam evaporation, thereby forming the momentum-matching and band-alignment vdW infrared photodetector having a vertical structure.

Momentum-matching and band-alignment van der waals (vdW) infrared photodetector and fabrication method thereof

The present invention provides a magnetic biochar-quaternary phosphonium salt bactericidal material, a preparation method therefor and usage thereof, and belongs to the field of water treatment. The preparation method comprises: 1) using corn straw biochar as a precursor to prepare magnetic biochar by a co-precipitation method; and 2) adding the magnetic biochar into deionized water, then adding a quaternary phosphonium salt, performing the magnetic stir at room temperature, raising the temperature after sufficient impregnation, carrying out a hydrothermal reaction, and then cooling to the room temperature to obtain the bactericidal material. The temperature is raised to 60° C.˜70° C. The recycling of the biochar material is effectively realized, the long-acting sterilization of the quaternary phosphonium salt bactericide and the magnetic recovery and recycling of the materials are realized, the residue of the bactericide is reduced, and a foundation is laid for the effective removal of microorganisms in wastewater.

Magnetic biomass carbon-quaternary phosphonium salt sterilization material, preparation method therefor and usage thereof

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Shanghai, China

Fang Wang