Abstract: The present invention relates to a method for producing a composite membrane, the method comprising impregnating a surface of a porous membrane substrate with an aqueous suspension comprising a mixture of at least one polyamine and at least one phospholipid; and contacting the impregnated surface with an organic phase containing a monomer to thereby deposit a polyamide layer on the impregnated surface. The present invention also relates to a composite membrane comprising at least one porous membrane substrate having nano-sized or micro-sized pores; and at least a polyamide layer disposed on a surface of the porous membrane substrate, the polyamide layer comprising at least one phospholipid dispersed therein, and wherein the polyamide layer is an interfacial polymerization product.

Abstract: The present invention relates to a method for producing a composite membrane, the method comprising impregnating a surface of a porous membrane substrate with an aqueous suspension comprising a mixture of at least one polyamine and at least one phospholipid; and contacting the impregnated surface with an organic phase containing a monomer to thereby deposit a polyamide layer on the impregnated surface. The present invention also relates to a composite membrane comprising at least one porous membrane substrate having nano-sized or micro-sized pores; and at least a polyamide layer disposed on a surface of the porous membrane substrate, the polyamide layer comprising at least one phospholipid dispersed therein, and wherein the polyamide layer is an interfacial polymerization product.

Abstract: A toy water ball includes a plurality of petals each having a first edge portion and a second edge portion. Each first edge portion is provided with first magnetic members, and each second edge portion is provided with second magnetic members. When all petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members of each petal and the second magnetic members of the adjacent petal so that the first edge portion of the petal tightly fit the second edge portion of the adjacent petal and a water-carrying cavity is formed. The toy water ball can be closed or opened repeatedly and can be reused. Thus, it is environmentally friendly and clean. Furthermore, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

Abstract: A toy water ball includes a plurality of petals each having a first edge portion and a second edge portion. Each first edge portion is provided with first magnetic members, and each second edge portion is provided with second magnetic members. When all petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members of each petal and the second magnetic members of the adjacent petal so that the first edge portion of the petal tightly fit the second edge portion of the adjacent petal and a water-carrying cavity is formed. The toy water ball can be closed or opened repeatedly and can be reused. Thus, it is environmentally friendly and clean. Furthermore, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

Abstract: A toy water ball includes a plurality of petals each having a first edge portion and a second edge portion. Each first edge portion is provided with first magnetic members, and each second edge portion is provided with second magnetic members. When all petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members of each petal and the second magnetic members of the adjacent petal so that the first edge portion of the petal tightly fit the second edge portion of the adjacent petal and a water-carrying cavity is formed. The toy water ball can be closed or opened repeatedly and can be reused. Thus, it is environmentally friendly and clean. Furthermore, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

Abstract: A toy water ball includes a plurality of petals each having a first edge portion and a second edge portion. Each first edge portion is provided with first magnetic members, and each second edge portion is provided with second magnetic members. When all petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members of each petal and the second magnetic members of the adjacent petal so that the first edge portion of the petal tightly fit the second edge portion of the adjacent petal and a water-carrying cavity is formed. The toy water ball can be closed or opened repeatedly and can be reused. Thus, it is environmentally friendly and clean. Furthermore, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

Abstract: A toy water ball includes a plurality of petals each having a first edge portion and a second edge portion. Each first edge portion is provided with first magnetic members, and each second edge portion is provided with second magnetic members. When all petals are closed to form a spherical shape, an attraction force is generated between the first magnetic members of each petal and the second magnetic members of the adjacent petal so that the first edge portion of the petal tightly fit the second edge portion of the adjacent petal and a water-carrying cavity is formed. The toy water ball can be closed or opened repeatedly and can be reused. Thus, it is environmentally friendly and clean. Furthermore, the toy water ball can be filled with water in a common water source without a specific pressure, so it can be used in many occasions, and has strong applicability.

Abstract: A toy wall ball includes a pair of petals and a connecting portion connecting the petals. Each petal includes a body, a frame extending inward from the body and a magnetic attraction assembly embedded between the body and the frame. Each magnetic attraction assembly includes magnetic members and a fixing member including fixing cases and connecting strips. Each fixing case encloses a corresponding magnetic member and is connected to a connecting strip. When the petals are in a closed state, the petals jointly enclose and define a water-carrying cavity, and the magnetic members of the petals attract each other to have the frames of the petals tightly contact each other to form a water retaining layer that seals the water-carrying cavity. The connection area between the magnetic members and the frame and body is increased, thereby greatly reducing the risk of the magnetic members falling off the petals and improving safety.

Abstract: Embodiments of the invention are directed to a thrombus profiling assay that combines high shear flow and stenotic geometries with multi-color fluorescence imaging to comprehensively characterize thrombi forming under the physiological settings of arterial thrombosis.

Abstract: A toy water ball is disclosed. The toy water ball comprises a plurality of petals and a connecting member for connecting the petals, wherein each petal comprises a body and a rim extending inwards from the circumferential edge of the body. Each rim comprises magnetic members. The toy water ball has an open state and a closed state. When the toy water ball is in its closed state, the petals together enclose a water carrying cavity. The corresponding magnetic members on the two petals attract each other so the rims tightly abut each other, creating a water-blocking seal, sealing the water carrying cavity. The rims extend into the water carrying cavity. The magnetic members enables repeated open and close of the toy water ball. The toy water ball does not need a pressurized water source to fill with water.

Abstract: 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 Bi2O2Se layer, a black phosphorus (BP) layer, a metal source and a metal drain. The fabrication method includes: transferring, in a wet manner, the Bi2O2Se 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 Bi2O2Se layer, and separately fabricating the metal source and the metal drain on the Bi2O2Se 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.