Abstract: The present disclosure provides a magnetic dressing and a preparation method and use thereof, belonging to the technical field of pharmaceutical preparations. The magnetic dressing includes a magnetic layer, a drug-loading layer, and a protective layer that are stacked in sequence, where the magnetic layer includes polyvinyl alcohol, gluten, and iron particles. In the present disclosure, a swallowed magnetic dressing is controlled by an external magnetic field, and the magnetic dressing is moved to a pathological position by changing a direction of the external magnetic field; after the external magnetic field is removed, the magnetic dressing changes from a ring to a sheet, thereby completing attachment of an entire lesion surface to complete treatment by autonomous drug release.

Abstract: The present application relates to an organic compound, and there are electron transport and injection groups and a conjugated fused heteroaromatic ring in a structure of the organic compound. The organic compound can be used in a functional layer of an organic light-emitting device (OLED). When used in an OLED, the organic compound of the present application can improve the light-emitting efficiency and service life of the OLED.

Abstract: The present disclosure provides an organic compound and an electronic element and electronic device thereof, and belongs to the technical field of organic electroluminescence. The organic compound of the present disclosure includes a fused conjugated ring system and stereo-arylamino, which can effectively improve the thermal stability, membrane stability, and carrier mobility of the material. When used for an organic light-emitting device (OLED), the organic compound of the present disclosure can improve the light-emitting efficiency and life span of the OLED.

Abstract: A method of preparing a capsule composition by encapsulating an active material such as a fragrance or flavor in the presence of a dispersant that includes a fully hydrolyzed polyvinyl alcohol and a water-dispersible polymer. Also disclosed are capsule compositions prepared by the method and consumer products containing such a capsule composition.