A mouse for magnetic resonance, comprising an upper shell (1), a lower shell (2), a trackball (3), a circuit board (4) and a cable (5), wherein the inner surfaces of the upper shell (1) and the lower shell (2) are coated with a silver and copper conductive paint layer, the concentration of a silver and copper conductive paint being 13% to 17%; and a manufacturing method for the mouse for magnetic resonance, and a signal transmission apparatus are further comprised. The clinical usage of functional magnetic resonance can be satisfied, a signal interference is avoided, and it is ensured that a remote computer accurately receives a response of a subject.

Disclosed herein are a preparation method of graphene, capable of easily preparing a graphene flake having a smaller thickness and a large area, and a dispersed composition of graphene obtained using the same. The preparation method of graphene includes applying a physical force to dispersion of a carbon-based material including graphite or a derivative thereof, and a dispersant, wherein the dispersant includes a mixture of plural kinds of polyaromatic hydrocarbon oxides, containing the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in a content of 60% by weight or more, and the graphite or the derivative thereof is formed into a graphene flake having a thickness in nanoscale under application of a physical force.

An article of manufacture having an in-molded resistive and/or shielding element and method of making the same are shown and described. In one disclosed method, a resistive and/or shielding element is printed on a film. The film is formed to a desired shape and put in an injection mold. A molten plastic material is introduced into the injection mold to form a rigid structure that retains the film.

A wearable device is provided. The wearable device is used by being attached to a user's skin. The wearable device includes a main body unit having a housing and a substrate, the substrate being arranged inside the housing, an electrode unit including a sensing electrode connected to the main body unit, and a patch unit including one or more conductive members, the one or more conductive members being configured to electrically connect the electrode unit to the user's skin. The electrode unit includes a shielding layer that is not electrically connected to the main body unit. The shielding layer is conductive with a floating potential.

A method of applying an electromagnetic interference (EMI) shield to a substrate includes depositing a layer of ink onto the substrate. The ink contains copper (Cu) nanoplates and a solvent. The solvent is evaporated from the deposited layer, and the deposited layer is sintered to form an EMI shield. In some embodiments, the ink also includes copper nanoparticles and/or copper nanowires. In another aspect, an EMI shield includes a layer of sintered copper nanoplates, and optionally, copper nanoparticles and/or copper nanowires.

Described are electromagnetic shields comprising a substrate, a conductive additive, and a binder incorporated with the conductive additive and deposited on the substrate, and methods of making thereof.

Materials are provided that can be used for electromagnetic interference (EMI) shielding, and methods of fabricating the same and methods of using the same are also provided. Polymer-based fiber thin films can have superior electrical conductivity and excellent EMI shielding efficiency while being ultra-flexible and ultra-lightweight. The fiber thin films can be dual polymer thin films and can incorporate quantum dots (QDs) (e.g., magnetic quantum dots) and/or two-dimensional (2D) conductive nanomaterials within a dual polymer matrix comprising a conductive polymer and a nonconductive polymer. The resultant composite thin film can have low density, high porosity, and high electrical conductivity.

The present application provides a preparation method for a selective electromagnetic shielding and an electronic product thereof, the method comprising: printing electromagnetic shielding ink on a first area on a surface of an electronic packaging module by pad printing, wherein the first area is an area requiring electromagnetic shielding; curing the electromagnetic shielding ink to form an electromagnetic shielding layer. Compared with the existing selective sputtering process, the present application reduces the use of auxiliary materials, reduces costs, has a simple and stable process, does not require vacuum conditions, and promotes low-carbon and environmentally friendly practices.

The present disclosure provides a matte-type electromagnetic interference shielding film including bio-based components, which includes a bio-based insulating layer, a bio-based adhesive layer, a metal layer, and a bio-based electrically conductive adhesive layer. The matte-type electromagnetic interference shielding film including the bio-based component of the present disclosure has a matte appearance and high bio-based content and has the advantages of good surface insulation, high surface hardness, good chemical resistance, high shielding performance, good adhesion strength, low transmission loss, high transmission quality, good operability, high heat resistance, and the inner electrically conductive adhesive layer with long shelf life and storage life. The present disclosure further provides a preparation method thereof.

Disclosed is an electromagnetic interference (EMI) cover for a gas detector including one or more electrical components. The EMI cover includes one or more cover layers, each cover layer including a plastic material layer and one or more layers of conductive or dielectric ink applied to the plastic material layer defining one or more conductive pathways. The one or more conductive pathways are positioned in a pattern to provide electromagnetic interference (EMI) shielding to the one or more electrical component.